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  • Title: Reconstruction of the putative cervidae ancestral karyotype by chromosome painting of Siberian roe deer (Capreolus pygargus) with dromedary probes.
    Author: Dementyeva PV, Trifonov VA, Kulemzina AI, Graphodatsky AS.
    Journal: Cytogenet Genome Res; 2010 Jun; 128(4):228-35. PubMed ID: 20413959.
    Abstract:
    The Siberian roe deer (Capreolus pygargus) is one of a few deer species presumably preserving the ancestral cervid karyotype. The comparative genomic data of the Siberian roe deer are critical for our understanding of the karyotypic relationships within artiodactyls. We have established chromosomal homologies between the Siberian roe deer and the dromedary (Camelus dromedarius) by cross-species chromosome painting with dromedary chromosome-specific painting probes. Dromedary chromosome paints detected 53 autosomal homologies in the genome of the Siberian roe deer. The identification of chromosomal homologies between the Siberian roe deer and cattle resulted from previously detected cattle-dromedary homologies. We have found 8 chromosomal rearrangements (6 fissions in the Siberian roe deer, 1 fission in the cattle and 1 inversion on the CPY11) that have separated the karyotypes of the cattle and the Siberian roe deer. The inversion on CPY11 might be an apomorphic trait of cervids, since we detected its presence in the gray brocket deer (Mazama gouazoubira). Thus our data further prove the scenario of chromosomal rearrangements that was previously proposed and add some new data.
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