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《科学通报(英文版)》 2003-05
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Characterization and mapping of a white panicle mutant gene in rice

LI Hongchang1, QIAN Qian2, WANG Yun1,3, LI Xiaobo1, ZHU Lihuang1 & XU Jichen1 1. Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China; 2. China National Rice Research Institute, Hangzhou 310006, China; 3. Rice Research Institute, Sichuan Agriculture University, Chengdu 611130, China Correspondence should be addressed to Xu Jichen (e-mail: jcxu@ genetics.ac.cn)  
A spontaneous white panicle mutant was found from the F6 progenies of an indica/japonica cross. The mu-tant exhibits white stripes on its basal leaves while the pani-cles, rachis and pedicel are milky white colored at flowering stage. Genetic analysis in an F2 population from the cross of Zhi7/white panicle mutant indicates that the white panicle phenotype is controlled by a single recessive nuclear gene, tentatively termed as wp(t). Using microsatellite markers, the wp(t) gene was anchored between the markers of SSR101 and SSR63.9 with a map distance of 2.3 and 0.8 cM, respec-tively, and co-segregated with the marker of SSR17 on rice chromosome 1.
【Fund】: the73Project(Grant No. G1999011604)
【CateGory Index】: Q943
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