Authors
Vikas K Singh, Aamir W Khan, Rachit K Saxena, Vinay Kumar, Sandip M Kale, Pallavi Sinha, Annapurna Chitikineni, Lekha T Pazhamala, Vanika Garg, Mamta Sharma, Chanda Venkata Sameer Kumar, Swathi Parupalli, Suryanarayana Vechalapu, Suyash Patil, Sonnappa Muniswamy, Anuradha Ghanta, Kalinati Narasimhan Yamini, Pallavi Subbanna Dharmaraj, Rajeev K Varshney
Publication date
2016/5
Journal
Plant Biotechnology Journal
Volume
14
Issue
5
Pages
1183-1194
Description
To map resistance genes for Fusarium wilt (FW) and sterility mosaic disease (SMD) in pigeonpea, sequencing‐based bulked segregant analysis (Seq‐BSA) was used. Resistant (R) and susceptible (S) bulks from the extreme recombinant inbred lines of ICPL 20096 × ICPL 332 were sequenced. Subsequently, SNP index was calculated between R‐ and S‐bulks with the help of draft genome sequence and reference‐guided assembly of ICPL 20096 (resistant parent). Seq‐BSA has provided seven candidate SNPs for FW and SMD resistance in pigeonpea. In parallel, four additional genotypes were re‐sequenced and their combined analysis with R‐ and S‐bulks has provided a total of 8362 nonsynonymous (ns) SNPs. Of 8362 nsSNPs, 60 were found within the 2‐Mb flanking regions of seven candidate SNPs identified through Seq‐BSA. Haplotype analysis narrowed down to eight nsSNPs in seven genes. These …
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