Profile

Prof Irene Barnes

Associate Professor
Department
Biochemistry, Genetics and Microbiology
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Research Profiles

My Students

Ariska van der Nest

Primary Supervisor

Felipe Balocchi

Ginna M. Granados

Co Supervisor

Firehiwot Eshetu

Tanya Welgemoed

Primary Supervisor

Cheyenne Theron

Co Supervisor

Claire Randolph

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Current research

Dothistroma
Taxonomy, phylogeny and population biology of the red-band needle blight pathogens.
In this study we focus on characterising and describing the pathogens that cause dothistroma needle blight (DNB) or red-band needle blight. We determine their phylogenetic placement within the Mycosphaerellaceae and investigate their host range and geographical distribution. This work also involves the development of microsatellite markers for population studies of D. septosporum and D. pini.

Ceratocystis
Taxonomy, phylogeny and population biology of Ceratocystis species.
Much of this work involves the screening of molecular markers for their efficacy in delineating cryptic species within the Ceratocystis species complexes. In addition we study some of the most pathogenic Ceratocystis species on a population level to determine the invasiveness and movement of these fungi on a global scale.

My Book Chapters

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Book Chapters
Barnes I, van der Nest A, Granados GM, Wingfield MJ. 2022. Dothistroma needle blight. In: Forest Microbiology. Asiegbu F, Kovalchuk A. (eds). Elsevier, pp 179 - 199.

