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Development and Evolution of Plant Architecture


Head : Yoan Coudert

Research summary :

A key aim in biology is to understand the mechanisms underpinning the evolution of form through time. In plants, form diversity mainly results from the varied branching patterns emerging from the coordinated activity of meristems at the shoot tips. An interplay between the hormones auxin, cytokinin and strigolactone, controls branching in flowering plants, a plant lineage that radiated about 150 million years ago. It has recently been evidenced that the same hormonal cues have been independently recruited, and integrated in a distinct manner, to regulate a convergent branch mechanism in mosses, extant representatives of the earliest land plants that evolved more than 400 million years ago.

Therefore, an ancient hormonal interplay provides a fundamental mechanism for branching control in distantly related plant species. However, it is still unknown how the same cues can generate the diversity of branching forms observed in nature.

My team investigates how this ancient hormonal interplay has been remodeled in evolution to generate architectural diversity in plants. We use mosses as model organisms in our research.

Yoan Coudert, Ph.D.
CNRS ATIP Research Fellow


Principal investigator :
Yoan Coudert, ATIP CNRS
16 rue Buffon - CP 39
75005 Paris
☏ :
Gladys Cloarec, Ingénieur
16 rue Buffon - CP 39 (...)

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