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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/79/
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/79/1/JouOfHeredity1-7_2010.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.