My Journal Articles

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Publication
Balocchi F, Wingfield MJ, Paap T, Ahumada R, Barnes I. (2022) Pathogens of the Araucariaceae: How much do we know?. Current Forestry Reports 10.1007/s40725-022-00164-z
Li JQ, Wingfield MJ, Barnes I, Chen SF. (2022) Calonectria in the age of genes and genomes: Towards understanding an important but relatively unknown group of pathogens. Molecular Plant Pathology 10.1111/mpp.13209
Theron CA, Marincowitz S, Rodas CA, Wingfield MJ, Barnes I. (2022) Lecanosticta pharomachri and its newly discovered sexual state causing a serious needle disease of Pinus spp. in Colombia. Plant Disease 10.1094/PDIS-08-21-1759-RE
Liu FF, Duong TA, Barnes I, Wingfield MJ, Chen SF. (2021) Population diversity and genetic structure reveal patterns of host association and anthropogenic impact for the globally important fungal tree pathogen Ceratocystis manginecans. Journal of Fungi 7:759. 10.3390/jof7090759
Tsopelas P, Soulioti N, Wingfield MJ, Barnes I, Marincowitz S, Tjamos EC, Paplomatas EJ. (2021) Ceratocystis ficicola causing a serious disease of Ficus carica in Greece. Phytopathologia Mediterranea 60(2):337-349. 10.36253/phyto-12794
Adamčíková K, Jánošíková Z, van der Nest A, Adamčík S, Ondrušková E, Barnes I. (2021) *Population structure and genetic diversity suggest recent introductions of Dothistroma pini* in Slovakia*. Plant Pathology* 70(8):1883-1896. 10.1111/ppa.13428
Aglietti C, Meinecke CD, Ghelardini L, Barnes I, van der Nest A, Villari C. (2021) *Rapid detection of pine pathogens Lecanosticta acicola, Dothistroma pini* and D. septosporum on needles by probe-based LAMP assays*. Forests* 12(4):479. 10.3390/f12040479
Lynn KMT, Wingfield MJ, Durán A, Oliveira LSS, de Beer ZW, Barnes I. (2021) *Novel Fusarium* mutualists of two Euwallacea species infesting Acacia crassicarpa in Indonesia*. Mycologia* 113(3):536-558. 10.1080/00275514.2021.1875708
Balocchi F, Wingfield MJ, Ahumada R, Barnes I. (2021) Pewenomyces kutranfy gen nov. et sp. nov. causal agent of an important canker disease on Araucaria araucana in Chile. Plant Pathology 70(5):1243-1259. 10.1111/ppa.13353
Mullett MS, Drenkhan R, Adamson K, Boroń P, Lenart-Boroń A, Barnes I, Tomšovský M, Jánošíková Z, Adamčíková K, Ondrušková E, Queloz V, Piškur B, Musolin DL, Davydenko K, Georgieva M, Schmitz S, Kačergius A, Ghelardini L, Kranjec Orlović J, Müller M, Oskay F, Hauptman T, Halász Á, Markovskaja S, Solheim H, Vuorinen M, Heinzelmann R, Hamelin RC, Konečný A. (2021) *Worldwide genetic structure elucidates the Eurasian origin and invasion pathways of Dothistroma septosporum, causal agent of Dothistroma Needle Blight. Journal of Fungi* 7:111. 10.3390/jof7020111
Nsibo DL, Barnes I, Omondi DO, Dida MM, Berger DK. (2021) *Population genetic structure and migration patterns of the maize pathogenic fungus, Cercospora zeina* in East and Southern Africa*. Fungal Genetics and Biology* 149(103527) 10.1016/j.fgb.2021.103527
Pham NQ, Marincowitz S, Solís M, Duong TA, Wingfield BD, Barnes I, Slippers B, Muro Abad JI, Durán A, Wingfield MJ. (2021) *Eucalyptus scab and shoot malformation: A new and serious foliar disease of Eucalyptus* caused by Elsinoe necatrix sp. nov.*. Plant Pathology* 70:1230-1242. 10.1111/ppa.13348
Capron A, Feau N, Heinzelmann R, Barnes I, Benowicz A, Bradshaw RE, Dale A, Lewis KJ, Owen TJ, Reich R, Ramsfield TD, Woods AJ, Hamelin RC. (2021) Signatures of post-glacial genetic isolation and human-driven migration in the Dothistroma needle blight pathogen in western Canada. Phytopathology 111:116-127. 10.1094/PHYTO-08-20-0350-FI
Mesanza N, Raposo R, Elvira‐Recuenco M, Barnes I, van der Nest A, Hernández M, Pascual MT, Barrena I, Martín US, Cantero A, Hernandez‐Escribano L, Iturritxa E. (2021) *New hosts for Lecanosticta acicola* and Dothistroma septosporum in newly established arboreta in Spain*. Forest Pathology* 51:e12650 10.1111/efp.12650
Soewarto J, Somchit C, du Plessis E, Barnes I, Granados GM, Wingfield MJ, Shuey L, Bartlett M, Fraser S, Scott P, Miller E, Waipara N, Sutherland R, Ganley B. (2021) Susceptibility of native New Zealand Myrtaceae to the South African strain of Austropuccinia psidii: A biosecurity threat. Plant Pathology 70:667-675. 10.1111/ppa.13321
