In order to elucidate mitochondrial evolution and resolve the phylogeny of the widely distributed European green lizards (Lacerta viridis complex), we determined 16 mitochondrial genomes from a representative sampling of the four previously identified major clades corresponding to L. bilineata (western distribution range), L. viridis (most of the eastern distribution range), the unnamed Adriatic (or West Balkan) and the Turkish þ south-eastern European clades. The mitogenomes were on average 17,162 bp long with a canonical vertebrate gene inventory of 13 protein-coding genes, 22 transfer RNA genes, 2 ribosomal RNA genes and a long non-coding Control Region. We detected several almost completely clade-specific insert and tandem-repeat signatures. Phylogenetic analyses using all 13 protein-coding genes as well as rRNA-and tRNA-coding sequences from a total of 20 mitogenomes inferred a resolved branching pattern of the four divergent clades. The Turkish clade is strongly supported as sister to all other members of the complex. Within the monophylum comprising the remaining clades, L viridis is sister to a clade containing L. bilineata and the Adriatic clade. Unexpectedly, one specimen of western Italy (Calambrone, Pisa)which is within the distribution range of L. bilineataclustered together with the Adriatic clade with high bootstrap support, calling for further research on the biogeography of the L. viridis complex. Integrating our results with those of previous studies suggest that the lineages have reached the level of distinct taxa, but to determine whether they have become fully independent lineages on the species level requires further research that tackles nuclear genomic variation of all four clades and the viability of hybrids and gene flow within putative hybrid zones.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.