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Development of Cytoplasmic–Nuclear Male Sterility, Its Inheritance, and Potential Use in Hybrid Pigeonpea Breeding

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Relation http://oar.icrisat.org/245/
http://dx.doi.org/10.1093/jhered/esq028
 
Title Development of Cytoplasmic–Nuclear Male Sterility, Its Inheritance, and Potential Use in Hybrid Pigeonpea Breeding
 
Creator Saxena, K B
Ravikoti, V K
Dalvi, V A
Pandey, L B
Gaddikeri, G
 
Subject Pigeonpea
 
Description Pigeonpea [Cajanus cajan (L.) Millsp.] is a unique food legume because of its partial (20–30%) outcrossing nature,
which provides an opportunity to breed commercial hybrids. To achieve this, it is essential to have a stable male-sterility system. This paper reports the selection of a cytoplasmic–nuclear male-sterility (CMS) system derived from an interspecific cross between a wild relative of pigeonpea (Cajanus sericeus Benth. ex. Bak.) and a cultivar. This male-sterility source was used to breed agronomically superior CMS lines in early (ICPA 2068), medium (ICPA 2032), and late (ICPA 2030) maturity durations. Twentythree fertility restorers and 30 male-sterility maintainers were selected to develop genetically diverse hybrid combinations. Histological studies revealed that vacuolation of growing tetrads and persistence of tetrad wall were primary causes of the manifestation of male sterility. Genetic studies showed that 2 dominant genes, of which one had inhibitory gene action, controlled fertility restoration in the hybrids. The experimental hybrids such as TK 030003 and TK 030009 in early, ICPH 2307 and TK 030625 in medium, and TK 030861 and TK 030851 in late maturity groups exhibited 30–88% standard heterosis in multilocation trials.
 
Publisher Oxford University Press
 
Date 2010
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/245/1/n92.pdf
Saxena, K B and Ravikoti, V K and Dalvi, V A and Pandey, L B and Gaddikeri, G (2010) Development of Cytoplasmic–Nuclear Male Sterility, Its Inheritance, and Potential Use in Hybrid Pigeonpea Breeding. Journal of Heredity, 101 (4). pp. 497-503.