Geiser DM, Al-Hatmi A, Aoki T, Arie T, Balmas V, Barnes I, Bergstrom GC, Bhattacharyya MKK, Blomquist CL, Bowden R, Brankovics B, Brown DW, Burgess LW, Bushley K, Busman M, Cano-Lira JF, Carrillo JD, Chang HX, Chen CY, Chen W, Chilvers MI, Chulze SN, Coleman JJ, Cuomo CA, de Beer ZW, de Hoog GS, Del Castillo-Múnera J, Del Ponte E, Diéguez-Uribeondo J, Di Pietro A, Edel-Hermann V, Elmer WH, Epstein L, Eskalen A, Esposto MC, Everts KL, Fernández-Pavía SP, da Silva GF, Foroud NA, Fourie G, Frandsen RJN, Freeman S, Freitag M, Frenkel O, Fuller KK, Gagkaeva T, Gardiner DM, Glenn AE, Gold S, Gordon T, Gregory NF, Gryzenhout M, Guarro J, Gugino B, Gutiérrez S, Hammond-Kosack K, Harris LJ, Homa M, Hong CF, Hornok L, Huang JW, Ilkit M, Jacobs A, Jacobs K, Jiang C, Jimenez-Gasco MDM, Kang S, Kasson MT, Kazan K, Kennell JC, Kim H, Kistler HC, Kuldau GA, Kulik T, Kurzai O, Laraba I, Laurence MH, Lee TY, Lee YW, Lee YH, Leslie JF, Liew ECY, Lofton LW, Logrieco A, Sánchez López-Berges M, Luque AG, Lysøe E, Ma LJ, Marra RE, Martin FN, May SR, McCormick S, McGee CT, Meis JF, Migheli Q, Mohamed Nor NMI, Monod M, Moretti A, Mostert D, Mulé G, Munaut F, Munkvold GP, Nicholson P, Nucci M, O'Donnell K, Pasquali M, Pfenning LH, Prigitano A, Proctor R, Ranque S, Rehner S, Rep M, Rodríguez-Alvarado G, Rose LJ, Roth MG, Ruiz-Roldán C, Saleh AA, Salleh B, Sang H, Scandiani M, Scauflaire J, Schmale D 3, Short DP, Šišić A, Smith J, Smyth CW, Son H, Spahr E, Stajich JE, Steenkamp E, Steinberg C, Subramaniam R, Suga H, Summerell BA, Susca A, Swett CL, Toomajian C, Torres-Cruz TJ, Tortorano AM, Urban M, Vaillancourt LJ, Vallad GE, van der Lee T, Vanderpool D, van Diepeningen AD, Vaughan M, Venter E, Vermeulen M, Verweij PE, Viljoen A, Waalwijk C, Wallace EC, Walther G, Wang J, Ward T, Wickes B, Wiederhold NP, Wingfield MJ, Wood AKM, Xu JR, Yang XB, Yli-Matilla T, Yun SH, Zakaria L, Zhang H, Zhang N, Zhang S, Zhang X. (2021) *Phylogenomic analysis of a 55.1 kb 19-gene dataset resolves a monophyletic Fusarium* that includes the Fusarium solani Species Complex*. Phytopathology* 111(7):1064-1079. 10.1094/PHYTO-08-20-0330-LE
Li JQ, Barnes I, Liu FF, Wingfield MJ, Chen SF. (2021) *Global genetic diversity and mating type distribution of Calonectria pauciramosa: an important wide host-range plant pathogen. Plant Disease* 10.1094/PDIS-05-20-1050-RE
Fourie A, de Jonge R, van der Nest MA, Duong TA, Wingfield MJ, Wingfield BD, Barnes I. (2020) *Genome comparisons suggest an association between Ceratocystis* host adaptations and effector clusters in unique transposable element families. 143**:103433. 10.1016/j.fgb.2020.103433
Marincowitz S, Barnes I, De Beer ZW, Wingfield MJ. (2020) Epitypification of Ceratocystis fimbriata. Fungal Systematics and Evolution 6:289-298. 10.3114/fuse.2020.06.14
Hulcr J, Barnes I, De Beer ZW, Duong TA, Gazis R, Johnson AJ, Jusino MA, Kasson MT, Li Y, Lynch S, Mayers C, Musvuugwa T, Roets F, Seltmann KC, Six D, Vanderpool D, Villari C. (2020) Bark beetle mycobiome: collaboratively defined research priorities on a widespread insect-fungus symbiosis. Symbiosis 81:101-113. 10.1007/s13199-020-00686-9
Roux J, Wingfield MJ, Fourie A, Noeth K, Barnes I. (2020) Ceratocystis wilt on Eucalyptus: first record from South Africa. Southern Forests: A Journal of Forest Science 82:24-31. 10.2989/20702620.2019.1686687
Kanzi AM, Trollip C, Wingfield MJ, Barnes I, van der Nest MA, Wingfield BD. (2020) Phylogenomic incongruence in Ceratocystis: a clue to speciation?. BMC Genomics 21:362. 10.1186/s12864-020-6772-0
Li JQ, Wingfield BD, Wingfield MJ, Barnes I, Fourie A, Crous PW, Chen SF. (2020) Mating genes in Calonectria and evidence for a heterothallic ancestral state . Persoonia 45:163-176. 10.3767/persoonia.2020.45.06
Lynn KMT, Wingfield MJ, Durán A, Marincowitz S, Oliveira LSS , De Beer Z, Barnes I. (2020) Euwallacea perbrevis (Coleoptera: Curculionidae: Scolytinae), a confirmed pest on Acacia crassicarpa in Riau, Indonesia, and a new fungal symbiont; Fusarium rekanum sp. nov.. Antonie van Leeuwenhoek 113(6):803-823. 10.1007/s10482-020-01392-8
McTaggart AR, du Plessis E, Roux J, Barnes I, Fraser S, Granados GM, Ho WWH, Shuey LS, Drenth A. (2020) Sexual reproduction in populations of Austropuccinia psidii. European Journal of Plant Pathology 156:537-545. 10.1007/s10658-019-01903-y
