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Senior Lecturer

Department

Genetics
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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. 

 


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Publication
McTaggart AR, Shuey LS, Granados GM, du Plessis E, Fraser S, Barnes I, Naidoo S, Wingfield MJ, Roux J. (2017) Evidence that Austropuccinia psidii may complete its sexual life cycle on Myrtaceae. Plant Pathology 10.1111/ppa.12763
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 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 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 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 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 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
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 PDF
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 Lecanorticta 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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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 PDF
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. PDF
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 PDF
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. PDF
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. PDF
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. PDF
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. PDF
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 PDF
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. PDF
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 PDF
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. PDF