Fine Mapping of the Ph-2 Gene Conferring Resistance to Late Blight (Phytophthora infestans) in Tomato

文献类型： 外文期刊

第一作者： Zhi, Xiaona

作者： Zhi, Xiaona;Shu, Jinshuai;Li, Tao;Sun, Xiaorong;Bai, Jinrui;Cui, Yanan;Wang, Xiaoxuan;Huang, Zejun;Guo, Yanmei;Du, Yongchen;Yang, Yuhong;Liu, Lei;Li, Junming;Zheng, Zheng

作者机构：

关键词： candidate genes; fine mapping; late blight; Ph-2; tomato

期刊名称：PLANT DISEASE （ 影响因子：4.438； 五年影响因子：4.7 ）

ISSN： 0191-2917

年卷期： 2021 年 105 卷 4 期

页码：

收录情况： SCI

摘要： Late blight is a devastating tomato disease. Breeding new varieties with multiple resistance (R) genes is highly effective for preventing late blight. The Ph-2 gene mediates resistance to Phytophthora infestans race T-1 in tomato. In this study, we used an F-2 population derived from a cross between Solanum lycopersicum Moboline (resistant) and LA3988 (susceptible) cultivars for the fine mapping of Ph-2. Two flanking markers, CAPS-1 and CC-Ase, mapped Ph-2 to a 141-kb genomic region containing 21 projected genes, 5 of which were identified as putative R genes. The Solyc10g085460 coding sequence varied significantly between the parents. The markers developed and candidate genes identified in this study shall be useful for the molecular breeding of tomato exhibiting increased late blight resistance and for the cloning of the Ph-2 gene.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序