Rauf MRBA, McTaggart AR, Marincowitz S, Barnes I, Japarundin Y, Wingfield MJ. (2020) *Pathogenicity of Chrysoporthe deuterocubensis* and Myrtoporthe bodenii gen. et sp. nov. on Eucalyptus in Sabah, Malaysia*. Plant Pathology* 49(1):53-64. 10.1007/s13313-019-00676-6
Guo Y, Hunziker L, Mesarich CH, Chettri P, Dupont PY, Ganley RJ, McDougal RL, Barnes I, Bradshaw RE. (2020) *DsEcp2-1 is a polymorphic effector that restricts growth of Dothistroma septosporum* in pine*. Fungal Genetics and Biology* 135:103300. 10.1016/j.fgb.2019.103300
Wingfield BD, van Heerden CJ, van der Nest MA, Steenkamp ET, Roets F, Geiser DM, Duong TA, Dreyer LL, Coetzee MPA, Barnes I, Aylward J, Bushula-Njah VS, Simpson MC, Fourie A, Wingfield MJ. (2019) Draft genome sequences of Fusarium xylarioides, Teratosphaeria gauchensis and T. zuluensis and genome annotation for Ceratocystis fimbriata. IMA Fungus 10(13) 10.1186/s43008-019-0013-7
van der Nest A, Wingfield MJ, Janoušek J, Barnes I. (2019) Lecanosticta acicola: A growing threat to expanding global pine forests and plantations. Molecular Plant Pathology 20:1325-1474. 10.1111/mpp.12853
Fourie A, van der Nest MA, De Vos L, Wingfield MJ, Wingfield BD, Barnes I. (2019) *QTL mapping of mycelial growth and aggressiveness to distinct hosts in Ceratocystis* pathogens*. Fungal Genetics and Biology* 131:103242. 10.1016/j.fgb.2019.103242
van der Nest A, Wingfield MJ, Ortiz PC, Barnes I. (2019) Biodiversity of Lecanosticta pine-needle blight pathogens suggests a Mesoamerican Centre of origin. IMA Fungus 1:2 10.1186/s43008-019-0004-8
Bradshaw RE, Sim AD, Chettri P, Dupont P-Y, Guo Y, Hunziker L, McDougal RL, van der Nest A, Fourie A, Wheeler D, Cox MP, Barnes I. (2019) *Global population genomics of the forest pathogen Dothistroma septosporum* reveal chromosome duplications in high dothistromin-producing strains*. Molecular Plant Pathology* 20(6):784-799. 10.1111/mpp.12791
Sadiković D, Piškur B, Barnes I, Hauptman T, Diminić D, Wingfield MJ, Jurc D. (2019) *Genetic diversity of the pine pathogen Lecanosticta acicola,* in Slovenia and Croatia*. Plant Pathology* 68:1120-1131. 10.1111/ppa.13017
du Plessis E, Granados GM, Barnes I, Ho WH, Alexander BJR, Roux J, McTaggart AR. (2019) *The pandemic strain of Austropuccinia psidii* causes myrtle rust in New Zealand and Singapore*. Australasian Plant Pathology* 48:253-256. 10.1007/s13313-019-0624-x
Pham NQ, Barnes I, Chen SF, Liu FF, Dang NQ, Pham TQ, Lombard L, Crous PW, Wingfield MJ. (2019) Ten new species of Calonectria from Indonesia and Vietnam. Mycologia 111:78-102. 10.1080/00275514.2018.1522179
Nsibo DL, Barnes I, Kunene NT, Berger DK. (2019) *Influence of farming practices on the population genetics of the maize pathogen Cercospora zeina* in South Africa*. Fungal Genetics and Biology* 125:36-44. 10.1016/j.fgb.2019.01.005
Liu FF, Li GQ, Roux J, Barnes I, Wilson AM, Wingfield MJ, Chen SF. (2018) *Nine novel species of Huntiella* from southern China with three distinct mating strategies and variable levels of pathogenicity*. Mycologia* 110:1145-1171. 10.1080/00275514.2018.1515450
Barnes I, Fourie A, Wingfield MJ, Harrington TC, McNew DL, Sugiyama LS, Luiz BC, Heller WP, Keith LM. (2018) *New Ceratocystis* species associated with rapid death of Metrosideros polymorpha in Hawai`i*. Persoonia* 40:154–181. 10.3767/persoonia.2018.40.07
Pham NQ, Barnes I, Chen SF, Pham TQ, Lombard L, Crous PW, Wingfield MJ. (2018) New species of Cylindrocladiella from plantation soils in South-East Asia. MycoKeys 32:1-24. 10.3897/mycokeys.32.23754
Fourie A, Wingfield MJ, Wingfield BD, van der Nest MA, Loots MT, Barnes I. (2018) *Inheritance of phenotypic traits in the progeny of a Ceratocystis* interspecific cross*. Fungal Biology* 122:717-729. 10.1016/j.funbio.2018.03.001
Liu FF, Barnes I, Roux J, Wingfield MJ, Chen SF. (2018) *Molecular phylogenetics and microsatellite analysis reveal a new pathogenic Ceratocystis* species in the Asian-Australian Clade*. Plant Pathology* 67:1097-1113. 10.1111/ppa.12820
Adamson K, Mullett MS, Solheim H, Barnes I, Müller MM, Hantula J, Vuorinen M, Kačergius A, Markovskaja S, Musolin DL, Davydenko K, Keča N, Ligi K, Priedite RD, Millberg H, Drenkhan R. (2018) *Looking for relationships between the populations of Dothistroma septosporum* in northern Europe and Asia*. Fungal Genetics and Biology* 110:15-25. 10.1016/j.fgb.2017.12.001
