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The program of sex chromosome pairing in meiosis is highly conserved across marsupial species: Implications for sex chromosome evolution
(GENETICS, 2005-06)
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 ...
Characterization of sex chromosomes in rainbow trout and coho salmon using fluorescence in situ hybridization (FISH)
(2001)
With the aim of characterizing the sex chromosomes of rainbow trout (Oncorhynchus mykiss) and to identify the sex chromosomes of coho salmon (O. kisutch), we used molecular markers OmyP9, 5S rDNA, and a growth hormone gene ...
Independent Origins of New Sex-Linked Chromosomes in the melanica and robusta Species Groups of Drosophila
(2008-01)
Background: Recent translocations of autosomal regions to the sex chromosomes represent
important systems for identifying the evolutionary forces affecting convergent patterns of sexchromosome
heteromorphism. Additions ...
Sex chromosomes, synapsis, and cohesins: a complex affair
(SPRINGER, 2006-06)
During first meiotic prophase, homologous chromosomes are held together by the synaptonemal complex, a tripartite proteinaceous structure that extends along the entire length of meiotic bivalents. While this feature is ...
Involvement of synaptonemal complex proteins in sex chromosome segregation during marsupial male meiosis
(PUBLIC LIBRARY SCIENCE, 2006-08)
Marsupial sex chromosomes break the rule that recombination during first meiotic prophase is necessary to ensure reductional segregation during first meiotic division. It is widely accepted that in marsupials X and Y ...
BRDT is an essential epigenetic regulator for proper chromatin organization, silencing of sex chromosomes and crossover formation in male meiosis
(Public Library Science, 2018)
The double bromodomain and extra-terminal domain (BET) proteins are critical epigenetic
readers that bind to acetylated histones in chromatin and regulate transcriptional activity
and modulate changes in chromatin structure ...
The frequency of heterologous synapsis increases with aging in Robertsonian heterozygous male mice
(Springer, 2012-02)
The house mouse is characterised by highly variable chromosome number due to the presence of Robertsonian (Rb) chromosomes. During meiosis in Rb heterozygotes, intricated chromosomal figures are produced, and many unsynapsed ...
Genomic compatibility between two phyllotine rodent species evaluated through their hybrids
(1999)
In order to investigate the genomic compatibility between allopatric rodent species, Phyllotis durivini and Pliyllotis
mugister, we have studied several cytogenetic and reproductive features of their laboratory hybrids. ...
Caracterización del cariotipo del mono aullador colorado Alouatta seniculus que habita en Colombia
(Universidad Nacional de Colombia, 2001)
Presentamos cariotipos con bandas Q, G, R Y C del mono aullador colorado de Colombia, con base en el análisis de los cariotipos de 12 ejemplares cautivos y la reevaluación de los cariotipos de bandas Q de un macho y de una ...
Y-chromosome and mtDNA variation confirms independent domestications and directional hybridization in South American camelids
(Wiley, 2017)
Investigations of genetic diversity and domestication in South American camelids (SAC) have relied on autosomal microsatellite and maternally-inherited mitochondrial data. We present the first integrated analysis of domestic ...