期刊
JOURNAL OF MAMMALOGY
卷 85, 期 6, 页码 1160-1169出版社
OXFORD UNIV PRESS INC
DOI: 10.1644/BER-115.1
关键词
cytochrome-b gene; DNA sequences; Peromyscus; Peromyscus truei species group
类别
DNA sequences from the mitochondrial cytochrome-b gene were used to examine the composition and phylogenetic relationships of the Peromyscus truei species group. Thirty-one individuals from the southwestern United States and Mexico were examined. Results indicated that 6 Peromyscus species (attwateri, difficilis, gratus, nasutaus, pectoralis, and truei) compose the P. truei species group and that the group should be divided into 2 species assemblages. The relationship of the P. truei species group to the P. boylii and P. aztecus species groups was unresolved, indicating a close association of these 3 groups. In addition, levels of sequence divergence between sister taxa were higher than those reported for other sister species of Peromyscus.
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