核农学报2017，Vol.31Issue(11)：2096-2102,7.DOI:10.11869/j.issn.100-8551.2017.11.2096
水稻叶色突变体ygr的遗传分析与基因定位
Genetic Analysis and Gene Mapping of Rice Leaf Color Mutant ygr
摘要
Abstract
Leaf color mutant was an ideal material for studying chloroplast development,photosynthetic pigment synthesis and degradation in rice.In the early study,a green revertible leaf color mutants ygr was obtained from extened propagation of rice maintainers.In order to clarify the leaf color regulation mechanism,the main agronomic traits and photosynthetic pigment content of ygr were compared with wild type,and genetic analysis and gene mapping of this mutant were conducted in this study.The results showed that initial heading stage of ygr was delayed by 2 days compared to the wild type,and the plant height,the no.of effective panicles per plant,the panicle length,the no.of grains per panicle,seed setting rate and 1 000 grain weight were similar with the wild type.Genetic analysis showed that the leaf color mutant traits of ygr were controlled by a single recessive nuclear gene,and was temporarily named YGR.With the F2 population developed from the cross between ygr and the green leaf variety Nipponbare,the YGR gene was mappled between WY8 and WY20,and the genetic distances were 0.2 cM and 0.5 cM,respectively.This study laid the foundation for futher cloning and functional analysis of this gene and to analyse the mutation mechanism.关键词
水稻/叶色突变体/遗传分析/基因定位Key words
rice/leaf color mutant/genetic analysis/gene mapping引用本文复制引用
方希林,杨漫,王鑫,黄沆,肖楠,贺治洲,王悦..水稻叶色突变体ygr的遗传分析与基因定位[J].核农学报,2017,31(11):2096-2102,7.基金项目
国家自然科学基金(31301650),湖南省自然科学基金(2017JJ3113),湖南省教育厅优秀青年项目(16B127) （31301650）
