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Species boundaries, phylogeography and conservation genetics of the red-legged frog (Rana aurora/draytonii) complex.
Mol Ecol. 2004 Sep; 13(9):2667-77.ME

Abstract

The red-legged frog, Rana aurora, has been recognized as both a single, polytypic species and as two distinct species since its original description 150 years ago. It is currently recognized as one species with two geographically contiguous subspecies, aurora and draytonii; the latter is protected under the US Endangered Species Act. We present the results of a survey of 50 populations of red-legged frogs from across their range plus four outgroup species for variation in a phylogenetically informative, approximately 400 base pairs (bp) fragment of the mitochondrial cytochrome b gene. Our mtDNA analysis points to several major results. (1) In accord with several other lines of independent evidence, aurora and draytonii are each diagnosably distinct, evolutionary lineages; the mtDNA data indicate that they do not constitute a monophyletic group, but rather that aurora and R. cascadae from the Pacific northwest are sister taxa; (2) the range of the draytonii mtDNA clade extends about 100 km further north in coastal California than was previously suspected, and corresponds closely with the range limits or phylogeographical breaks of several codistributed taxa; (3) a narrow zone of overlap exists in southern Mendocino County between aurora and draytonii haplotypes, rather than a broad intergradation zone; and (4) the critically endangered population of draytonii in Riverside County, CA forms a distinct clade with frogs from Baja California, Mexico. The currently available evidence favours recognition of aurora and draytonii as separate species with a narrow zone of overlap in northern California.

Authors+Show Affiliations

Section of Evolution and Ecology, and Center for Population Biology, University of California, Davis 95616, USA. hbshaffer@ucdavis.eduNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

Language

eng

PubMed ID

15315679

Citation

Shaffer, H Bradley, et al. "Species Boundaries, Phylogeography and Conservation Genetics of the Red-legged Frog (Rana Aurora/draytonii) Complex." Molecular Ecology, vol. 13, no. 9, 2004, pp. 2667-77.
Shaffer HB, Fellers GM, Voss SR, et al. Species boundaries, phylogeography and conservation genetics of the red-legged frog (Rana aurora/draytonii) complex. Mol Ecol. 2004;13(9):2667-77.
Shaffer, H. B., Fellers, G. M., Voss, S. R., Oliver, J. C., & Pauly, G. B. (2004). Species boundaries, phylogeography and conservation genetics of the red-legged frog (Rana aurora/draytonii) complex. Molecular Ecology, 13(9), 2667-77.
Shaffer HB, et al. Species Boundaries, Phylogeography and Conservation Genetics of the Red-legged Frog (Rana Aurora/draytonii) Complex. Mol Ecol. 2004;13(9):2667-77. PubMed PMID: 15315679.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Species boundaries, phylogeography and conservation genetics of the red-legged frog (Rana aurora/draytonii) complex. AU - Shaffer,H Bradley, AU - Fellers,G M, AU - Voss,S Randal, AU - Oliver,J C, AU - Pauly,Gregory B, PY - 2004/8/19/pubmed PY - 2004/10/28/medline PY - 2004/8/19/entrez SP - 2667 EP - 77 JF - Molecular ecology JO - Mol Ecol VL - 13 IS - 9 N2 - The red-legged frog, Rana aurora, has been recognized as both a single, polytypic species and as two distinct species since its original description 150 years ago. It is currently recognized as one species with two geographically contiguous subspecies, aurora and draytonii; the latter is protected under the US Endangered Species Act. We present the results of a survey of 50 populations of red-legged frogs from across their range plus four outgroup species for variation in a phylogenetically informative, approximately 400 base pairs (bp) fragment of the mitochondrial cytochrome b gene. Our mtDNA analysis points to several major results. (1) In accord with several other lines of independent evidence, aurora and draytonii are each diagnosably distinct, evolutionary lineages; the mtDNA data indicate that they do not constitute a monophyletic group, but rather that aurora and R. cascadae from the Pacific northwest are sister taxa; (2) the range of the draytonii mtDNA clade extends about 100 km further north in coastal California than was previously suspected, and corresponds closely with the range limits or phylogeographical breaks of several codistributed taxa; (3) a narrow zone of overlap exists in southern Mendocino County between aurora and draytonii haplotypes, rather than a broad intergradation zone; and (4) the critically endangered population of draytonii in Riverside County, CA forms a distinct clade with frogs from Baja California, Mexico. The currently available evidence favours recognition of aurora and draytonii as separate species with a narrow zone of overlap in northern California. SN - 0962-1083 UR - https://www.unboundmedicine.com/medline/citation/15315679/Species_boundaries_phylogeography_and_conservation_genetics_of_the_red_legged_frog__Rana_aurora/draytonii__complex_ DB - PRIME DP - Unbound Medicine ER -