水稻穗部簇生突变体(Cl-dz)的遗传分析与初步定位

福建农业学报 ›› 2012, Vol. ›› Issue (5): 481-484.

水稻穗部簇生突变体(Cl-dz)的遗传分析与初步定位

周鹏^1,2, 邓其明¹, 涂诗航², 郑家团², 李平¹

1. 四川农业大学水稻研究所, 四川成都 611130, ;
2. 福建省农业科学院水稻研究所, 福建福州 350019

收稿日期:2012-01-12 修回日期:2012-02-19 出版日期:2012-05-30 发布日期:2012-05-30
基金资助:
国家转基因生物新品种培育重大专项专题(2008ZX08009-001);福建省现代农业(水稻)产业技术体系(闽财指[2009]528)

Genetic Analysis and Gene Mapping of the Clustered Spikelets Mutant(Cl-dz)of Rice

ZHOU Peng^1,2, DENG Qi-ming¹, TU Shi-hang², ZHENG Jia-tuan², LI Ping¹

1. Rice Research Institute, Sichuan Agricultural University, Chengdu, Sichuan 611130, China;
2. Rice Research Institute, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian 350019, China

Received:2012-01-12 Revised:2012-02-19 Online:2012-05-30 Published:2012-05-30

摘要/Abstract

摘要： 从水稻育种材料后代中获得1个受隐性单基因控制的簇生穗突变体(Cl-dz)。其表型特征为:在二次枝梗顶端有2~3个小穗簇生在一起,呈"W"形态。遗传分析表明该性状是受单基因控制的隐性性状。利用突变体Cl-dz与保持系冈46杂交构建F₂定位群体,将该基因定位在6号染色体的SSR标记RM6036与RM1340之间,遗传距离分别为3.6cM和7.0cM。

关键词: 簇生穗, 遗传分析, 基因定位, SSR标记

Abstract: A clustered spikelets mutant(Cl-dz) controlled by single recessive gene was found in the progeny of a rice breeding material, its phenotype characteristic was that 2 or 3 spikelets cluster on the second stem in the shape of "W". Genetic analysis indicated that the trait was a recessive trait genetically controlled by single gene. The F₂ mapping population was constructed by hybridization between mutant Cl-dz and G46. And the gene Cl-dz was mapped between SSR markers, RM6036 and RM1340 in chromosome 6 of rice. The genetic distance was 3.6 cM and 7.0 cM, respectively.

Key words: clustered spikelets, genetic analysis, gene mapping, SSR marker

中图分类号:

S435

周鹏, 邓其明, 涂诗航, 郑家团, 李平. 水稻穗部簇生突变体(Cl-dz)的遗传分析与初步定位[J]. 福建农业学报, 2012, (5): 481-484.

ZHOU Peng, DENG Qi-ming, TU Shi-hang, ZHENG Jia-tuan, LI Ping. Genetic Analysis and Gene Mapping of the Clustered Spikelets Mutant(Cl-dz)of Rice[J]. Fujian Journal of Agricultural Sciences, 2012, (5): 481-484.

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