Genetic Analysis and Gene Mapping of Light Brown Spotted Leaf Mutant in Rice

查看全文 作　　者：FENG Bao-[1]hua;YANG [1,2]Yang;SHI Yong-[1]feng;LIN [3]Lu;CHEN [1]Jie;WEI Yan-[1,2]lin;Hei [4]LEUNG;WU Jian-[1]li

机构地区：[1]State Key Laboratory of Rice Biology/Chinese National Center for Rice Improvement,China National Rice Research Institute;[2]College of Life and Environmental Sciences,Hangzhou Normal University;[3]College of Life Sciences,Anhui Normal University;[4]International Rice Research Institute,DAPO Box 7777 Metro Manila,Philippines

出　　处：《Rice science》索引2013年第20卷第1期,共6页

基　　金：supported by the State Key Laboratory of Rice Biology (Grant No. ZZKT200801);the National High Technology Research and Development Program of China (Grant No. 2011AA10A101);Central Public Interest Research Institute Special Fund in China (Grant No. 2009RG001-2) 摘　　要：A light brown spotted-leaf mutant of rice was isolated from an ethane methyl sulfonate (EMS)- induced IR64 mutant bank. The mutant, designated as lbsl1 (light brown spotted-leaf 1), displayed light brown spot in the whole growth period from the first leaf to the flag leaf under natural summer field conditions. Agronomic traits including plant height, growth duration, number of filled grains per panicle, seed-setting rate and 1000-grain weight of the mutant were significantly affected. Genetic analysis showed that the mutation was controlled by a single recessive gene, tentatively named lbsl1(t), which was mapped to the short arm of chromosome 6. By developing simple sequence repeat (SSR) markers, the gene was finally delimited to an interval of 130 kb between markers RM586 and RM588. The lbsl1(t) gene is likely a novel rice spotted-leaf gene since no other similar genes have been identified near the chromosomal region. The genetic data and recombination populations provided will facilitate further fine-mapping and cloning of the gene. 关键词：基因定位遗传分析突变体水稻每穗实粒数色斑简单重复序列甲基磺酸盐

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Genetic Analysis and Gene Mapping of Light Brown Spotted Leaf Mutant in Rice

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