Chinese Journal of Rice Science ›› 2011, Vol. 25 ›› Issue (6): 681-684.DOI: 10.3969/j.issn.10017216.2011.06.018

• Short Communications • Previous Articles    

QTL Analysis of  Cold Tolerance  in Japonica Rice Using  Recombinant Inbred Lines  from  02428×02428c at Booting Stage 

XIE Yongwu 1,2,3 , YANG Shuming 1,* , ZENG Yawen 1,* , YANG Tao 1 , PU Xiaoying 1 , DU Juan 1 , ZHAO Chunyan 2 , ZHANG Mingxi 4   

  1. 1 Biotechnology and Genetic Resources Institute, Yunnan Academy of Agricultural Sciences, Kunming  650205, China; 2 College of Agronomy, Yunnan Agricultural University, Kunming 650201, China; 3 Kunming  and Tiankang Science  and Technology Limited Company, Kunming 650231, China; 4 School of Life Science, Yunnan University, Kunming 650091, China;
  • Received:2010-12-29 Revised:2011-01-10 Online:2011-11-10 Published:2011-11-10
  • Contact: YANG Shuming1,*, ZENG Yawen1,*

粳稻02428×02428c重组自交系孕穗期耐冷性QTL分析

谢勇武1,2,3杨树明1,*曾亚文1,*杨涛1普晓英1 杜娟1赵春艳2张明喜4   

  1. 1云南省农业科学院 生物技术与种质资源研究所, 云南  昆明 650205; 2 云南农业大学  农学院, 云南  昆明650201;  3 昆明田康科技有限公司, 云南  昆明650231; 4 云南大学 生命科学学院,  云南  昆明 650091
  • 通讯作者: 杨树明1,*曾亚文1,*
  • 基金资助:

    国家自然科学基金资助项目(31060186);云南省自然科学基金资助项目(2010CD006);云南省重点新产品开发计划资助项目(2010BB001);昆明市创新型试点企业项目(昆科计字10N060204号)。

Abstract: A coldsensitive  japonica  rice variety 02428  and a coldresistant  rice variety 02428c  were used as parents to produce an F5:6 population composed of 336 recombinant inbred lines.  Numbers of  filled grains, unfilled grains, total grains and seedsetting rate  were measured as phenotypic values  for  evaluating cold tolerance at the booting stage.   A genetic linkage map  was  constructed with 486 SSR markers for QTL mapping. The markers  RM6092, RM6702, RM5954, RM1095, RM1183, RM7643 and RM3411 were linked to the cold tolerance at the booting stage. Three  QTLs controlling cold tolerance at the booting stage were identified on the chromosome 1 with  QTLMapper 1.6.

Key words: recombinant inbred line, cold tolerance, booting stage, microsatellite marker, quantitative trait locus

摘要: 利用孕穗期弱耐冷性品种02428和强耐冷性品种02428c构建了一个包含336个株系的F5:6重组自交系群体。采用自然低温冷害鉴定法,以实粒数、秕粒数、总粒数和结实率作为孕穗期耐冷性状的表型值,用486对SSR标记初步构建分子连锁图谱,对孕穗期耐冷性进行QTL定位。结果表明,标记RM6092、RM6702、RM5954、RM1095、RM1183、RM7643及RM3411与孕穗期耐冷性状连锁;利用QTLMapper 1.6软件检测到位于第1染色体上的3个耐冷性QTL位点。

关键词: 重组自交系; 孕穗期, 耐冷性; 微卫星标记; 数量性状基因座

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