| genealogical concordance and the specific status of peromyscus sejugis. | peromyscus sejugis, a peripheral isolate of peromyscus maniculatus, is a threatened taxon endemic to 2 small islands in the sea of cortés. although its insularity makes the specific recognition of p. sejugis inherently problematic, resolution of this problem has important conservation implications. to evaluate the specific validity and evolutionary history of p. sejugis, we compared sequence variation (nd3/nd4l/nd4) in mtdna for both island populations of p. sejugis with that for 8 populations o ... | 2006 | 16785280 |