The Program of Sex Chromosome Pairing in Meiosis Is Highly Conserved Across Marsupial Species: Implications for Sex Chromosome Evolution

From: Genetics | Date: June 1, 2005| Author: Page, Jesà º s; Berrà ­ os, Soledad; Parra, Marà ­ a Teresa; Viera, Alberto; Et al | Copyright information

ABSTRACT

Marsupials present a series of genetic and chromosomal features that are highly conserved in very distant species. One of these features is the absence of a homologous region between X and Y chromosomes. According to this genetic differentiation, sex chromosomes do not synapse during the first meiotic prophase in males, and a special structure, the dense plate, maintains sex chromosome association. In this report we present results on the process of meiotic sex chromosome pair...

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