Mapping QTLs for Alternaria blight in Linseed (Linum usitatissimum L.)

被引：3
|
作者：
Singh, Neha [1 ]
Kumar, Rajendra [2 ]
Kumar, Sujit [3 ]
Singh, P. K. [4 ]
Yadav, Hemant Kumar [1 ,5 ]
机构：
[1] CSIR, Natl Bot Res Inst, Rana Pratap Marg, Lucknow 226001, Uttar Pradesh, India
[2] Indian Agr Res Inst, New Delhi 110012, India
[3] Uttar Pradesh Council Agr Res UPCAR, Lucknow 226010, Uttar Pradesh, India
[4] Chandrashekhar Azad Univ Agr & Technol, Kanpur 208003, Uttar Pradesh, India
[5] Acad Sci & Innovat Res AcSIR, Ghaziabad 201002, India
来源：
3 BIOTECH | 2021年 / 11卷 / 02期
关键词：
Alternaria blight; RILs; SSRs; QTLs;
D O I：
10.1007/s13205-020-02638-y
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
A SSR-based linkage map of linseed constructed based on 154 individual lines of F-2 mapping population derived from JRF-4 (disease-resistant) and Chambal (disease susceptible) genotypes. QTLs for Alternaria blight and other yield related traits identified. Out of 1720 SSRs, 216 SSRs were found polymorphic among the parents but due to segregation distortion 18 SSRs could not be used for linkage map construction. Total 191 SSRs were used to construct the linkage map and distributed in 15 linkage groups covering genome length of 1802.4 cM. A total of 10 QTLs were identified for 4 phenotypic traits including 4 QTLs for capsules/plant, 2 for capsule weight/plant, 2 for seed weight/plant and 2 for Alternaria blight resistance. This study laid a foundation for further validation and fine mapping with more advance and large set of marker for different QTL identification and marker-assisted selection in linseed.
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页数：8
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