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Dr Andrew Plackett

Supervisor Details

Andrew Plackett

Contact Details

Dr Andy Plackett

School of Biosciences, University of Birmingham

 

Research Interests

My research group is focused on investigating the evolution of seed-based reproductive systems at the level of the genetic circuitry that controls them. Survivors of the older, seedless plant families from which seed-based reproduction arose are still alive today, the most closely related to all living seed-bearing plants being the ferns. However, to-date astonishingly little is known about the genetic pathways that control development and reproduction in seedless plants. Using new experimental tools in these seedless plant groups (such as genetic modification of the fern Ceratopteris richardii), we aim to compare genetic networks and gene functions between seedless and seed-bearing plant reproductive systems to identify what genetic changes took place during the origin of seed-bearing plants and how they have diversified since.

The lab is currently working on projects to compare the function of regulatory genes (transcription factors) found in both ferns and seed-bearing plants, where these genes have an important role in controlling reproduction in the model flowering plant Arabidopsis thaliana. Previously we found that the LEAFY floral regulator functions in vegetative development in ferns, suggesting that the genetic network controlling floral development first arose from a vegetative shoot. We are now focusing on the MADS-box genes, which in Arabidopsis act downstream of LEAFY to specify the identity of developing seeds and other floral organs.

Project Details

Dr Andy Plackett is supervising no projects this year.