Subba Rao, M.V. (1980) Inheritance of B-chromosomes in pearl millet. Heredity, 45 (1). pp. 1-6.
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Abstract
The transmission pattern of three types of B-chromosome, Standard, Deficient and Iso, was studied through reciprocal crosses with non-B-carrying plants. The three types of B's were accumulated in the progeny when transmitted through the seed parent, probably as a result of the presence of directed segregation of the B's into the functional megaspore. Through the male side, Standard B's showed a slight gain whereas Deficient and Iso-B's showed reduced rates of transmission. It is suggested that a post-meiotic mechanism, viz., preferential fertilisation of eggs by male gametes having B's, might be responsible for the slight gain of Standard B's in the progeny when transmitted through the male side. It is suggested that the heterochromatic short arm is not responsible for the difference in the transmission frequencies of the three types of B's through the pollen parent and that the Deficient and Iso-B's might be subjected to gametic screening on the male side
| Item Type: | Article |
|---|---|
| Author Affiliation: | Department of Botany, Andhra University, Waltair 530 003, India |
| Subjects: | Crop Improvement |
| Divisions: | Millet |
| Depositing User: | Ms K Syamalamba |
| Date Deposited: | 04 May 2012 10:57 |
| Last Modified: | 04 May 2012 10:57 |
| Official URL: | http://dx.doi.org/10.1038/hdy.1980.45 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/5114 |
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