Karyotypes of Brazilian squirrels: Sciurus spadiceus and Sciurus alphonsei (Rodentia, Sciuridae)
2002
Lima, J.F.S. (University of Tocantins (Brazil). Inst. of Biology and Public Health) | Langguth, A.
The karyotypes of Sciurus alphonsei from the Brazilian Atlantic Forest and S. spadiceus from the Amazon region are described. Standard staining revealed 2n=40 and FN=76 in both species, with all autosome pairs being biarmed. C-banding in S. alphonsei showed pericentromeric labelling only. The karyotypes obtained are similar to those known for Holarctic taxa, except S. vulgaris and S. v. coreae that have FN=72. The karyotypic stability of the diploid number in genus Sciurus is confirmed.
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