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Genome. 2002 Jun;45(3):600-3.

Mapping the SRY gene in Microtus cabrerae: a vole species with multiple SRY copies in males and females.

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Departamento de Psicobiología, Facultad Ciencias de la Educación, Universidad de A Coruña, Spain.


The SRY gene is a single-copy, male-specific gene, located on the Y chromosome in most mammals. However, recently we have described the presence of multiple polymorphic copies of this gene in both males and females of the vole species Microtus cabrerae. Here, we present the chromosomal localization of SRY gene copies in this species by fluorescent in situ hybridization (FISH). This technique localized these gene copies in the short arm, and hence in the euchromatic region, of the Y chromosome. Furthermore, several copies of the SRY gene are located on the X chromosome. These copies are spread along the entire heterochromatic region of the X chromosome, occupying the whole short arm, the centromeric region, and the pericentromeric region of the long arm.

[Indexed for MEDLINE]

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