Aneuploids and revertant diploids in the progeny of autotetraploid pearl millet

Arundhati, K. and Rao, P.S.R.L.N. and Pantulu, J.V. (1982) Aneuploids and revertant diploids in the progeny of autotetraploid pearl millet. Annals of Botany, 50 (4). pp. 499-505.

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Abstract

Aneuploid tetraploids with chromosome numbers 4n = 25 to 4n = 33 and revertant diploids (2n = 14) recurred in several generations of autotetraploid Pennisetum typhoides [P. americanum]. Aneuploids as a class were not of an inferior plant type compared with euploids but they were less fertile and more variable in morphology. They were eliminated by selecting bold grains for sowing and vigorous seedlings for transplantation. Grown near each other both tetraploids and diploids showed lower grain set in open-pollinated ears than in selfed ones. An occasional triploid was recovered from open-pollinated tetraploids. Diploid revertants, recovered in most populations, were often more vigorous than source diploids although some were weaklings. Evidence is presented indicating that aneuploid gametes were functional through one parent only, presumably the female

Item Type: Article
Author Affiliation: Dep. Bot., Andhra Univ., Waltair, India.
Subjects: Plant Protection
Crop Improvement
Divisions: Millet
Depositing User: Mr B Krishnamurthy
Date Deposited: 10 Jul 2012 08:43
Last Modified: 10 Jul 2012 08:43
URI: http://eprints.icrisat.ac.in/id/eprint/6663

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