Principal Investigator: Prof Dave Berger

Current team members at UP: Dr Boney Kuriakose, Dr Sonia Phillips , Dr Maryke Carstens, Jeanne Korsman, Nanette Coetzer, Adri Veale, Grieta Mahlangu, Monique Heystek, Thomas Schmidt, Ncobile Kunene, Irene Schoeman.

The project aims to identify genes and molecular markers linked to quantitative resistance to grey leaf spot disease in African maize varieties. The innovation is to combine classical quantitative genetic analysis, genetic mapping and global gene expression profiling. The power of including expression profiling using oligonucleotide microarrays is that it facilitates the identification of genes contributing to QTL for GLS resistance. Candidate genes and/or tightly linked molecular markers will be of enormous value to maize breeders for use in marker assisted selection of resistance traits. This project combines the skills of a number of experts in South Africa, and is one of the first expression QTL projects in the country. Establishing capacity in this technique will enable future work on additional favourable traits in crops for which global gene expression data are available.

 

Cercospora zeina cultures with emphasis on the conidiophores and conidia

 

Maize eQTL project team

 
 
 
 

Collaborators

 

 

MeQTL project field trip

 

Standing L - R: Felix Middelton (PANNAR), Monique Heystek (UP), Thomas Schmidt (UP), Mischa Muller (UP), Dave Berger (UP), Hlandiwe Gumede (UKZN ACCI)

Seated L - R: Shane Murray (CPGR), Bridget Crampton (UP)

 


Publications:

  • Korsman J, Meisel B, Kloppers FJ, Crampton BG and Berger DK (2012) Quantitative phenotyping of grey leaf spot disease in maize using real-time PCR. European Journal of Plant Pathology, 133(2) 461-471

  • Coetzer N, Myburg AA & D K Berger (2011) Maize Microarray Annotation Database. Plant Methods 7:31.

  • Meisel B, Korsman J, Kloppers FJ and Berger DK (2009) Cercospora zeina is the causal agent of grey leaf spot disease of maize in southern Africa. European Journal of Plant Pathology, 124 (4) 577-583.

 

New Publications

Human MP, Berger DK, Crampton BG. (2020) Time-course RNAseq reveals Exserohilum turcicum effectors and pathogenicity determinants. Frontiers in Microbiology 11(360) 10.3389/fmicb.2020.00360
Welgemoed T, Pierneef R, Sterck L, Van de Peer Y, Swart V, Scheepers KD, Berger DK. (2020) De novo assembly of transcriptomes from a B73 maize line introgressed with a QTL for resistance to gray leaf spot disease reveals a candidate allele of a lectin receptor-like kinase. Frontiers in Plant Science http://bit.ly/2SmKPmT
Devnarain N, Crampton BG, Olivier N, van der Westhuizen C, Becker JVW, O'Kennedy MM. (2019) Transcriptomic analysis of a Sorghum bicolour landrace identifies a role for beta-alanine betaine biosynthesis in drought tolerance.. South African Journal of Botany 127 10.1016/j.sajb.2019.08.049
Zumaquero A, Martinez-Ferri E, Matas AJ, Reeksting B, Olivier NA, Pliego-Alfaro F, Barcelo A, van den Berg N, Pliego C. (2019) Rosellinia necatrix infection induces differential gene expression between tolerant and susceptible avocado rootstocks. PLoS ONE 14(2):e0212359. 10.1371/journal.pone.0212359
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