作物染色体片段置换系构建的置换机制及遗传效应分析  

Substitution Mechanism and Genetic Effects Analysis of Chromosome Segment Substitution Lines in Crops

作　　者：杨德卫[1] 郑向华[1] 程朝平[1] 叶宁[1] 黄凤凰[1] 叶新福[1] Yang Dewei Zheng Xianghua Cheng Chaoping Ye Ning Huang Fenghuang Ye Xinfu(Institute of Rice, Fujian Academy of Agricultural Sciences, Fuzhou, 350019)

机构地区：[1]福建省农业科学院水稻研究所,福州350019

出　　处：《分子植物育种》2017年第1期271-278,共8页Molecular Plant Breeding

基　　金：福建省公益项目(2017R1101022-5;2015R1101015-7;2015R1021-10);福建省自然科学基金(2013J01109;2015J01108);福建省科技重大专项(2015NZ002-3-1)共同资助

摘　　要：作物染色体片段置换系群体是挖掘作物新资源、作物数量遗传研究和杂种优势利用等研究的理想工具,是作物遗传改良的重要遗传资源。因此,构建作物染色体片段置换系群体,对丰富作物遗传资源和作物生产发展具有十分重要的意义。本研究概括了作物染色体片段置换系构建的原理、特点以及分类,重点阐述了作物染色体片段置换系构建过程中置换的遗传机制和遗传效应,提出了该群体构建过程中存在的问题与研究展望。Chromosome segment substitution lines in crops are the most ideal tools for genetic research like excavating new resources, quantitative genetic studies and the utilization of heterosis, which are important genetic resources for genetic improvement of crops. Therefore, the construction of chromosome segment substitution lines is of great significance for enrichment of genetic resources and development of crop production. This research summarized the principle, characteristics and classification of chromosome segment substitution line in crops with the focus on their genetic mechanism and genetic effects, and proposed existing problems of the construction of chromosome segment substitution lines and the prospects.

关 键 词：作物 染色体片段置换系 遗传机制 遗传效应 

分 类 号：S188[农业科学—农业基础科学]