Publications
| phylogeography and mitochondrial dna (mtdna) diversity in north american collared lemmings (dicrostonyx groenlandicus). | variation in the nucleotide sequence of the mitochondrial control region (250 bp) and the cytochrome b region (870 bp) was examined in collared lemmings (dicrostonyx groenlandicus) from 19 localities in northern alaska and the canadian arctic. the division of d. groenlandicus in two phylogeographical groups with limited divergence across the mackenzie river is consistent with the separation of this species in more than one refugial area located to the northwest of the laurentide ice sheet during ... | 2000 | 10736030 |
| a male-biased natal sex-ratio in inbred collared lemmings, dicrostonyx groenlandicus. | a captive colony of collared lemmings (dicrostonyx groenlandicus) from northern alaska produced a male-biased sex ratio of 67% males for about three generations. these lemmings have a pair of autosomes fused to the sex chromosomes. thus, males have two copies of some (formerly autosomal) sex-linked genes: one set is x-linked; the other can be described as y-linked. given such a karyotype, deleterious recessive alleles on the autosomal portion of the x chromosome are more resistant to selection t ... | 1995 | 8598343 |