The effects of derived B-chromosomes on meiosis in pearl millet Pennisetum typhoides

Subba Rao, M.V. and Pantulu, J.V. (1978) The effects of derived B-chromosomes on meiosis in pearl millet Pennisetum typhoides. Chromosoma, 69 (1). pp. 121-130.

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Abstract

The cytological behaviour of standard, deficient and iso-B chromosomes was studied, together with their effects on the endophenotype. Observations made suggest that a balance between the contents of heterochromatin and euchromatin in the B chromosomes is responsible for the differential effects of the three types on mean A-chiasma frequency. The extra euchromatin represented by the iso-B chromosomes appears to enhance the mean A-chromosome chiasma frequency whereas the extra heterochromatin has a repressing effect

Item Type: Article
Author Affiliation: Department of Botany, Andhra University, Waltair 530 003, India
Subjects: Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Millet
Depositing User: Ms K Syamalamba
Date Deposited: 07 May 2012 03:31
Last Modified: 07 May 2012 03:31
Official URL: http://dx.doi.org/10.1007/BF00327386
URI: http://eprints.icrisat.ac.in/id/eprint/5117

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