| intraspecific lineages of the lizard phrynocephalus putjatia from the qinghai-tibetan plateau: impact of physical events on divergence and discordance between morphology and molecular markers. | the northeastern qinghai-tibetan plateau (nqtp) contains many physical features that may have contributed to its rich biological diversity. we explored the systematics and genetic structures of the sand lizards phrynocephalus putjatia, distributed across semi-deserts or rocky steppe habitats, and phrynocephalus guinanensis, found only in sand dune habitats, from the nqtp using mitochondrial (nd2 and trnas) and nuclear (rag-1) markers. bayesian analyses revealed two main monophyletic mtdna groups ... | 2014 | 24269317 |
| species history and divergence times of viviparous and oviparous chinese toad-headed sand lizards (phrynocephalus) on the qinghai-tibetan plateau. | the qinghai-tibetan plateau (qtp) is an important biogeographical area and has recently become a focus for biodiversity studies. phyrnocephalus lizards form a widespread eurasian group with oviparous and viviparous reproductive modes, but two previous mtdna studies of species from around the qtp have provided different phylogenetic hypotheses. we analysed three loci (mtdna, rag-1, ame) from all recognised chinese phrynocephalus species to reconstruct the speciation history of the group and to es ... | 2013 | 23567019 |