McTaggart AR, Shuey LS, Granados GM, du Plessis E, Fraser S, Barnes I, Naidoo S, Wingfield MJ, Roux J. (2018) *Evidence that Austropuccinia psidii* may complete its sexual life cycle on Myrtaceae*. Plant Pathology* 67:729-734. 10.1111/ppa.12763
Li JQ, Wingfield MJ, Liu QL, Barnes I, Roux J, Lombard L, Crous PW, Chen SF. (2017) Calonectria species isolated from Eucalyptus plantations and nurseries in South China.. IMA Fungus 8(2):259-294. 10.5598/imafungus.2017.08.02.04
Ozturk KI, Chettri P, Dupont P-Y, Barnes I, McDougal RL, Moore GG, Sim A, Bradshaw RE. (2017) Evolution of polyketide synthesis in a Dothideomycete forest pathogen. Fungal Genetics and Biology 106:42-50. 10.1016/j.fgb.2017.07.001
Wingfield MJ, Barnes I, De Beer ZW, Roux J, Wingfield BD, Taerum SJ. (2017) Novel associations between ophiostomatoid fungi, insects and tree hosts: current status—future prospects. Biological Invasions 19:3215-3228. 10.1007/s10530-017-1468-3
Wingfield MJ, Slippers B, Wingfield BD, Barnes I. (2017) The unified framework for biological invasions: a forest fungal pathogen perspective. Biological Invasions 19(11):3201-3214. 10.1007/s10530-017-1450-0
Granados GM, McTaggart AR, Barnes I, Rodas CA, Roux J, Wingfield MJ. (2017) *The pandemic biotype of Austropuccinia psidii* discovered in South America*. Australasian Plant Pathology* 46(3):267-275. 10.1007/s13313-017-0488-x
Marin-Felix Y, Groenewald JZ, Cai L, Chen Q, Marincowitz S, Barnes I, Bensch K, Braun U, Camporesi E, Damm U, De Beer ZW, Dissanayake A, Edwards J, Giraldo A, Hernández-Restrepo M, Hyde KD, Jayawardena RS, Lombard L, Luangsa-ard J, McTaggart AR, Rossman AY, Sandoval-Denis M, Shen M, Shivas RG, Tan YP, van der Linde EJ, Wingfield MJ, Wood AR, Zhang JQ, Zhang Y, Crous PW. (2017) Genera of phytopathogenic fungi: GOPHY 1. Studies in Mycology 86:99-216. 10.1016/j.simyco.2017.04.002
Misse AC, Barnes I, Roets F, Mbenoun M, Wingfield MJ, Roux J. (2017) Ecology and population structure of a tree wound-infecting fungus in a native South African forest environment. Fungal Biology 121(1):69-81. 10.1016/j.funbio.2016.09.002
Li JQ, Wingfield MJ, Liu QL, Barnes I, Roux J, Lorenzo L, Crous PW, Chen SF. (2017) Calonectria species isolated from Eucalyptus plantations and nurseries in South China. IMA FUNGUS 8(2):259-286. 10.5598/imafungus.2017.08.02.04
Roux J, Granados GM, Shuey L, Barnes I, Wingfield MJ, McTaggart AR. (2016) *A unique genotype of the rust pathogen, Puccinia psidii, on Myrtaceae in South Africa. Australasian Plant Pathology* 45:645-652. 10.1007/s13313-016-0447-y
Barnes I, van der Nest A, Mullett MS, Crous PW, Drenkhan R, Musolin DL, Wingfield MJ. (2016) *Neotypification of Dothistroma septosporum* and epitypification of D. pini, causal agents of Dothistroma needle blight of pine*. Forest Pathology* 46(5):388-407. 10.1111/efp.12304
Drenkhan R, Tomešová-Haataja V, Fraser S, Bradshaw RE, Vahalík P, Mullett MS, Martín-García J, Bulman LS, Wingfield MJ , Kirisits T, Cech TL, Schmitz S, Baden R, Tubby K, Brown A, Georgieva M, Woods A, Ahumada R, Jankovský L, Thomsen IM, Adamson K, Marçais B, Vuorinen M, Tsopelas P, Koltay A, Halasz A, La Porta N, Anselmi N, Kiesnere R, Markovskaja S, Kačergius A, Papazova-Anakieva I, Risteski M, Sotirovski K, Lazarević J, Solheim H, Boroń P, Bragança H, Chira D, Musolin DL, Selikhovkin AV, Bulgakov TS, Keča N, Karadžić D, Galovic V, Pap P, Markovic M, Poljakovic Pajnik L, Vasic V, Ondrušková E, Piškur B, Sadiković D, Diez JJ, Solla A, Millberg H, Stenlid J, Angst A, Queloz V, Lehtijärvi A, Doğmuş-Lehtijärvi HT, Oskay F, Davydenko K, Meshkova V, Craig D, Woodward S, Barnes I. (2016) *Global geographic distribution and host range of Dothistroma* species: a comprehensive review*. Forest Pathology* 46(5):408-442. 10.1111/efp.12290
Siziba VI, Wingfield MJ, Sadikovic D, Mullett MS, Piskur B, Barnes I. (2016) Development of microsatellite markers for the pine needle blight pathogen, Dothistroma pini. Forest Pathology 46(5):497-506. 10.1111/efp.12282
Human MP, Barnes I, Craven M, Crampton BG. (2016) *Lack of population structure and mixed reproduction modes in Exserohilum turcicum* from South Africa*. Phytopathology* 106(11):1386-1392. 10.1094/PHYTO-12-15-0311-R
