https://www.ahs.ac.cn/images/0513-353X/images/top-banner1.jpg|#|苹果
https://www.ahs.ac.cn/images/0513-353X/images/top-banner2.jpg|#|甘蓝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner3.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner4.jpg|#|灵芝
https://www.ahs.ac.cn/images/0513-353X/images/top-banner5.jpg|#|桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner6.jpg|#|黄瓜
https://www.ahs.ac.cn/images/0513-353X/images/top-banner7.jpg|#|蝴蝶兰
https://www.ahs.ac.cn/images/0513-353X/images/top-banner8.jpg|#|樱桃
https://www.ahs.ac.cn/images/0513-353X/images/top-banner9.jpg|#|观赏荷花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner10.jpg|#|菊花
https://www.ahs.ac.cn/images/0513-353X/images/top-banner11.jpg|#|月季
https://www.ahs.ac.cn/images/0513-353X/images/top-banner12.jpg|#|菊花

园艺学报 ›› 2011, Vol. 38 ›› Issue (12): 2297-2308.

• 蔬菜 • 上一篇    下一篇

番茄疮痂病菌T3小种抗性的QTL分析

孙会军1,张洁云1,王园园1,Scott Jay W.2,Francis David M.3,杨文才1,*   

  1. (1中国农业大学农学与生物技术学院蔬菜系,北京 100193;2佛罗里达大学园艺科学系,FL 32611,USA;3俄亥俄州立大学园艺与作物科学系,OH 44691,USA)
  • 收稿日期:2011-09-21 修回日期:2011-11-18 出版日期:2011-12-25 发布日期:2011-12-25
  • 通讯作者: 杨文才

QTL Analysis of Resistance to Bacterial Spot Race T3 in Tomato

SUN Hui-jun1,ZHANG Jie-yun1,WANG Yuan-yuan1,SCOTT Jay W.2,FRANCIS David M.3,and YANG Wen-cai1,*   

  1. (1Department of Vegetable Science,College of Agriculture and Biotechnology,China Agricultural University,Beijing 100193,China;2Department of Horticultural Sciences,University of Florida,FL 32611,USA;3Department of Horticulture and Crop Science,The Ohio State University,OH 44691,USA)
  • Received:2011-09-21 Revised:2011-11-18 Online:2011-12-25 Published:2011-12-25
  • Contact: YANG Wen-cai

摘要: 利用由抗番茄细菌性疮痂病菌T3小种材料PI114490构建的回交自交群体分析其抗性遗传规律,鉴定与抗性连锁的分子标记。从516个SSR、SNP和InDel标记中筛选到72个在亲本之间有多态性的标记。单标记分析结果显示,PI114490对T3小种的抗性由分布于1、3、8和11号染色体上的多个QTL控制,其中11号染色体上的QTL能提供高达56.5%的抗性;分析各回交自交系的基因型发现,这些QTL之间可能存在互作。这为进一步研究PI114490对T3小种的抗性机理和抗病育种提供了参考依据。

关键词: 番茄, 回交自交群体, 细菌性疮痂病, T3抗性, QTL

Abstract: The objective of this study was to understand genetics of resistance and identify molecular markers tightly linked to the resistance to race T3 using an inbred-backcross population derived from the resistant line PI114490. A core set of 516 SSR,SNP,and InDel markers was screened for polymorphisms among the parents of the IBC population,and 72 polymorphic markers were identified. Single marker-trait analysis suggested that the resistance to race T3 in PI114490 was mediated by multiple QTLs on chromosomes 1,3,8 and 11. One QTL on chromosome 11 could contribute 56.5% of phenotypic variation. Genotypic analysis of inbred-backcross lines suggested that interactions among QTLs might exist. These results provide some fundamental information for understanding the mechanism of resistance to race T3 in PI114490 and breeding for resistance.

Key words: tomato, inbred-backcross population, bacterial spot, T3 resistance, QTL

中图分类号: