A cytoplasmic-nuclear male-sterility system derived from a cross between Cajanus cajanifolius and Cajanus cajan

Saxena, K.B. and Kumar, R.V. and Srivastava, N. and Shiying, B. (2005) A cytoplasmic-nuclear male-sterility system derived from a cross between Cajanus cajanifolius and Cajanus cajan. Euphytica, 145 (3). pp. 289-294.

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Cytoplasmic-nuclear male-sterility is an important biological tool, which has been used by plant breeders to increase yields in cross-pollinated cereals and vegetables by commercial exploitation of the phenomenon of hybrid vigour. In legumes, no such example exists due to the absence of an economic way of mass pollen transfer from male to female parent. Pigeonpea [Cajanus cajan (L.) Millsp.], however, is a different legume where a moderate level of insect-aided natural out-crossing (25-70%) exists and it can be used to produce commercial hybrid cultivars, if an efficient and stable cytoplasmic-nuclear male-sterility (CMS) system is available. This paper reports the development of a stable CMS system (ICP 2039A), derived from an inter-specific hybrid of Cajanus cajanifolius, a wild relative of pigeonpea, with a cultivar ICP 11501. Using this genetic material, designated as the A4 cytoplasm, a number of fertility restorers and maintainers have been developed. The best short-duration experimental pigeonpea hybrid ICPH 2470 produced 3205 kg ha-1 grain yield in 125 days, exhibiting 77.5% advantage over the control cultivar UPAS 120. At present, all the important biological systems necessary for a successful commercial hybrid breeding programme are available in pigeonpea and the package of this technology has been adopted by private seed sector in India for the production and marketing of hybrid varieties

Item Type: Article
Author Affiliation: International Crops Research Institute for the Semi-Arid Tropics, Patancheru, 502 324, Andhra Pradesh, India
Subjects: Plant Protection > Pesticides
Plant Protection > Pests
Divisions: Pigeonpea
Depositing User: Mr B Krishnamurthy
Date Deposited: 24 May 2011 09:02
Last Modified: 24 May 2011 09:02
Official URL: http://dx.doi.org/10.1007/s10681-005-1647-7
URI: http://eprints.icrisat.ac.in/id/eprint/2064

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