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Maternal inheritance of male sterility in the progeny of a natural hybrid between Cajanus lineatus and C. cajan

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Relation http://oar.icrisat.org/10509/
http://dx.doi.org/10.1111/pbr.12571
10.1111/pbr.12571
 
Title Maternal inheritance of male sterility in the progeny of a natural hybrid between Cajanus lineatus and C. cajan
 
Creator Saxena, K B
Kumar, R V
Rao, R
Saxena, R K
 
Subject Plant Breeding
Pigeonpea
 
Description Adoption of pigeonpea hybrids in central and southern India is showing high impact with on‐farm yield advantages of >30%. The hybrid pigeonpea technology, the first in any legume crop, is based on a cytoplasmic‐nuclear male‐sterility (CMS) system. For a long‐term sustainability of hybrid programme, it is imperative that both nuclear diversity and cytoplasmic diversity are maintained among hybrid parents. In this context, a continuous search for new CMS‐inducing cytoplasms is necessary. This paper reports detection of maternal inheritance of male sterility in the progeny derived from a natural hybrid between a wild relative [Cajanus lineatus (W. & A.) Maesen comb. nov.] of pigeonpea and an unknown pigeonpea [Cajanus cajan (L.) Millsp.] genotype. In the present study, the male sterility was maintained up to BC7F1 generation by an advanced breeding pigeonpea line ICPL 99044. This male sterility inducing cytoplasm of C. lineatus was tagged as A6. In future, this CMS genetic stock can be used to develop a range of new pigeonpea hybrids with high yield and adaptation.
 
Publisher Wiley
 
Date 2018-03
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/10509/1/2018_A6_Plant%20Breeding.pdf
Saxena, K B and Kumar, R V and Rao, R and Saxena, R K (2018) Maternal inheritance of male sterility in the progeny of a natural hybrid between Cajanus lineatus and C. cajan. Plant Breeding (TSI). pp. 1-5. ISSN 0179-9541