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Chromosomal and molecular characterization of Aethomys kaiseri from Zambia and Aethomys chrysophilus from Tanzania (Rodentia, Muridae)

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dc.creator Corti, Castiglia, R.
dc.creator Colangelo, M
dc.creator Annesi, P
dc.date 2016-12-07T10:20:36Z
dc.date 2016-12-07T10:20:36Z
dc.date 2003
dc.date.accessioned 2022-10-25T08:53:02Z
dc.date.available 2022-10-25T08:53:02Z
dc.identifier https://www.suaire.sua.ac.tz/handle/123456789/1096
dc.identifier.uri http://hdl.handle.net/123456789/93277
dc.description Hereditas, 2003; 139: 81 – 89
dc.description Aethomys is a common and widespread rodent genus in the African savannas and grasslands. However, its systematics and taxonomy are still unclear as no study has covered the entire range. In fact it might not be a monophyletic genus and perhaps should be split into two subgenera, Micaelamys and Aethomys. In this paper, we present findings based on the cytogenetics and the entire cytochrome b sequence of two species from Zambia (A. kaiseri ) and Tanzania (A. chrysophilus), and we compare them with the sequences of a South African species (A. namaquensis) and other allied muroid genera. Comparison of the banded chromosomes revealed complete G-band homology between the autosomes of the two species. However, the X and Y chromosomes clearly differ in size and in C- and G-banding, being much larger in A. kaiseri. Comparison of the cytochrome b sequences places the separation between A. kaiseri and A. chrysophilus at 4.49 Mya, a period of intense speciation in other African muroids. The resulting phylogeny strongly supports the idea of a paraphyletic group, suggesting the need to elevate the previously described subgenera to the genus rank.
dc.format application/pdf
dc.language en
dc.publisher Wiley
dc.subject Molecular characterization
dc.subject Chromosomal
dc.subject Rodentia, Muridae
dc.subject Aethomys chrysophilus
dc.subject Zambia
dc.subject Tanzania
dc.title Chromosomal and molecular characterization of Aethomys kaiseri from Zambia and Aethomys chrysophilus from Tanzania (Rodentia, Muridae)
dc.type Article


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