第六期水木清华生命科学讲座系列
YONGBIAO XUE, Ph.D.
Director and Principle Investigator
Institute of Genetics and Developmental Biology
Chinese Academy of Sciences
REASEARCH INTERESTS
Two major areas: Molecular mechanisms of pollen -pistil interaction in flowering plants, focusing on the S-RNase-based self -incompatibility (SI) and molecular identification of rice agronomic important genes using genetic - and genomics –based approaches.
EDUCATION
1983 BSc (Zoology), Lanzhou University, Lanzhou, China
1986 MSc (Developmental Biology), Institute of Developmental Biology and the Graduate School, Chinese Academy of Sciences, Beijing, China
1989 PhD (Plant Molecular Biology), John Innes Institute and University of East Anglia, Norwich, UK (Supervisor Prof D. R. Davies )
ASSOCIATIONS AND FELLOWSHIPS
1987 University Studentship, University of East Anglia, Norwich, UK
1987 Overseas Research Student Awards, University of East Anglia, Norwich, UK
1995 K.C. Wang Fellowship, Chinese Academy of Sciences, Beijing, China
2009 Vice President and General Secretary, the Genetics Society of China
2010 Vice President, the Crop Science Society of China
AWARDS
2007, National Natural Science Prize of China (Two Silvers )
Topic：显花植物的“枕边话”：核酸酶类自交不亲和性的分子机制
Abstract:
自交不亲和性（Self-incompatibility，SI）是显花植物中广泛存在的一种促进异交抑制自交的种内生殖障碍，因此对于显花植物的遗传多样性的维系具有非常重要的生物学意义。在多数显花植物中，SI受控于一个由复等位基因构成的遗传位点称为S-位点。在茄科、车前科和蔷薇科植物中，已经发现该位点编码了S-核酸酶和SLF（含F-box结构域蛋白）两类蛋白，分别控制了花柱和花粉自交不亲和性的表达。但是，它们如何作用抑制自交和促进的分子机制有待深入研究。我们前期的工作表明SLF可以形成一类典型的SCF（Skp1/Cullin/F-box）E3泛素连接酶复合体，而且可以对异己S-核酸酶降解从而促进异交。本报告将介绍我们实验室相关的最新进展，探讨自交不亲和显花植物促进异交和抑制自交的分子机制。
Date: 4:00-5:00pm, Apr. 11(Thursday)
Venue: 143, New Biology Building
