Identification and Genetic Mapping of a Lesion Mimic Mutant in Rice

查看全文 作　　者：MA Jian-[1,2]yang;CHEN Sun-[2,3]lu;ZHANG Jian-[1,2]hui;DONG Yan-[1]jun;TENG [2]Sheng

机构地区：[1]Laboratory of Plant Genetics and Functional Gene, College of Life and Environment Science, Shanghai Normal University, Shanghai 200234, China;;[2]Institute of Plant Physiology & Ecology, Shanghai lnstitute Jor Biological Sciences, Chinese Academy of Sciences, Shanghai 200032, China;;[3]National Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing 210095, China

出　　处：《Rice science》索引2012年第19卷第1期,共7页

基　　金：supported by the National Basic Research Program of China (Grant No. 2009CB119000);the National Science Foundation of China (Grant Nos.31000094,31100188 and 30970246) 摘　　要：A lesion mimic stripe mutant,designated as lms1(lesion mimic stripe 1),was obtained from the M2 progeny of a 60Co γ-radiation treated japonica rice variety Jiahua 1.The lms1 mutant displayed propagation type lesions across the whole growth and developmental stages.Physiology and histochemistry analysis showed that the mutant exhibited a phenotype of white stripe when grown under high temperature(30 ℃),and the lesion mimic caused by programmed cell death under low temperature(20 ℃).The genetic analysis indicated that this lesion-mimic phenotype is controlled by a single locus recessive nuclear gene.Furthermore,by using simple sequence repeat markers and an F2 segregating population derived from two crosses of lms1 × 93-11 and lms1 × Pei'ai 64S,the lms1 gene was mapped between markers Indel1 and MM0112-4 with a physical distance of 400 kb on chromosome 6 in rice. 关键词：遗传分析突变体病变模仿映射水稻程序性细胞死亡鉴定

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Identification and Genetic Mapping of a Lesion Mimic Mutant in Rice

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