Ms Cassandra Schoeman



PhD student

Department

Biochemistry, Genetics and Microbiology
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Research Profiles

Primary Supervisor
Eshchar Mizrachi

Co Supervisor
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.

 

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


2022-2025: NRF-DAAD Doctoral Scholarship

2020-2021: UP Postgraduate Bursary for Masters and Doctoral students

         2019: National Research Foundation (NRF) Grantholder-linked Bursary


Export to RIS
Publication
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