Phylogenetic relationships among the true porpoises (Cetacea: Phocoenidae)

被引：82

作者：

Rosel, PE

Haygood, MG

Perrin, WF

机构：

[1] UNIV CALIF SAN DIEGO,SCRIPPS INST OCEANOG,DIV MARINE BIOL RES,LA JOLLA,CA 92093

[2] SW FISHERIES SCI CTR,LA JOLLA,CA 92038

来源：

MOLECULAR PHYLOGENETICS AND EVOLUTION | 1995年 / 4卷 / 04期

关键词：

D O I：

10.1006/mpev.1995.1043

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Portions of the cytochrome b gene and control region of the mitochondrial DNA molecule were sequenced to investigate systematic relationships among the six extant species of true porpoises, (Cetacea: Phocoenidae). Phylogenetic analyses of mitochondrial cytochrome b sequences support a close relationship between Burmeister's porpoise, Phocoena spinipinnis, and the vaquita, Phocoena sinus, and the association of these two species with the spectacled porpoise, Austraiophocaena dioptrica. The latter result is not in concordance with a recent morphological reclassification which groups A. dioptrica with Dall's porpoise, Phocoenoides dalli in the subfamily Phocoenoidinae. The molecular analysis found no support for this grouping. A. dioptrica was originally described as a member of the genus Phocoena, and our results support returning it to that genus at this time. Finally, the data suggest that the tropical species Neophocaena phocaenoides, the finless porpoise, may represent the most basal member of the family. The control region sequences corroborated the relationships among the closely related taxa P. sinus, P. spinipinnis, and A. dioptrica, but were unable to resolve the deeper branches of the tree, probably as a result of a high level of saturation of these sequences. (C) 1995 Academic Press, Inc.

引用

页码：463 / 474

页数：12

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