Variation in induction of homoeologous chromosome pairing in 6x Aegilops crassa by genomes of six different species of Secale

Gupta, P. K. ; Fedak, George (1985) Variation in induction of homoeologous chromosome pairing in 6x Aegilops crassa by genomes of six different species of Secale Canadian Journal of Genetics and Cytology, 27 (5). pp. 531-537. ISSN 0008-4093

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Official URL: http://www.nrcresearchpress.com/doi/abs/10.1139/g8...

Related URL: http://dx.doi.org/10.1139/g85-078

Abstract

Meiosis was studied in hybrids between Aegilops crassa (Boiss.) Hitch and Hensl. (2n = 6x = 42) having the genomes DD2MCr and six species of Secale. The chiasmata frequency per cell ranged from 6.86 in hybrids with S. cereale to 9.93 in hybrids with S. montanum ssp. dalmaticum. These results provide further evidence that a meiotic pairing control system is operating in Ae. crassa. The Secale genotypes suppress the function of this system in a manner which was inversely related to their heterochromatin content and total DNA content.

Item Type:Article
Source:Copyright of this article belongs to Genetics Society of Canada.
Keywords:Secale; Aegilops; Chiasmata; Meiotic Pairing Control; Hybrids
ID Code:74941
Deposited On:19 Dec 2011 05:38
Last Modified:19 Dec 2011 05:38

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