Molecular analysis of new sources of resistance to Pseudoperonospora cubensis (Berk. et Curt.) Rostovzev in cucumber

被引：19
|
作者：
Szczechura, W. [1 ]
Staniaszek, M. [1 ]
Klosinska, U. [1 ]
Kozik, E. U. [1 ]
机构：
[1] Inst Hort Res, PL-96100 Skierniewice, Poland
来源：
RUSSIAN JOURNAL OF GENETICS | 2015年 / 51卷 / 10期
关键词：
Cucumis sativus; Downy mildew; QTL mapping; DNA markes; disease resistance; DOWNY MILDEW; SATIVUS L; INHERITANCE; SPORANGIA; GENOME;
D O I：
10.1134/S1022795415090112
中图分类号：
Q3 [遗传学];
学科分类号：
071007 ; 090102 ;
摘要：
Downy mildew of cucumber (Cucumis sativus L.), caused by Pseudoperonospora cubensis (Berk. et Curt.) Rostovzev, is one of the most important foliar diseases of cucurbit crops. Two parental lines resistant PI 197085, susceptible PI 175695 and their F2 generation were used in our study. Inheritance of resistance to Pseudoperonospora cubensis in PI 197085 was quantitative. JoiMap 4.1 and MapQTL 6.0 software was used for a linkage groups construction and QTL mapping. Three QTL were detected: DM1, DM2, DM3. The loci were mapped on chromosome 5 of cucumber genome. Molecular analysis confirmed results of classical quantitative genetics indicating that resistance to Pseudoperonospora cubensis in PI 197085 is polygenic trait.
引用
收藏
页码：974 / 979
页数：6
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