Shared Y chromosome repetitive DNA sequences in stallion and donkey as visualized using whole-genomic comparative hybridization

Submitted: 18 December 2009
Accepted: 18 December 2009
Published: 28 January 2010
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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.

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Gosalvez, J., Crespo, F., Vega-Pla, J., López-Fernández, C., Cortés-Gutiérrez, E., & Mezzanotte, R. (2010). Shared Y chromosome repetitive DNA sequences in stallion and donkey as visualized using whole-genomic comparative hybridization. European Journal of Histochemistry, 54(1), e2. https://doi.org/10.4081/ejh.2010.e2