title: Shared Y chromosome repetitive DNA sequences in stallion and donkey as visualized using whole-genomic comparative hybridization.
abstract: The genome of stallion (Spanish breed) and donkey (Spanish endemic Zamorano-Leonés) were compared using whole comparative genomic in situ hybridization (W-CGH) technique, with special reference to the variability observed in the Y chromosome. Results show that these diverging genomes still share some highly repetitive DNA families localized in pericentromeric regions and, in the particular case of the Y chromosome, a sub-family of highly repeated DNA sequences, greatly expanded in the donkey genome, accounts for a large part of the chromatin in the stallion Y chromosome.
authors.affiliation: Department of Biology, Genetics Unit, Universidad Autonoma de Madrid, Madrid, spain. jaime.gosalvez@uam.es
authors.forename: J
authors.initials: J
authors.lastname: Gosálvez
authors.forename: F
authors.initials: F
authors.lastname: Crespo
authors.forename: J L
authors.initials: JL
authors.lastname: Vega-Pla
authors.forename: C
authors.initials: C
authors.lastname: López-Fernández
authors.forename: E I
authors.initials: EI
authors.lastname: Cortés-Gutiérrez
authors.forename: M I
authors.initials: MI
authors.lastname: Devila-Rodriguez
authors.forename: R
authors.initials: R
authors.lastname: Mezzanotte
mesh_terms: D000818:Animals; D055028:Comparative Genomic Hybridization; D015342:DNA Probes; D018397:Equidae / Q000235:genetics*; D006736:Horses / Q000235:genetics*; D017404:In Situ Hybridization, Fluorescence; D008297:Male; D012091:Repetitive Sequences, Nucleic Acid / Q000235:genetics*; D014998:Y Chromosome / Q000235:genetics*
chemical_list: D015342:DNA Probes