Ms Cassandra Schoeman

PhD student | |
Department |
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Biochemistry, Genetics and Microbiology |
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Research Profiles
My Supervisor/s
Primary Supervisor | |
Eshchar Mizrachi | |
Co Supervisor |
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Tuan Duong |
FABI has shaped my academic and research career since I first joined the institute as a postgraduate student in 2019. I joined the African Plant Systems Biology for the Bioeconomy (APSB) programme, led by Prof. Eshchar Mizrachi, in 2020, where my research has centered around the molecular and evolutionary basis of plant nutrient acquisition strategies in nutrient-impoverished environments.
My doctoral work investigates the convergent evolution of phosphorus-mining roots in three South African endemic species: Protea cynaroides (eudicot), Elegia tectorum, and Carex oshimensis (monocots). These specialised roots function by exuding organic acids into the soil to release phosphate that is otherwise bound in inaccessible metal complexes. Using transcriptomic analysis and genome assembly, my project aims to uncover the genetic networks involved in the development and function of these roots, and to determine whether distinct plant lineages have recruited similar molecular pathways to achieve the same adaptive outcome.
Previously, in the Forest Molecular Genetics (FMG) research group, also under the supervision of Prof. Eshchar Mizrachi, my research focused on the transcriptomic characterisation of the nitrogen-fixing cyanobacterial–cycad symbiosis, an ancient and ecologically significant relationship that allows these endemic gymnosperms to overcome nitrogen limitation.
Conferences
The evolution of phosphorous-mining roots in Fynbos angiosperms
C. B. Schoeman, T. A. Doung, P. M. Maistry, Y. Van de Peer & E. Mizrachi
UP 2024 Plant Genomics and Evolution Symposium
University of Pretoria
Pretoria, South Africa
2024
Oral presentation
Convergent co-option of plant nutrient and symbiosis genes in cycad-cyanobacterial symbioses
C. B. Schoeman, D. Roodt, D. Pinard, A. Blair, O. Bezuidt, T. Makhalanyane & E. Mizrachi
UP 2023 Plant Genome Evolution and Polyploidy Symposium
University of Pretoria
Pretoria, South Africa
2023
Oral presentation
The Encephalartos natalensis-cyanobacterial coralloid root partnership for nitrogen acquisition
C. B. Schoeman, D. Roodt, D. Pinard, A. Hammerbacher, T. Makhalanyane & E. Mizrachi
SASBi-SC/SAGS BIO2022 joint conference
Stellenbosch Institute for Advanced Study
Stellenbosch, South Africa
2022
Oral presentation

Scholarships
2022-2025: NRF-DAAD Doctoral Scholarship
2020-2021: UP Postgraduate Bursary for Masters and Doctoral students
2019: National Research Foundation (NRF) Grantholder-linked Bursary
My Journal Articles
Publication |
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Chang J, Duong TA, Schoeman C, Ma X, Roodt D, Barker N, Li Z, Van de Peer V, Mizrachi E. (2023) The Genome of the King Protea, Protea cynaroides. The Plant Journal 113:262-276.
10.1111/tpj.16044 |