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10 June 2020 | Story Leonie Bolleurs | Photo Supplied
Prof Zakkie Pretorius, left, plays a significant role in providing pathology support to the plant breeding industry.Prof Liezel Herselman contributes to plant breeding in Southern Africa by training and mentoring the plant breeders of the future.

The Southern African Plant Breeders’ Association (SAPBA) recently bestowed prestigious awards upon Prof Zakkie Pretorius, Research Fellow in the Department of Plant Sciences at the University of the Free State (UFS), and Prof Liezel Herselman, Associate Professor in the same department. This institution strives to maintain high ethical standards and norms, contributing to stable, sustainable agriculture.

During the 13th Southern African Plant Breeders’ Association symposium, Prof Herselman was presented with a Fellow Award and Prof Pretorius with Honorary Membership. They received the awards for their services to and promotion of the SAPBA objectives, together with their exceptional contributions to plant breeding. 

Provide food for the nation
Over the years, Prof Pretorius, who has extensive expertise in diseases of field crops – more specifically the rust diseases of small grain cereal crops – has played a significant role in providing pathology support to the plant breeding industry. He has also conducted ground-breaking pathology research on rust diseases in field crops. In 2019, he co-authored an article that appeared in Nature, the world’s leading multidisciplinary science journal. He is also shortlisted as a 2020 finalist in the Lifetime Award and Special Theme Award (Plant Health) of the National Science and Technology Forum. Furthermore, he regularly attended and participated in biennial conferences and supervised plant breeding students working on plant disease projects. 

Prof Herselman contributes to plant breeding in Southern Africa by training and mentoring the plant breeders of the future. “As a lecturer of fourth-year and honours Plant Breeding students, as well as supervisor and promoter of master’s and doctoral students, I am in the fortunate position to teach and mentor my students in one of the newest fields of plant breeding, namely marker-assisted plant breeding. All future plant breeders need this knowledge to make a success of their breeding programmes. Our students are the future plant breeders who will provide food to the nation,” she says. 

"As a plant pathologist, I am privileged to have been able to contribute to the quest for disease resistance in crop improvement and to have been recognised for it.” – Prof Zakkie Pretorius
The highest honour
Prof Pretorius view recognition by the industry – in this case, the plant breeding fraternity – as the highest honour for someone working in agricultural science. “As a plant pathologist, I am privileged to have been able to contribute to the quest for disease resistance in crop improvement and to have been recognised for it. I am also extremely grateful to colleagues and co-workers who have contributed over many years to the establishment of a productive and influential research group at the UFS,” he says.

Prof Herselman shares this sentiment. She says: “It means so much to me to know that I have made a difference and an impact on my students’ lives. It is a privilege to have the opportunity to work with under- and postgraduate students and to see them grow.”

She continues: “We strive to send out well-rounded students who can make a difference in the workplace and the community. This award means that I have succeeded in this goal, even though I do my work because I am passionate about it and not to receive recognition.”

Fight against fungal disease continues
Prof Pretorius continues to be involved in studies on host plant resistance and pathogenic variability. 

As a molecular plant breeder, Prof Herselman is pushing on with research focusing on the development of wheat lines with improved disease resistance. The work that she is doing makes a difference on both national and international level. “As part of my current research programme, we have made rust- and Fusarium head blight-resistant wheat lines available to South African breeding companies for use in their breeding programmes. The lines developed at the UFS will in a small way contribute towards the fight against fungal diseases in South Africa, thus securing the yield and livelihoods of farmers and consumers,” she says.

Her master’s and doctoral students who have completed their studies, also take the knowledge they gained at the UFS back to their countries and workplaces where they ultimately add value, especially contributing towards the fight against hunger. 

"“We strive to send out well-rounded students who can make a difference in the workplace and the community. This award means that I have succeeded in this goal, even though I do my work because I am passionate about it and not to receive recognition.” – Prof Liezel Herselman

News Archive

Newly operational sequencing unit in genomics at UFS
2016-09-09

Description: Next Generation Sequencing  Tags: Next Generation Sequencing

Dr Martin Nyaga and his research assistant,
Tshidiso Mogotsi in the Next Generation
Sequencing Laboratory.
Photo: Charl Devenish

The Next Generation Sequencing (NGS) unit at the UFS was established as an interdisciplinary facility under the Directorate for Research Development, Faculty of Health Sciences and Faculty of Natural and Agricultural Sciences.

The aim of the NGS facility is to aid internal and external investigators undertaking studies on Deoxyribonucleic acid (DNA) sequencing, assembly and bioinformatics approaches using the more advanced Illumina MiSeq NGS platform.

The NGS unit became operational in 2016 and is managed by Dr Martin Nyaga and administered through the office of the Dean, Faculty of Health Sciences, under the leadership of Prof Gert Van Zyl. Dr Nyaga has vast experience in microbial genomics, having done his PhD in Molecular Virology.

He has worked and collaborated with globally recognised centres of excellence in Prokaryotic and Eukaryotic genomics, namely the J. Craig Venter Institute and the Laboratory of Viral Metagenomics, Rega Institute, among others.

The unit has undertaken several projects and successfully generated data on bacterial, viral and human genomes. Currently, work is ongoing on bacterial and fungal metagenomics studies through 16S rRNA sequencing.

In addition, the unit is also working on plasmid/insert sequencing and whole genome sequencing of animal and human rotaviruses. The unit has capacity to undertake other kinds of panels like the HLA, Pan-cancer and Tumor 15 sequencing, among others.

Several investigators from the UFS including but not limited to Prof Felicity Burt, Prof Wijnand Swart, Dr Frans O’Neil, Dr Trudi O'Neill, Dr Charlotte Boucher, Dr Marieka Gryzenhout and Dr Kamaldeen Baba are actively in collaboration with the NGS unit.

The unit has also invested in other specialised equipment such as the M220 Focused-ultrasonicator (Covaris), 2100 Bioanalyzer system (Agilent) and the real-time PCR cycler, the Rotor-Gene Q (Qiagen), which both the UFS and external investigators can use for their research.

Investigators working on molecular and related studies are encouraged to engage with Dr Nyaga on how they would like to approach their genomics projects at the UFS NGS unit. 

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