Out of Africa: Phylogeny and biogeography of the widespread genus Acanthodactylus (Reptilia: Lacertidae)
Jazyk angličtina Země Spojené státy americké Médium print-electronic
Typ dokumentu časopisecké články
PubMed
27395778
DOI
10.1016/j.ympev.2016.07.003
PII: S1055-7903(16)30150-6
Knihovny.cz E-zdroje
- Klíčová slova
- Arabia, Diversification, Molecular clock, Phylogeography, Systematics, Taxonomy,
- MeSH
- biologická evoluce MeSH
- cytochromy b klasifikace genetika MeSH
- DNA chemie izolace a purifikace metabolismus MeSH
- fylogeneze MeSH
- fylogeografie MeSH
- ještěři klasifikace genetika MeSH
- mitochondriální DNA genetika MeSH
- pouštní klima MeSH
- RNA ribozomální klasifikace genetika MeSH
- sekvenční analýza DNA MeSH
- vznik druhů (genetika) MeSH
- zvířata MeSH
- Check Tag
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- Názvy látek
- cytochromy b MeSH
- DNA MeSH
- mitochondriální DNA MeSH
- RNA ribozomální MeSH
- RNA, ribosomal, 12S MeSH Prohlížeč
Acanthodactylus lizards are among the most diverse and widespread diurnal reptiles in the arid regions spanning from North Africa across to western India. Acanthodactylus constitutes the most species-rich genus in the family Lacertidae, with over 40 recognized species inhabiting a wide variety of dry habitats. The genus has seldom undergone taxonomic revisions, and although there are a number of described species and species-groups, their boundaries, as well as their interspecific relationships, remain largely unresolved. We constructed a multilocus phylogeny, combining data from two mitochondrial (12S, cytb) and three nuclear (MC1R, ACM4, c-mos) markers for 302 individuals belonging to 36 known species, providing the first large-scale time-calibrated molecular phylogeny of the genus. We evaluated phylogenetic relationships between and within species-groups, and assessed Acanthodactylus biogeography across its known range. Acanthodactylus cladogenesis is estimated to have originated in Africa due to vicariance and dispersal events from the Oligocene onwards. Radiation started with the separation into three clades: the Western and scutellatus clades largely distributed in North Africa, and the Eastern clade occurring mostly in south-west Asia. Most Acanthodactylus species diverged during the Miocene, possibly as a result of regional geological instability and climatic changes. We support most of the current taxonomic classifications and phylogenetic relationships, and provide genetic validity for most species. We reveal a new distinct blanfordii species-group, suggest new phylogenetic positions (A. hardyi, A. masirae), and synonymize several species and subspecies (A. lineomaculatus, A. boskianus khattensis and A. b. nigeriensis) with their phylogenetically closely-related species. We recommend a thorough systematic revision of taxa, such as A. guineensis, A. grandis, A. dumerilii, A. senegalensis and the pardalis and erythrurus species-groups, which exhibit high levels of intraspecific variability, and clear evidence of phylogenetic complexity.
Department of Zoology National Museum Cirkusová 1740 19300 Prague 9 Czech Republic
Institut de Biologia Evolutiva Passeig Maritím de la Barceloneta 37 49 08003 Barcelona Spain
Museo Civico de Storia Naturale via San Francesco di Sales 188 1 10022 Carmagnola Torino Italy
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