Muller MF, Barnes I, Kunene NT, Crampton BG, Bluhm B, Phillips S, Olivier NA, Berger DK. (2016) Cercospora zeina from maize in South Africa exhibits high genetic diversity and lack of regional population differentiation. Phytopathology 106(10):1194-1205. 10.1094/PHYTO-02-16-0084-FI
Lee DH, Roux J, Wingfield BD, Barnes I, Wingfield MJ. (2016) *New host range and distribution of Ceratocystis pirilliformis* in South Africa*. European Journal of Plant Pathology* 146(3):483-496. 10.1007/s10658-016-0933-7
Fourie A, Wingfield MJ, Wingfield BD, Thu PQ, Barnes I. (2016) A possible centre of diversity in South East Asia for the tree pathogen, Ceratocystis manginecans. Infection, Genetics and Evolution 41:73-83. 10.1016/j.meegid.2016.03.011
Lee DH, Roux J, Wingfield BD, Barnes I, Mostert L, Wingfield MJ. (2016) *The genetic landscape of Ceratocystis albifundus* populations in South Africa reveals a recent fungal introduction event*. Fungal Biology* 120(5):690-700. 10.1016/j.funbio.2016.03.001
Janousek J, Wingfield MJ, Marmolejo Monsivais JG, Jankovský L, Stauffer C, Konečný A, Barnes I. (2016) *Genetic analyses suggest separate introductions of the pine pathogen Lecanosticta acicola* into Europe*. Phytopathology* 106:1413-1425. 10.1094/PHYTO-10-15-0271-R
Fraser S, Martin-Garcia J, Perry A, Kabir MS, Owen T, Solla A, Brown AV, Bulman L, Barnes I, Hale MD, Vasconcelos MW, Lewis K, Doğmuş-Lehtijarvi HT, Markovskaja S, Woodward S, Bradshaw RE. (2016) *A review of Pinaceae resistance mechanisms against needle and shoot pathogens with a focus on the Dothistroma-Pinus* interaction*. Forest Pathology* 46:453-471. 10.1111/efp.12201
Rodas CA, Wingfield MJ, Granados GM, Barnes I. (2016) *Dothistroma Needle Blight: an emerging epidemic caused by Dothistroma septosporum* in Colombia*. Plant Pathology* 65(1):53-63. 10.1111/ppa.12389
Bulman LS, Bradshaw RE, Fraser S, Martín-García J, Barnes I, Musolin DL, La Porta N, Woods A, Diez JJ, Koltay A, Drenkhan R, Ahumada R, Poljakovic Pajnik L, Queloz V, Piškur B, Doğmuş-Lehtijärvi HT, Chira D, Tomešová-Haataja V, Georgieva M, Jankovský L, Anselmi N, Markovskaja S, Papazova-Anakieva I, Sotirovski K, Lazarević J, Adamčíková K, Boroń P, Bragança H, Vettraino AM, Selikhovkin AV, Bulgakov TS, Tubby K. (2016) A worldwide perspective on the management and control of Dothistroma needle blight. Forest Pathology 46:472-488. 10.1111/efp.12305
Wingfield BD, Barnes I, De Beer ZW, De Vos L, Duong TA, Kanzi AM, Naidoo K, Nguyen HDT, Santana QC, Sayari M, Seifert KA, Steenkamp ET, Trollip C, Van der Merwe N, Van der Nest MA, Wilken PM, Wingfield MJ. (2015) Draft genome sequences of Ceratocystis eucalypticola, Chrysoporthe cubensis, C. deuterocubensis, Davidsoniella virescens, Fusarium temperatum, Graphilbum fragrans, Penicillium nordicum, and Thielaviopsis musarum. IMA Fungus 6(2):493-506. 10.5598/imafungus.2015.06.02.13
Stielow JB, Lévesque CA, Seifert KA, Meyer W, Irinyi L, Smits D, Renfurm R, Verkley GJM, Groenewald M, Chaduli D, Lomascolo A, Welti S, Lesage-Meessen L, Favel A, Al-Hatmi AMS, Damm U, Yilmaz N, Houbraken J, Lombard L, Quaedvlieg W, Binder M, Vaas LAI, Vu D, Yurkov A, Begerow D, Roehl O, Guerreiro M, Fonseca A, Samerpitak K, Van Diepeningen AD, Dolatabadi S, Moreno LF, Casaregola S, Mallet S, Jacques N, Roscini L, Egidi E, Bizet C, Garcia-Hermoso D, Martín MP, Deng S, Groenewald JZ, Boekhout T, De Beer ZW, Barnes I, Duong TA, Wingfield MJ, De Hoog GS, Crous PW, Lewis CT, Hambleton S, Moussa TAA, Al-Zahrani HS, Almaghrabi OA, Louis-Seize G, Assabgui R, McCormick W, Omer G, Dukik K, Cardinali G, Eberhardt U, De Vries M, Robert V. (2015) One fungus, which genes? Development and assessment of universal primers for potential secondary fungal DNA barcodes. Persoonia 35:242-263. 10.3767/003158515X689135
