Rao, G. U. ; Batra-Sarup, Vinita ; Prakash, S. ; Shivanna, K. R. (1994) Development of a new cytoplasmic male-sterility system in Brassica juncea through wide hybridization Plant Breeding, 112 (2). pp. 171-174. ISSN 0179-9541
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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1439-...
Related URL: http://dx.doi.org/10.1111/j.1439-0523.1994.tb00666.x
Abstract
A new cytoplasmic male-sterility system was developed in an oilseed Brassica, viz. B. juncea var. 'Pusa Bold' with the cytoplasmic background of a wild species, Diplotaxis siifolia, obtained through wide hybridization. The synthetic alloploid (D. siifolia×B. juncea: 2n=56, D3D3AABB) was repeatedly backcrossed to B. juncea to achieve cytoplasmic substitution. The CMS plants resembled the cultivar in growth and morphology. The flowers had narrow sepals and petals and short, shrivelled anthers which failed to dehisce. The meiotic process appeared to be normal. The microspores degenerated at an early stage after tetrad formation. Female fertility in the CMS plants was as good as in the cultivar. Female transmission of sterility confirmed it to be cytoplasmically encoded.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to John Wiley and Sons. |
| Keywords: | Brassica juncea; Diplotaxis siifolia; Coenospecies; Cytoplasmic Male Sterility; Wide Hybridization |
| ID Code: | 49045 |
| Deposited On: | 19 Jul 2011 07:23 |
| Last Modified: | 19 Jul 2011 07:23 |
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