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Cytoplasmic-Genic Male-Sterility in Interspecific Matings of Cajanus

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Relation http://oar.icrisat.org/1569/
http://dx.doi.org/10.2135/cropsci1995.0011183X003500040008x
 
Title Cytoplasmic-Genic Male-Sterility in Interspecific Matings of Cajanus
 
Creator Ariyanayagam, R P
Rao, A N
Zaveri, P P
 
Subject Pigeonpea
 
Description The discovery of two stable male-sterile genes and the prevalence
of adequate insect-aided cross-pollination led to the development and
release of the first pigeonpea [Cajanus cajan (L.) Millsp.] hybrid in
India. Commercialization of this hybrid is constrained because of the
labor intensiveness of seed production and concerns about seed purity.
Cytoplasmic male-steriles would effectively circumvent these constraints
and revolutionize the hybrid seed industry. This paper reports
the development of cytoplasmically determined male-sterility, which
was accomplished by two methods: wide hybridization involving conventional
backcrossing of Cajanus sericeus van der Maesen and Cajanus
cajan and multiple cross genome transfer. In these matings, two forms
of reversion to fertility were noticed, one influenced by low temperature
and high humidity, and the other probably determined by genetic
factors alone. The influence of temperature on fertility restoration as
reported for Viciafaba L. is different from that seen in species crosses
of Cajanus. The multiple cross genome transfer method resulted in
stable cytoplasmic-genic male sterility maintainable by the pigeonpea
genotypes ICPL 85030 and ICPL 90035. These male-sterile lines are
in agronomically desirable backgrounds.
 
Publisher Crop Science Society of America
 
Date 1995
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://oar.icrisat.org/1569/1/Crop_Science_35%284%29981-985_1995.pdf
Ariyanayagam, R P and Rao, A N and Zaveri, P P (1995) Cytoplasmic-Genic Male-Sterility in Interspecific Matings of Cajanus. Crop Science, 35 (4). pp. 981-985. ISSN 1435-0653