Sexing Pinnipeds with ZFX and ZFY Loci

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Comparison of human ZFY and ZFX transcripts.

ZFY is a candidate for the primary sex-determining gene (TDF, testis-determining factor) on the human Y chromosome. We have isolated cDNA clones of ZFY and its homologue on the X chromosome, ZFX. The transcripts of these genes are very similar to each other and encode predicted proteins of equal size. The conceptual amino acid sequence of both proteins contains an acidic domain, similar to the ...

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CpG islands in human ZFX and ZFY and mouse Zfx genes: sequence similarities and methylation differences.

The human ZFX, human ZFY, and mouse Zfx genes have CpG islands near their 5; ends. These islands are typical in that they span about 1.5 kb, contain transcription initiation sites, and encompass some 5' untranslated exons and introns. However, comparitive nucleotide sequencing of these human and mouse islands provided evidence of evolutionary conservation to a degree unprecedented among mammali...

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Differential rates of evolution for the ZFY-related zinc finger genes, Zfy, Zfx, and Zfa in the mouse genus Mus.

A comparative study of the last exon of the zinc finger genes Zfx, Zfy, and Zfa from species of mice in the genus Mus was conducted to assess the extent of gene-specific and chromosome-specific effects on the evolutionary patterns among related X-, Y-, and autosomal-linked genes. Phylogenetic analyses of 29 sequences from Zfx, Zfa, and Zfy from 10 taxa were performed to infer relatedness among ...

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Evolution of the Zfx and Zfy genes: rates and interdependence between the genes.

A phylogenetic analysis of sex-chromosomal zinc-finger genes (Zfx and Zfy) indicates that the genes have not evolved completely independently since their initial separation. The sequence similarities suggest gene conversion in the last exon between the duplicated Y-chromosomal genes Zfy-1 and Zfy-2 in the mouse. There are also indications of conversion (or recombination) between the X- and Y-ch...

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Mouse Zfx protein is similar to Zfy-2: each contains an acidic activating domain and 13 zinc fingers.

The Zfy gene is located on the Y chromosome of placental mammals and encodes a zinc finger protein which may serve as the primary sex-determining signal. A related gene, Zfx, is similarly conserved on the X chromosome. Unlike that in most mammals, the mouse genome contains four homologous zinc finger loci: Zfy-1, Zfy-2, Zfx, and Zfa (on an autosome). We report that, in contrast to the mouse Zfy...

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ژورنال

عنوان ژورنال: Journal of Heredity

سال: 2007

ISSN: 0022-1503,1465-7333

DOI: 10.1093/jhered/esm023