Genetic analysis and gene mapping of a dominant presenescing leaf gene PSL3 in rice (Oryza sativa L.)  

作　　者：FANG LiKui LI YunFeng GONG XiaoPing SANG XianChun LING YingHua WANG XiaoWen CONG YunFei HE GuangHua 

机构地区：[1]Rice Research Institute, Key Laboratory of Biotechnology and Crop Quality Improvement, Ministry of Agriculture, Southwest University, Chongqing 400716, China

出　　处：《Chinese Science Bulletin》2010年第23期2517-2521,共5页

基　　金：supported by the National Natural Science Foundation of China (30871495);the New Century Project for Excellent Innovative Hu-mans of the Education Ministry of China, the Excellent Youth Foundation Project of Chongqing (2008BA1033);the Special Fund for Basic Scien-tific Research of Central Colleges,Southwest University (XDJK2009B019);China Postdoctoral Science Foundation (20080440608)

摘　　要：Leaf senescence as an active process is essential for plant survival and reproduction.However,premature senility is harmful to agricultural production.In this study,a rice mutant,named as psl3 (presescing leaf 3) isolated from EMS-treated Jinhui 10,displays obvious premature senility features both in morphological and physiological level.Genetic analysis showed that mutant trait was controlled by a single dominant gene (PSL3),which was located on rice chromosome 7 between SSR marker c7sr1 and InDel marker ID10 with an interval of 53.5 kb.The result may be useful for the isolation of the PSL3 gene.Leaf senescence as an active process is essential for plant survival and reproduction. However, premature senility is harmful to agricultural production. In this study, a rice mutant, named as psl3 （presescing leaf 3） isolated from EMS-treated Jinhui 10, displays obvious premature senility features both in morphological and physiological level. Genetic analysis showed that mutant trait was controlled by a single dominant gene （PSL3）, which was located on rice chromosome 7 between SSR marker c7sr1 and InDel marker ID10 with an interval of 53.5 kb. The result may be useful for the isolation of the PSL3 gene.

关 键 词：水稻叶片 遗传分析 基因定位 早衰 SSR标记 基因分离 叶片衰老 农业生产 

分 类 号：S511[农业科学—作物学] S562