Tags

Type your tag names separated by a space and hit enter

Molecular phylogeny and biogeography of the grass lizards genus Takydromus (Reptilia: Lacertidae) of East Asia.
Mol Phylogenet Evol. 2002 Feb; 22(2):276-88.MP

Abstract

Takydromus Daudin is a group of Lacertidae lizards with slender bodies and long tails. Half of the Takydromus spp. are endemic to islands of eastern Asia aligned along the Pacific margin of the East Asian continent. This feature offers a good opportunity to study the effects of glaciations and land connections on the speciation of East Asian fauna. We reconstructed the molecular phylogeny of Takydromus species via the mitochondrial 12S rRNA gene. Phylogenetic analyses using maximum-parsimony, neighbor-joining, and maximum-likelihood options do not support a two-subgenera scheme of Takydromus and Platyplacopus proposed earlier. In contrast, the phylogeny of Takydromus species on islands fits the sequential separation of island groups influenced by changes in sea level. The hypothesis in our prediction supports the process of vicariant speciation and multicolonization of grass lizards on eastern Asian islands. At least two obvious colonization events were followed by vicariance events. Because the molecular clock of the 12 rRNA gene was not rejected in our model test, it is possible to estimate times of speciation events. As the most isolated and basal species compared to other temperate and subtropical species of Takydromus, the separation period of T. smaragdinus in the central Ryukyus is the crucial point in estimating the evolutionary rate. Quaternary-origin or Tertiary-origin models are proposed and discussed.

Links

Publisher Full Text

Authors+Show Affiliations

Lin SM
Department of Biology, National Taiwan Normal University, Taipei 116, Taiwan.
Chen CA
No affiliation info available
Lue KY
No affiliation info available

MeSH

AnimalsDNADNA, MitochondrialEvolution, MolecularGeographyJapanLizardsMolecular Sequence DataPhylogenyRNA, RibosomalSequence Analysis, DNATaiwan

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

11820848

Citation

Lin, Si-Min, et al. "Molecular Phylogeny and Biogeography of the Grass Lizards Genus Takydromus (Reptilia: Lacertidae) of East Asia." Molecular Phylogenetics and Evolution, vol. 22, no. 2, 2002, pp. 276-88.
Lin SM, Chen CA, Lue KY. Molecular phylogeny and biogeography of the grass lizards genus Takydromus (Reptilia: Lacertidae) of East Asia. Mol Phylogenet Evol. 2002;22(2):276-88.
Lin, S. M., Chen, C. A., & Lue, K. Y. (2002). Molecular phylogeny and biogeography of the grass lizards genus Takydromus (Reptilia: Lacertidae) of East Asia. Molecular Phylogenetics and Evolution, 22(2), 276-88.
Lin SM, Chen CA, Lue KY. Molecular Phylogeny and Biogeography of the Grass Lizards Genus Takydromus (Reptilia: Lacertidae) of East Asia. Mol Phylogenet Evol. 2002;22(2):276-88. PubMed PMID: 11820848.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Molecular phylogeny and biogeography of the grass lizards genus Takydromus (Reptilia: Lacertidae) of East Asia. AU - Lin,Si-Min, AU - Chen,Chaolun Allen, AU - Lue,Kuang-Yang, PY - 2002/2/1/pubmed PY - 2002/4/4/medline PY - 2002/2/1/entrez SP - 276 EP - 88 JF - Molecular phylogenetics and evolution JO - Mol Phylogenet Evol VL - 22 IS - 2 N2 - Takydromus Daudin is a group of Lacertidae lizards with slender bodies and long tails. Half of the Takydromus spp. are endemic to islands of eastern Asia aligned along the Pacific margin of the East Asian continent. This feature offers a good opportunity to study the effects of glaciations and land connections on the speciation of East Asian fauna. We reconstructed the molecular phylogeny of Takydromus species via the mitochondrial 12S rRNA gene. Phylogenetic analyses using maximum-parsimony, neighbor-joining, and maximum-likelihood options do not support a two-subgenera scheme of Takydromus and Platyplacopus proposed earlier. In contrast, the phylogeny of Takydromus species on islands fits the sequential separation of island groups influenced by changes in sea level. The hypothesis in our prediction supports the process of vicariant speciation and multicolonization of grass lizards on eastern Asian islands. At least two obvious colonization events were followed by vicariance events. Because the molecular clock of the 12 rRNA gene was not rejected in our model test, it is possible to estimate times of speciation events. As the most isolated and basal species compared to other temperate and subtropical species of Takydromus, the separation period of T. smaragdinus in the central Ryukyus is the crucial point in estimating the evolutionary rate. Quaternary-origin or Tertiary-origin models are proposed and discussed. SN - 1055-7903 UR - https://www.unboundmedicine.com/medline/citation/11820848/Molecular_phylogeny_and_biogeography_of_the_grass_lizards_genus_Takydromus__Reptilia:_Lacertidae__of_East_Asia_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1055790301910590 DB - PRIME DP - Unbound Medicine ER -