| patterns of sequence variation in the mitochondrial d-loop region of shrews. | direct sequencing of the mitochondrial displacement loop (d-loop) of shrews (genus sorex) for the region between the trna(pro) and the conserved sequence block-f revealed variable numbers of 79-bp tandem repeats. these repeats were found in all 19 individuals sequenced, representing three subspecies and one closely related species of the masked shrew group (sorex cinereus cinereus, s. c. miscix, s. c. acadicus, and s. haydeni) and an outgroup, the pygmy shrew (s. hoyi). each specimen also posses ... | 1994 | 8121290 |