2010
DOI: 10.1111/j.1365-2699.2010.02431.x
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Evolutionary drivers of phylogeographical diversity in the highlands of Mexico: a case study of the Crotalus triseriatus species group of montane rattlesnakes

Abstract: Aim To assess the genealogical relationships of widespread montane rattlesnakes in the Crotalus triseriatus species group and to clarify the role of Late Neogene mountain building and Pleistocene pine-oak forest fragmentation in driving the diversification of Mexican highland taxa.Location Highlands of mainland Mexico and the south-western United States (Texas, New Mexico, and Arizona).Methods A synthesis of inferences was used to address several associated questions about the biogeography of the Mexican highl… Show more

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Cited by 125 publications
(164 citation statements)
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References 70 publications
(122 reference statements)
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“…(Asparagaceae). The Balsas Basin, a well-identified geographic barrier to gene flow for several taxa (Bryson et al, 2011), was suggested to explain the genetic separation between eastern and western populations and can also be invoked in our study. Secondly, during the Pleistocene the NC volcano was located in the middle of a vast ecological corridor allowing passage from Isthmus Pacific plains to Sonora lowlands, but was strongly isolated from the ecological corridor of the eastern part of the TMVB (Ceballos et al, 2010).…”
Section: Genetic Partitioning Of Populationsmentioning
confidence: 84%
“…(Asparagaceae). The Balsas Basin, a well-identified geographic barrier to gene flow for several taxa (Bryson et al, 2011), was suggested to explain the genetic separation between eastern and western populations and can also be invoked in our study. Secondly, during the Pleistocene the NC volcano was located in the middle of a vast ecological corridor allowing passage from Isthmus Pacific plains to Sonora lowlands, but was strongly isolated from the ecological corridor of the eastern part of the TMVB (Ceballos et al, 2010).…”
Section: Genetic Partitioning Of Populationsmentioning
confidence: 84%
“…However, we think it unlikely that more extensive structure would be detected using our mitochondrial marker because the samples from Tapalpa, Jalisco, are partially separated from other samples by the lower elevations of the Río Santiago Basin in central Jalisco, which is one of the most likely filter barriers separating extant populations. With respect to our comparative dataset, we note that most North American pitvipers with high levels of withinspecies SD traditionally have been recognized as widespread polytypic taxa, and multiple lines of evidence suggest that many are species complexes (e.g., Douglas et al 2006, Bryson et al 2011a; thus, as taxonomy more accurately reflects species boundaries, we presume that the high SD exhibited by some taxa will be reduced.…”
Section: Discussionmentioning
confidence: 95%
“…Although our sample size is relatively low, it is similar to most previous intraspecific sample sizes for studies that have used ATPase 8 and 6 to examine phylogenetic relationships within and among rattlesnakes (e.g., Douglas et al 2006, Bryson et al 2011a; therefore, comparisons to those datasets are warranted. Maximum within-species SD and per site nucleotide diversity at ATPase 8 and 6 is low in Crotalus polystictus when compared with other North American pitvipers in general, and with other Mexican montane rattlesnakes in particular ( Table 2).…”
Section: Levels Of Genetic Divergence Withinmentioning
confidence: 99%
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