Development of isonuclear male sterile lines with four different cytoplasmic backgrounds in rice

For the first time in rice, four cytoplasmic genetic male sterile (CMS) lines with different cytoplasmic backgrounds, namely, Wild abortive, Oryza perennis (through conversion), Kalinga I, and Lalruma (through indica/indica hybridization) were developed by repeated backcrossing with a common isonucl...

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Bibliographic Details
Published in:Current science (Bangalore) 1999-05, Vol.76 (9), p.1239-1241
Main Authors: Pradhan, S. B., Jachuck, P. J.
Format: Article
Language:English
Subjects:
Cytoplasm
Hybridity
Inbreeding
Lowlands
Male infertility
Panicles
Plants
Pollen
RESEARCH COMMUNICATIONS
Rice
Spikelets
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Summary:For the first time in rice, four cytoplasmic genetic male sterile (CMS) lines with different cytoplasmic backgrounds, namely, Wild abortive, Oryza perennis (through conversion), Kalinga I, and Lalruma (through indica/indica hybridization) were developed by repeated backcrossing with a common isonuclear maintainer, cultivar (cv.) Krishna. These four new CMS lines with a common nuclear background were confirmed to be cytoplasmically different from one another.
ISSN:0011-3891