Crous PW, Wingfield MJ, Guarro J, Hernandez-Restrepo M, Sutton DA, Acharya K, Barber PA, Boekhout T, Dimitrov RA, Duenas M, Dutta AK, Gene J, Gouliamova DE, Groenewald M, Lombard L, Morozova OV, Sarkar J, Smith MTh, Stchigel AM, Wiederhold NP, Alexandrova AV, Antelmi I, Armengol J, Barnes I, Cano-Lira JF, Castaneda Ruiz RF, Contu M, Courtecuisse PrR, Da Silveira AL, Decock CA, De Goes A, Edathodu J, Ercole E, Firmino AC, Fourie A, Fournier J, Furtado EL, Geering ADW, Gershenzon J, Giraldo A, Gramaje D, Hammerbacher A, He X-L, Haryadi D, Khemmuk W, Kovalenko AE, Krawczynski R, Laich F, Lechat C, Lopes UP, Madrid H, Malysheva EF, Marin-Felix Y, Martin MP, Mostert L, Nigro F, Pereira OL, Picillo B, Pinho DB, Popov ES, Rodas Pelaez CA, Rooney-Latham S, Sandoval-Denis M, Shivas RG, Silva V, Stoilova-Disheva MM, Telleria MT, Ullah C, Unsicker SB, Van der Merwe NA, Vizzini A, Wagner H-G, Wong PTW, Wood AR, Groenewald JZ. (2015) Fungal Planet description sheets: 320–370. Persoonia 34:167-266. 10.3767/003158515X688433
Mullett MS, Brown AV, Barnes I. (2015) *Population structure and reproductive mode of Dothistroma septosporum* in the Brittany peninsula of France*. European Journal of Plant Pathology* 143(2):261-275. 10.1007/s10658-015-0678-8
Liu FF, Mbenoun M, Barnes I, Roux J, Wingfield MJ, Li GQ, Li JQ, Chen SF. (2015) *New Ceratocystis* species from Eucalyptus and Cunninghamia in South China*. Antonie van Leeuwenhoek* 107(6):1451–1473. 10.1007/s10482-015-0441-3
Fourie A, Wingfield MJ, Wingfield BD, Barnes I. (2015) Molecular markers delimit cryptic species in Ceratocystis sensu stricto. Mycological Progress 14(1):1-18. 10.1007/s11557-014-1020-0
De Beer ZW, Duong TA, Barnes I, Wingfield BD, Wingfield MJ. (2014) *Redefining Ceratocystis* and allied genera*. Studies in Mycology* 79:187-219. 10.1016/j.simyco.2014.10.001
Barnes I, Walla JA, Bergdahl A, Wingfield MJ. (2014) *Four new host records and first report of Dothistroma* needle blight caused by Dothistroma pini in North and South Dakota, and in Indiana in the USA*. Plant Disease* 98(10):1443. 10.1094/PDIS-06-14-0606-PDN
Barnes I, Wingfield MJ, Carbone I, Kirisits T, Wingfield BD. (2014) Population structure and diversity of an invasive pine needle pathogen reflects anthropogenic activity. Ecology and Evolution 4(18):3642-3661. 10.1002/ece3.1200
Haasbroek MP, Craven M, Barnes I, Crampton BG. (2014) Microsatellite and mating type primers for the maize and sorghum pathogen, Exserohilum turcicum. Australasian Plant Pathology 43(5):577-581. 10.1007/s13313-014-0289-4
Al Adawi AO, Barnes I, Khan IA, Deadman ML, Wingfield BD, Wingfield MJ. (2014) *Clonal structure of Ceratocystis manginecans* populations from mango wilt disease in Oman and Pakistan*. Australasian Plant Pathology* 43(4):393-402. 10.1007/s13313-014-0280-0
Janoušek J, Krumböck S, Kirisits T, Bradshaw RE, Barnes I, Jankovský L, Stauffer C. (2014) Development of microsatellite and mating type markers for the pine needle pathogen Lecanosticta acicola. Australasian Plant Pathology 43:161-165. 10.1007/s13313-013-0256-5
Al Adawi AO, Al Jabri RM, Deadman ML, Barnes I, Wingfield B, Wingfield MJ. (2013) *The mango sudden decline pathogen, Ceratocystis manginecans, is vectored by Hypocryphalus mangiferae* (Coleoptera: Scolytinae) in Oman*. European Journal of Plant Pathology* 135:243-251. 10.1007/s10658-012-0081-7
Al Adawi AO, Barnes I, Khan IA, Al Subhi AM, Al Jahwari AA, Deadman ML, Wingfield BD, Wingfield MJ. (2013) Ceratocystis manginecans associated with a serious wilt disease of two native legume trees in Oman and Pakistan. Australasian Plant Pathology 42:179-193. 10.1007/s13313-012-0196-5
Tsopelas P, Barnes I, Soulioti N, Wingfield MJ. (2013) Dothistroma septosporum identified in Greece on Pinus brutia and Pinus nigra plantations. Plant Disease 97:1247. 10.1094/PDIS-11-12-1107-PDN
Wingfield BD, Steenkamp ET, Santana QC, Coetzee MPA, Bam S, Barnes I, Beukes CW, Chane W-Y, de Vos L, Fourie G, Friend M, Gordon TR, Herron DA, Holt C, Korf I, Kvas M, Martin SH, Mlonyeni XO, Naidoo K, Phasha MM, Postma A, Reva O, Roos H, Simpson M, Slinski S, Slippers B, Sutherland R, van der Merwe NA, van der Nest MA, Venter SNV, Wilken PM, Yandell M, Zipfel R, Wingfield MJ. (2012) First fungal genome sequence from Africa: a preliminary analysis. South African Journal of Science 108:104-122. 10.4102/sajs.v108i1/2.537
Barnes I, Kirisits T, Wingfield MJ, Wingfield BD. (2011) *Needle blight of pine caused by two species of Dothistroma* in Hungary*. Forest Pathology* 41(5):361-369. 10.1111/j.1439-0329.2010.00689.x
Chen SF, Barnes I, Chungu D, Roux J, Wingfield MJ, Xie YJ, Zhou XD. (2011) *High population diversity and increasing importance of the Eucalyptus* stem canker pathogen, Teratosphaeria zuluensis, in South China*. Australasian Plant Pathology* 40(4):407-415. 10.1007/s13313-011-0051-0
