University of Veterinary Medicine Vienna - Research portal

Diagrammed Link to Homepage University of Veterinary Medicine, Vienna

Selected Publication:

Publication type: Journal Article
Document type: Full Paper

Year: 2003

Author(s): Wallner, B; Brem, G; Müller, M; Achmann, R

Title: Fixed nucleotide differences on the Y chromosome indicate clear divergence between Equus przewalskii and Equus caballus.

Source: Anim Genet. 2003; 34(6):453-456



Authors Vetmeduni Vienna:

Brem Gottfried
Müller Mathias
Wallner Barbara

Vetmed Research Units
Institute of Animal Breeding and Genetics


Abstract:
The phylogenetic relationship between Equus przewalskii and E. caballus is often a matter of debate. Although these taxa have different chromosome numbers, they do not form monophyletic clades in a phylogenetic tree based on mtDNA sequences. Here we report sequence variation from five newly identified Y chromosome regions of the horse. Two fixed nucleotide differences on the Y chromosome clearly display Przewalski"s horse and domestic horse as sister taxa. At both positions the Przewalski"s horse haplotype shows the ancestral state, in common with the members of the zebra/ass lineage. We discuss the factors that may have led to the differences in mtDNA and Y-chromosomal observations.

Keywords Pubmed: Animals
Base Sequence
DNA, Mitochondrial/genetics
Genetic Variation/genetics*
Horses/classification
Horses/genetics*
Male
Molecular Sequence Data
Phylogeny
Probability
Species Specificity
Y Chromosome/genetics*


© University of Veterinary Medicine ViennaHelp and Downloads