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- W2890968809 abstract "Accurate representation of lineage diversity through complete taxon sampling is crucial to understanding the evolution of biodiversity, particularly when using molecular phylogenetics to estimate evolutionary relationships. In this interest, taxonomic diversity is often used as a proxy for lineage diversity even though the two concepts are not synonymous. We explore this within the snake tribe Lampropeltini which includes some of the most conspicuous and heavily studied snakes in North America. Both the taxonomy and hypothesized relationships within this tribe have been in flux. The number of species has increased from 23 to 51 over the last thirty years, predominately within three of the nine genera (Lampropeltis, Pantherophis, Pituophis). The remaining six depauperate genera (Arizona, Bogertophis, Cemophora, Pseudelaphe, Rhinocheilus, and Senticolis) have been poorly represented in phylogenetic studies. To estimate evolutionary relationships and determine if the dichotomy in depauperate and speciose genera within Lampropeltini is a function of taxon sampling or truly represents the lineage diversity, we estimated the phylogeny of this group using nuclear and mitochondrial loci in a concatenated and coalescent framework with the largest sampling of the six depauperate genera to date. In addition, we estimated the divergence dates among the genera to assess whether the instability of Lampropeltini phylogenetic relationships is due to an adaptive radiation. While some nodes still remain unresolved, the generic-level relationships we recovered agree with those of a recent next-generation study that used a much larger set of loci for fewer individuals. We also tested two putative species, Arizona pacata and Pseudelaphe phaescens, for the first time phylogenetically and find evidence that they are distinct lineages. Overall, we find that the taxonomic and genetic diversity are not correlated in Lampropeltini and that representing putative diversity in phylogenies will lead to a better estimate of evolutionary histories, especially in groups with complex radiations." @default.
- W2890968809 created "2018-09-27" @default.
- W2890968809 creator A5003750110 @default.
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- W2890968809 creator A5066711386 @default.
- W2890968809 creator A5076405275 @default.
- W2890968809 creator A5087599857 @default.
- W2890968809 date "2018-12-01" @default.
- W2890968809 modified "2023-10-18" @default.
- W2890968809 title "Hidden diversity within the depauperate genera of the snake tribe Lampropeltini (Serpentes, Colubridae)" @default.
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- W2890968809 doi "https://doi.org/10.1016/j.ympev.2018.08.018" @default.
- W2890968809 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30189319" @default.
- W2890968809 hasPublicationYear "2018" @default.