| robertsonian polymorphism, b chromosomes variation and sex chromosomes heteromorphism in the african water rat dasymys (rodentia, muridae). | chromosome banding analysis (g- and c-bands) of dasymys rufulus from senegal, mali and the ivory coast, and d. cf. incomtus from eastern and south-western ethiopia was carried out. the diploid numbers (2n) in the former species range between 36 and 39 due to the presence of 0-3 small biarmed heterochromatic b chromosomes, resulting in a corresponding variation of the number of autosomal arms (nfa) between 44 and 50. the basic autosomal set was, however, constant and identical in these specimens. ... | 2000 | 11196132 |
| molecular phylogeny of myomys/stenocephalemys complex and its relationships with related african genera. | partial 16s rrna mitochondrial gene sequences were used to infer the phylogenetic relationships among stenocephalemys albocaudata, s. griseicauda and myomys albipes, three closely related ethiopian endemic murines and a selection of related species (myomys daltoni, praomys delectorum, mastomys natalensis, hylomyscus kaimosae, and colomys goslingi) from other african regions. the obtained phylogeny confirms the close relationship between m. albipes and the two stenocephalemys species, but it also ... | 2001 | 11336808 |