Genome-wide comparative chromosome maps of Arvicola amphibius, Dicrostonyx torquatus, and Myodes rutilus
| Autor: | Malcolm A. Ferguson-Smith, Natalya A. Lemskaya, Svetlana A. Romanenko, Alexander S. Graphodatsky, Nina Bulatova, F. N. Golenishchev, Vladimir A. Trifonov, Patricia C. M. O’Brien, Fengtang Yang, Natalya A. Serdyukova |
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| Rok vydání: | 2015 |
| Předmět: |
Genetic Markers
0301 basic medicine Field vole Karyotype Zoology Synteny Cell Line Chromosome Painting 03 medical and health sciences Cricetinae Genetics Animals Dicrostonyx torquatus Water vole Phylogeny Chromosome Aberrations Sex Chromosomes Mesocricetus biology Arvicolinae Collared lemming Chromosome Mapping biology.organism_classification Biological Evolution Chromosome Banding 030104 developmental biology Arvicola Vole |
| Zdroj: | Chromosome Research. 24:145-159 |
| ISSN: | 1573-6849 0967-3849 |
| DOI: | 10.1007/s10577-015-9504-6 |
| Popis: | The subfamily Arvicolinae consists of a great number of species with highly diversified karyotypes. In spite of the wide use of arvicolines in biological and medicine studies, the data on their karyotype structures are limited. Here, we made a set of painting probes from flow-sorted chromosomes of a male Palearctic collared lemming (Dicrostonyx torquatus, DTO). Together with the sets of painting probes made previously from the field vole (Microtus agrestis, MAG) and golden hamster (Mesocricetus auratus, MAU), we carried out a reciprocal chromosome painting between these three species. The three sets of probes were further hybridized onto the chromosomes of the Eurasian water vole (Arvicola amphibius) and northern red-backed vole (Myodes rutilus). We defined the diploid chromosome number in D. torquatus karyotype as 2n = 45 + Bs and showed that the system of sex chromosomes is X1X2Y1. The probes developed here provide a genomic tool-kit, which will help to investigate the evolutionary biology of the Arvicolinae rodents. Our results show that the syntenic association MAG1/17 is present not only in Arvicolinae but also in some species of Cricetinae; and thus, should not be considered as a cytogenetic signature for Arvicolinae. Although cytogenetic signature markers for the genera have not yet been found, our data provides insight into the likely ancestral karyotype of Arvicolinae. We conclude that the karyotypes of modern voles could have evolved from a common ancestral arvicoline karyotype (AAK) with 2n = 56 mainly by centric fusions and fissions. |
| Databáze: | OpenAIRE |
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