›› 2010, Vol. 22 ›› Issue (5): 558-563.

• 论文 • 上一篇    下一篇

番茄抗黄化曲叶病毒病基因的AFLP分子标记

姚金晓1,2, 杨悦俭2,*,叶青静2,王荣青2,阮美颖2,周国治2,姚祝平2
  

  1. 1浙江师范大学 化学与生命科学学院,浙江 金华 321004; 2 浙江省农业科学院 蔬菜研究所,浙江 杭州310021
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-09-25 发布日期:2010-09-25

Identification of AFLP markers linked to TYLCVD-resistance gene in tomato

YAO Jin-xiao;YANG Yue-jian;*;YE Qing-jing;WANG Rong-qing;RUAN Mei-ying;ZHOU Guo-zhi;YAO Zhu-ping   

  1. 1 College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China; 2 Institute of Vegetables, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-09-25 Published:2010-09-25

摘要: 用番茄抗黄化曲叶病毒病品系‘T0727’与高感黄化曲叶病毒病品系‘T9179’配制杂交组合,接种鉴定其F1代及F2代分离群体的黄化曲叶病毒病发生情况。用64对EcoRⅠ/MseⅠ引物组合对‘T0727’、‘T9179’两个亲本及其F1代和F2代抗病和感病基因池进行AFLP分析,共扩增出4 023条可分辨的条带,其中3条为稳定的差异。用‘T0727’和 ‘T9179’杂交产生的F2代分离群体对3个特异条带与目的基因的遗传连锁性进行分析,发现特异条带E-ACC/M-CAG与抗黄化曲叶病毒病基因紧密连锁,二者之间的遗传距离为9.5 cM。将E-ACC/M-CAG片段回收、克隆和测序,成功地将其转化为SCAR标记,暂定名为Afty-196,可以用于对番茄黄化曲叶病毒病基因的标记辅助选择。

关键词: 番茄, 番茄黄化曲叶病毒病, AFLP, SCAR

Abstract: F1 and F2 progeny of cross combination with TYLCVD-resistant tomato material T0727 and susceptible material T9179 were inoculated. With 64 EcoRⅠ/MseⅠ primer combinations, AFLP analysis was performed on two parents, their F1 and F2 resistant and susceptible bulks. A total of about 4 023 distinguishable bands were amplified, three of which were stable. Genetic linkage analysis of the three polymorphic DNA fragments with the resistance genes was tested in the F2 segregating population derived from the cross with T0727 and T9179. The DNA fragment E-ACC/M-CAG was found to be closely linked to one of the TYLCVD-resistant genes, with a genetic distance of 9.5 cM, which was tentatively named Afty-196. The cloned fragment E-ACC/M-CAG was sequenced and then successfully converted to a SCAR marker, which can be used in marker-assisted selection for tomato resistant to tomato yellow leaf curl virus disease.

Key words: tomato, Tomato yellow leaf curl virus disease (TYLCVD), AFLP, SCAR