报告题目: Plant breeding in the post-genomics era

报告人: Dr. Changbin Chen, University of Minnesota

主持人: 李宏庆 教授

报告时间: 9月23日 9:30 （周五上午）

报告地点: 天美娱乐534报告厅

 

报告人简介：Dr. Changbin Chen, Plant Cytogenetics and Tomato Breeding Laboratory, Department of Horticultural Science, University of Minnesota, USA.

 

Education:

Ph.D. Chinese Academy of Sciences Shanghai Institute of Plant Physiology & Ecology joint East China Normal University, China, 1999, Plant Biology (Plant Molecular Genetics)

M.S. East China Normal University, China, 1992, Plant Biology (Plant Systematics & Diversity)

B.S. Hubei University, China, 1989, Biology

 

Research Areas:

Meiosis; Plant Cytogenetics; Medicinal Plants; Tomato Breeding.

 

报告内容：

Advancement of sequencing techniques in the past two decades has significantly speeded the plant genomics study, resulting in more and more plant genomes being deciphered. For general public, there has been a confusion between plant breeding and biotechnology, especially with more and more plant species and traits being sequenced. The difference between plant breeding and biotechnology is the way plants are improved: in breeding, novel and better traits (combinations of existing genes) in a crop are created by crossing plants together; biotechnology, however, creates novel phenotypes through directly inserting key genes into a plant genome or editing key genes of a plant genome. One of the genetic barriers for genetically modified plants is gene silencing through plant reproductive process. Recombination and other mechanisms proven expression and inheritance of exogenous gene. Using model plant systems, we have discovered a novel germ-cell specific organelle, G-body, and recombination associated posttranscriptional regulatory mechanisms. Here, we discuss how the new findings will impact future crop improvement.