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  • Title: Chromosome painting refines the history of genome evolution in hares and rabbits (order Lagomorpha).
    Author: Robinson TJ, Yang F, Harrison WR.
    Journal: Cytogenet Genome Res; 2002; 96(1-4):223-7. PubMed ID: 12438803.
    Abstract:
    Fluorescence in situ hybridization (FISH) was used to define homologous segments among representatives of 7 of the 11 recognized leporid genera. Chromosome painting using 22 rabbit chromosome-specific paints derived from flow-sorted chromosomes revealed that at least 18 fusions and six fissions differentiate the extant karyotypes from the presumed ancestral state (2n = 48). The riverine rabbit, Bunolagus monticularis, has the most derived karyotype, differing from the ancestor by seven fusions and five fissions, followed by Pronolagus rupestris, with four fusions and one fission. These findings are consistent with the proposed Palaeolaginae/Leporinae dichotomy in the lagomorphs. The molecular cytogenetic data allow for a refinement of the structural changes that have shaped genome evolution in this group of mammals and underscore the rapid radiation of the Leporidae suggested by mitochondrial DNA sequence data.
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