Molecular Mapping and Validation of a Major QTL Conferring Resistance to a Defoliating Isolate of Verticillium Wilt in Cotton (Gossypium hirsutum L.)
文献类型： 外文期刊
作者： Zhang, Xingju 1 ; Yuan, Yanchao 1 ; Wei, Ze 1 ; Guo, Xian 1 ; Guo, Yuping 1 ; Zhang, Suqing 1 ; Zhao, Junsheng 2 ; Zhang, Guihua 3 ; Song, Xianliang 1 ; Sun, Xuezhen 1 ;
作者机构： 1.Shandong Agr Univ, State Key Lab Crop Biol, Agron Coll, Tai An, Shandong, Peoples R China
2.Shandong Acad Agr Sci, Cotton Res Ctr, Jinan, Shandong, Peoples R China
3.Heze Acad Agricultual Sci, Heze, Shandong, Peoples R China
期刊名称：PLOS ONE （ 影响因子：3.24； 五年影响因子：3.788 ）
ISSN： 1932-6203
年卷期： 2014 年 9 卷 4 期
页码：
收录情况： SCI
摘要： Verticillium wilt (VW) caused by Verticillium dahliae Kleb is one of the most destructive diseases of cotton. Development and use of a VW resistant variety is the most practical and effective way to manage this disease. Identification of highly resistant genes/QTL and the underlining genetic architecture is a prerequisite for developing a VW resistant variety. A major QTL qVW-c6-1 conferring resistance to the defoliating isolate V991 was identified on chromosome 6 in LHB22xJM11 F-2:3 population inoculated and grown in a greenhouse. This QTL was further validated in the LHB22xNNG F-2:3 population that was evaluated in an artificial disease nursery of V991 for two years and in its subsequent F-4 population grown in a field severely infested by V991. The allele conferring resistance within the QTL qVW-c6-1 region originated from parent LHB22 and could explain 23.1-27.1% of phenotypic variation. Another resistance QTL qVW-c21-1 originated from the susceptible parent JM11 was mapped on chromosome 21, explaining 14.44% of phenotypic variation. The resistance QTL reported herein provides a useful tool for breeding a cotton variety with enhanced resistance to VW.
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