Development of a Cajanus cajanifolius-based CMS Hybrid Technology in Pigeonpea

Srivastava, R K and Saxena, K B and Kumar, R V (2018) Development of a Cajanus cajanifolius-based CMS Hybrid Technology in Pigeonpea. Journal of Crop Science and Biotechnology, 21 (5). pp. 443-449. ISSN 1975-9479

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Abstract

Pigeonpea is an important food legume of the semi-arid tropics grown mainly under subsistence agriculture. As a first step to address the five decades-long yield stagnation, a proof-of-concept for a commercially viable CMS-based hybrid technology with high standard heterosis and fertility restoration has been demonstrated. Six generations of backcrossing and selection for male sterility, and agronomic superiority using a Cajanus cajanifolius- (A4 cytoplasm) based CMS donor (ICPA 2039) and a medium-maturity group recurrent parent ICPL 20176 (ICPB 2043) which resulted in a stable male sterile line (ICPA 2043) with near-perfect male sterility and superior agronomic traits. Following backcrossing and selections, the A-line (ICPA 2043) appeared to be morphologically similar in terms of various qualitative and quantitative traits compared to the B-line (ICPB 2043). However, differences between ICPA 2043 and ICPB 2043 were observed for days to maturity, 100-seed weight, pods plant-1, and seed weight plant-1. These differences may not be genetic but physiological. The best heterotic restorer line selected in a cross (ICPH 2671) combination restored a mean of 96.49% male fertility in 36 environments (12 locations, 3 years). Present investigation did not reveal significant G×E interaction for fertility restoration, indicating the possibility of obtaining high and stable grain yields in the pigeonpea growing areas of South and Central India.

Item Type:	Article
Divisions:	Research Program : Genetic Gains
CRP:	CGIAR Research Program on Grain Legumes
Uncontrolled Keywords:	Cajanus cajan, CMS, fertility restoration, G×E, hybrid, pigeonpea
Subjects:	Others > Crop Improvement Others > Plant Breeding Others > Crop Yield Mandate crops > Pigeonpea
Depositing User:	Mr Ramesh K
Date Deposited:	04 Jul 2019 10:43
Last Modified:	04 Jul 2019 10:43
URI:	http://oar.icrisat.org/id/eprint/11145
Official URL:	https://doi.org/10.1007/s12892-018-0172-0
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	Authors are grateful to the Bill and Melinda Gates Foundation (BMGF), USA and Integrated Scheme of Oilseeds, Pulses, Oil palm and Maize (ISOPOM), Government of India for providing financial assistance for this research. This work has been published as part of the CGIAR Research Program on Grain Legumes.
Links:	Google Scholar

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