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Pigeonpea improvement: An amalgam of breeding and genomic research
Authors:Sameer Kumar Chanda Venkata,Ganga Rao Nadigatla Veera Prabha Rama,Rachit   K. Saxena,Kulbhushan Saxena,Hari D. Upadhyaya,Moses Siambi,Said N. Silim,Kothapally Narasimha Reddy,Anupama J. Hingane,Mamta Sharma,Shivali Sharma,Stephen Dominic Lyimo,Rose Ubwe,Meshack Makenge,Kananji Gad,Paul Kiprotich Kimurto,Manuel Amane,Kennedy Kanenga,Yuventino Obong,Emanuel Monyo,Chris Ojiewo,Nagesh Kumar Mallela Venkata,Jaganmohan Polineni Rao,Prashanthi Lakkireddy,Sudhakar Chourat,Indraprakash Singh,Sobhan Sajja,Shruthi Hirikara Beliappa,Rajeev K. Varshney
Abstract:In the past five decades, constant research has been directed towards yield improvement in pigeonpea resulting in the deployment of several commercially acceptable cultivars in India. Though, the genesis of hybrid technology, the biggest breakthrough, enigma of stagnant productivity still remains unsolved. To sort this productivity disparity, genomic research along with conventional breeding was successfully initiated at ICRISAT. It endowed ample genomic resource providing insight in the pigeonpea genome combating production constraints in a precise and speedy manner. The availability of the draft genome sequence with a large‐scale marker resource, oriented the research towards trait mapping for flowering time, determinacy, fertility restoration, yield attributing traits and photo‐insensitivity. Defined core and mini‐core collection, still eased the pigeonpea breeding being accessible for existing genetic diversity and developing stress resistance. Modern genomic tools like next‐generation sequencing, genome‐wide selection helping in the appraisal of selection efficiency is leading towards next‐generation breeding, an awaited milestone in pigeonpea genetic enhancement. This paper emphasizes the ongoing genetic improvement in pigeonpea with an amalgam of conventional breeding as well as genomic research.
Keywords:determinacy  genome sequence  hybrid technology  mini‐core collection  photo‐insensitivity  pigeonpea  trait mapping
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