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Titolo:
Biogeography of the southeastern United States: A comparison of salamanderphylogeographic studies
Autore:
Donovan, MF; Semlitsch, RD; Routman, EJ;
Indirizzi:
San Francisco State Univ, Dept Biol, San Francisco, CA 94132 USA San Francisco State Univ San Francisco CA USA 94132 ancisco, CA 94132 USA Univ Missouri, Div Biol Sci, Columbia, MO 65211 USA Univ Missouri Columbia MO USA 65211 Div Biol Sci, Columbia, MO 65211 USA
Titolo Testata:
EVOLUTION
fascicolo: 4, volume: 54, anno: 2000,
pagine: 1449 - 1456
SICI:
0014-3820(200008)54:4<1449:BOTSUS>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
MITOCHONDRIAL-DNA; INTRASPECIFIC PHYLOGEOGRAPHY; POPULATION-STRUCTURE; AMBYSTOMA-TIGRINUM; FRESH-WATER; HISTORICAL BIOGEOGRAPHY; NATURAL-POPULATIONS; SPOTTED SALAMANDER; TIGER SALAMANDER; SEQUENCES;
Keywords:
geographic variation; intergenic spacer; mitochondrial DNA; mole salamander; molecular phylogenetics; phylogeography;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
38
Recensione:
Indirizzi per estratti:
Indirizzo: Donovan, MF San Francisco State Univ, Dept Biol, San Francisco, CA 94132 USA San Francisco State Univ San Francisco CA USA 94132 94132 USA
Citazione:
M.F. Donovan et al., "Biogeography of the southeastern United States: A comparison of salamanderphylogeographic studies", EVOLUTION, 54(4), 2000, pp. 1449-1456

Abstract

Most phylogeographic studies of species from the southeastern United States have shown a simple east-west division of mtDNA variation. However, a study of the salamander Ambystoma maculatum resulted in a more complex patternthat includes a close affinity between populations from the Central Highlands of Missouri and Arkansas and the Coastal Plain separated by a genetically distinct central group of populations. We test the generality of this observation by surveying mitochondrial DNA (mtDNA) variation in the closely related species A. talpoideum. An Ambystoma-specific intergenic spacer was amplified and sequenced. The 26 resulting haplotypes varied from 380 to 800 base pairs, and alignments, including the outgroup, required 101 insertions/deletions Sequence divergence among haplotypes ranged from 0.001 to 0.758. Population subdivision was extensive (theta = 0.64). Phylogenetic analysisof A. talpoideum mtDNA sequence reveals a close relationship between the populations from the Central Highlands and the Coastal Plain. This result issimilar to that obtained for A. marulatum, although the A. talpoideum clade is not as well differentiated from its sister clades. We discuss the differences and similarities between the two Ambystoma species and previous studies and call for increased focus on multiple species with similar ecologies as a way to detect subtle biogeographic events.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/10/20 alle ore 01:31:41