Abstract
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, Australophocaena 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.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 463-474 |
| Number of pages | 12 |
| Journal | Molecular Phylogenetics and Evolution |
| Volume | 4 |
| Issue number | 4 |
| DOIs | |
| State | Published - Dec 1995 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Molecular Biology
- Genetics
- Ecology, Evolution, Behavior and Systematics
Cite this
Phylogenetic Relationships among the True Porpoises (Cetacea : Phocoenidae). / Rosel, Patricia E.; Haygood, Margo; Perrin, William F.
In: Molecular Phylogenetics and Evolution, Vol. 4, No. 4, 12.1995, p. 463-474.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Phylogenetic Relationships among the True Porpoises (Cetacea
T2 - Phocoenidae)
AU - Rosel, Patricia E.
AU - Haygood, Margo
AU - Perrin, William F.
PY - 1995/12
Y1 - 1995/12
N2 - 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, Australophocaena 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.
AB - 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, Australophocaena 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=0029440095&partnerID=8YFLogxK
U2 - 10.1006/mpev.1995.1043
DO - 10.1006/mpev.1995.1043
M3 - Article
C2 - 8747302
AN - SCOPUS:0029440095
VL - 4
SP - 463
EP - 474
JO - Molecular Phylogenetics and Evolution
JF - Molecular Phylogenetics and Evolution
SN - 1055-7903
IS - 4
ER -