Identification of superior haplotypes for seed protein content in pigeonpea (Cajanus cajan L.)

Jamedar, H V R and Gandham, P and Bajaj, P and Thati, S and Rao, V S and Varshney, R K and Saxena, R K (2024) Identification of superior haplotypes for seed protein content in pigeonpea (Cajanus cajan L.). Journal of Plant Biochemistry and Biotechnology, 33. pp. 178-188. ISSN 0971-7811

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Abstract

Pigeonpea (Cajanus cajan L.) is an important source of quality dietary protein for over a billion people worldwide. The seeds of pigeonpea contain approximately 20–22% digestible protein, which makes it a valuable source of nutrition. Despite this, there has been little attention paid to enhancing the seed protein content (SPC) through genetic means. Recently, high-protein germplasm lines have been discovered in the secondary gene pool, which presents an opportunity to breed for high-protein cultivars. To accelerate the breeding process, genomics-assisted breeding (GAB) can be utilized. In this context, this study identified the superior haplotypes for the genes that control SPC in pigeonpea. Whole-genome re-sequencing (WGRS) data from 344 pigeonpea genotypes were analyzed to identify the superior haplotypes for 57 SPC governing genes. A total of 231 haplotypes in 43 candidate genes were identified, and haplo-pheno analysis was performed to provide superior haplotypes for 10 genes. The identification of superior haplotypes and genotypes will greatly facilitate the development of protein-rich pigeonpea seeds through the application of haplotype-based breeding (HBB).

Item Type: Article
Divisions: Center of Excellence in Genomics and Systems Biology
CRP: UNSPECIFIED
Uncontrolled Keywords: Seed protein content (SPC), Genes, Haplotypes, Superior haplotypes
Subjects: Mandate crops > Pigeonpea
Others > Seeds/Seed Bank
Depositing User: Mr Nagaraju T
Date Deposited: 24 Jun 2024 05:27
Last Modified: 24 Jun 2024 05:27
URI: http://oar.icrisat.org/id/eprint/12721
Official URL: https://link.springer.com/article/10.1007/s13562-0...
Projects: UNSPECIFIED
Funders: UNSPECIFIED
Acknowledgement: RKV performed this study as a part of his International Agriculture for Food & Nutrition Security portfolio at Murdoch University and thanks Food Future Institute for supporting this study through a start-up grant. RKS acknowledges the research support from Department of Science and Technology (DST), Government of Gujarat and Gujarat Biotechnology University (GBU). HVRJ thank the funding support from Council of Scientific and Industrial Research (CSIR), Government of India, for the award of a research fellowship.
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