Cytoplasmic male sterility system for Brassica species and its use for hybrid seed production in indian oilseed mustard Brassica juncea
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United States of America Patent
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Oct 4, 2011
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Jun 19, 2008
app pub date -
Aug 22, 2005
filing date -
Aug 26, 2004
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Abstract
A cytoplasmic male sterility (CMS) system in different Brassica species having a distinct mitochondrial DNA specific RFLP signature. A method for obtaining male sterile lines and restoration of fertility in B. juncea for hybrid seed production using the CMS. This CMS in B. juncea can be restored by crossing male sterile plants with any B. juncea genotype other than the maintainer genotype. The same B. juncea genotype acts as maintainer of male sterility after a specified number of backcrosses. The CMS also relates to histological characterization of another and microspore development in B. juncea.
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