Dr. Amal J. Johnston Department of Molecular Genetics Leibniz Institute of Plant Genetics (IPK) Gatersleben, Germany

2009年07月01日(水) 13:00 より 14:00 まで

明大寺地区１階会議室（１１１）

長谷部分化全能性進化プロジェクト 榊原恵子 内線7600

The plant life cycle switches between two distinct multi-cellular generations, the haploid gametophytes and the diploid sporophyte. Little is known about how generation-specific development is controlled by the core regulators of the cell cycle. I will present data from diploid and tetraploid Arabidopsis mutants that lack RETINOBLASTOMA RELATED (RBR) to explain how RBR genetically interacts with certain convergent epigenetic factors to control differentiation and development of the gametophyte and the sporophyte. Distinct modules of a convergent epigenetic network involving RBR might represent independent mechanisms that operated during the evolutionary shift between gametophytic and sporophytic generations in plants.