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PhD Transfer Seminar for Oscar Nunez (Braeutigam Lab)

October 26, 2021 @ 3:00 pm - 3:30 pm

Sex expression and reproductive chromatin landscape in Populus  


Trees in the genus Populus (poplars) are of ecological and economic importance as key broadleaf species in temperate and boreal forests as well as wood and fibre crop in Canada and worldwide. It takes several years for poplars to develop sexual maturity and to produce either male or female flowers. Our recent findings uncovered a central regulator associated with a small sex determining region. The mechanisms leading to sex expression remain, however, elusive.

The goal of my research is to investigate the mechanisms underlying sex determination and to study the consequences of sex expression in this genus. First, I will develop a simple, fast, and reliable assay for sex determination at any stage of development. It will allow to investigate the relation between sex expression and plant responses to stressors and internal or external cues. Preliminary work further indicates a potential role for tight chromatin reorganization in poplar sex expression. Characterization of the reproductive chromatin landscape at various levels of resolution will provide new insights into to date underexplored developmental paths in these model trees.


Join Zoom Meeting


Meeting ID: 832 7303 1742

Host: Katharina Braeutigam (katharina.braeutigam@utoronto.ca)


October 26, 2021
3:00 pm - 3:30 pm