Cortinas MN, Barnes I, Wingfield BD, Wingfield MJ. (2011) Unexpected genetic diversity revealed in the Eucalyptus canker pathogen Teratosphaeria gauchensis. Australasian Plant Pathology 40(5):497-503. 10.1007/s13313-011-0057-7
Cortinas MN, Barnes I, Wingfield MJ, Wingfield BD. (2010) Genetic diversity in the Eucalyptus stem pathogen Teratosphaeria zuluensis. Australasian Plant Pathology 39(5):383-393. 10.1071/AP10010
Grobbelaar JW, Barnes I, Cortinas MN, Bloomer P, Wingfield MJ, Wingfield BD. (2009) Development and characterization of polymorphic markers for the sap-stain fungus Ophiostoma quercus. Molecular Ecology Resources 9(1):399-401. 10.1111/j.1755-0998.2008.02239.x
Nkuekam GK, Barnes I, Wingfield MJ, Roux J. (2009) *Distribution and population diversity of Ceratocystis pirilliformis* in South Africa*. Mycologia* 101(1):17-25. 10.3852/07-171
Barnes I, Kirisits T, Akulov A, Chhetri DB, Wingfield BD, Bulgakov TS, Wingfield MJ. (2008) New host and country records of the Dothistroma needle blight pathogens from Europe and Asia. Forest Pathology 38(3):178-195. 10.1111/j.1439-0329.2007.00536.x
Barnes I, Cortinas MN, Wingfield MJ, Wingfield BD. (2008) Microsatellite markers for the red band needle blight pathogen, Dothistroma septosporum. Molecular Ecology Resources 8(5):1026-1029. 10.1111/j.1755-0998.2008.02142.x
Groenewald M, Barnes I, Bradshaw RE, Brown AV, Dale A, Groenewald JZ, Lewis KJ, Wingfield BD, Wingfield MJ, Crous PW. (2007) *Characterization and distribution of mating type genes in the Dothistroma* needle blight pathogens*. Phytopathology* 97(7):825-834. 10.1094/PHYTO-97-7-0825
Tsopelas P, Barnes I, Wingfield MJ, Xenopoulos S. (2007) Seiridium cardinale on Juniperus species in Greece. Forest Pathology 37(5):338-347. 10.1111/j.1439-0329.2007.00510.x
Cortinas MN, Barnes I, Wingfield BD, Wingfield MJ. (2006) Polymorphic microsatellite markers for the Eucalyptus fungal pathogen Colletogloeopsis zuluensis. Molecular Ecology Notes 6(3):780-783. 10.1111/j.1471-8286.2006.01342.x
Van Wyk M, Roux J, Barnes I, Wingfield BD, Wingfield MJ. (2006) *Molecular phylogeny of the Ceratocystis moniliformis* complex and description of C. tribiliformis sp. nov*. Fungal Diversity* 21:181-201.
Barnes I, Nakabonge G, Roux J, Wingfield BD, Wingfield MJ. (2005) *Comparison of populations of the wilt pathogen Ceratocystis albifundus* in South Africa and Uganda*. Plant Pathology* 54(2):189-195. 10.1111/j.1365-3059.2005.01144.x
Barnes I, Crous PW, Wingfield BD, Wingfield MJ. (2004) Multigene phylogenies reveal that red band needle blight of Pinus is caused by two distinct species of Dothistroma, D. septosporum and D. pini. Studies in Mycology 50:551-565.
Krokene P, Barnes I, Wingfield BD, Wingfield MJ. (2004) *A PCR-RFLP based diagnostic technique to rapidly identify Seiridium* species causing cypress canker*. Mycologia* 96(6):1352-1354.
Van Wyk M, Roux J, Barnes I, Wingfield BD, Chhetri DB, Kirisits T, Wingfield MJ. (2004) Ceratocystis bhutanensis sp. nov., associated with the bark beetle Ips schmutzenhoferi on Picea spinulosa in Bhutan. Studies in Mycology 50:365-379.
Van Wyk M, Roux J, Barnes I, Wingfield BD, Liew ECY, Assa B, Summerell BA, Wingfield MJ. (2004) Ceratocystis polychroma sp. nov., a new species from Syzygium aromaticum in Sulawesi. Studies in Mycology 50:273-282.
Barnes I, Roux J, Wingfield BD, O'Neill M, Wingfield MJ. (2003) Ceratocystis fimbriata infecting Eucalyptus grandis in Uruguay. Australasian Plant Pathology 32(3):361-366. 10.1071/AP03032
Barnes I, Roux J, Wingfield BD, Dudzinski MJ, Old KM, Wingfield MJ. (2003) Ceratocystis pirilliformis, a new species from Eucalyptus nitens in Australia. Mycologia 95(5):865-871.
Barnes I, Gaur A, Burgess T, Roux J, Wingfield BD, Wingfield MJ. (2001) Microsatellite markers reflect intra-specific relationships between isolates of the vascular wilt pathogen Ceratocystis fimbriata. Molecular Plant Pathology 2:319-325. 10.1046/j.1464-6722.2001.00080.x
Barnes I, Roux J, Wingfield MJ, Coetzee MPA, Wingfield BD. (2001) *Characterization of Seiridium* spp. associated with cypress canker based on β-tubulin and histone sequences*. Plant Disease* 85(3):317-321.