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Tempo and Mode of Evolutionary Radiation in Iguanian Lizards

A comparative analytical framework for examining phylogenetic patterns of diversification and morphological disparity with data from four iguanian-lizard taxa that exhibit substantially different patterns of evolution is presented.
AAAS (opens in a new tab)

Genetic variation increases during biological invasion by a Cuban lizard

It is shown that one key to invasion success may be the occurrence of multiple introductions that transform among- population variation in native ranges to within-population variation in introduced areas.
Springer Nature (opens in a new tab)

Phylogenetic relationships of toads in the Bufo bufo species group from the eastern escarpment of the Tibetan Plateau: a case of vicariance and dispersal.

The most parsimonious phylogenetic tree places the high-elevation species, B. andrewsi, as the sister taxon to the other Asian Bufo populations; these high-Elevation populations are postulated to have had a vicariant origin approximately 5 million years before present.
PubMed (opens in a new tab)

Phylogenetic relationships among Agamid lizards of the Laudakia caucasia species group: testing hypotheses of biogeographic fragmentation and an area cladogram for the Iranian Plateau.

Phylogenetic relationships within the Laudakia caucasia species group on the Iranian Plateau were investigated using 1708 aligned bases of mitochondrial DNA sequence from the genes encoding ND1 (subunit one of NADH dehydrogenase) and COI, and every branch of the phylogenetic tree is well supported.
PubMed (opens in a new tab)

Molecular phylogenetics of squamata: the position of snakes, amphisbaenians, and dibamids, and the root of the squamate tree.

A molecular phylogenetic study of 69 squamate species suggests that similar states in Sphenodon and Iguania result from homoplasy, and species previously placed in Scleroglossa, Varanoidea, and several other higher taxa do not form monophyletic groups.
PubMed (opens in a new tab)

Phylogenetic relationships in the iguanid lizard genus Liolaemus: multiple origins of viviparous reproduction and evidence for recurring Andean vicariance and dispersal

Phylogenetic relationships within the iguanid lizard genus Liolaemus are investigated using 1710 aligned base positions of mitochondrial DNA sequences, representing coding regions for eight tRNAs, ND2, and portions of ND1 and COL to support at least six independent origins of viviparity.
Publisher (opens in a new tab)

Molecular phylogenetics and historical biogeography among salamandrids of the "true" salamander clade: rapid branching of numerous highly divergent lineages in Mertensiella luschani associated with…

Tests using four-taxon subsamples suggest that these lineages diverged nearly simultaneously in the Late Miocene, approximately 6 to 8 million years ago, when extensive uplifting of Anatolia occurred in response to the Arabian collision.
PubMed (opens in a new tab)

Molecular phylogenetics, tRNA evolution, and historical biogeography in anguid lizards and related taxonomic families.

Phylogenetic analysis of evolutionary changes in the gene encoding tRNA(Cys) suggests gradual reduction of dihydrouridine (D) stems by successive deletion of bases in some lineages, which contrasts with the one observed for parallel elimination of the D-stem in mitochondrial tRNAs of eight other reptile groups, in which replication slippage produces direct repeats.
PubMed (opens in a new tab)

Gene lineages and eastern North American palaeodrainage basins: phylogeography and speciation in salamanders of the Eurycea bislineata species complex

The molecular genetic results corroborate geological and faunistic evidence suggesting that palaeodrainage connections altered by glacial advances and headwater erosion occurring between the mid‐Miocene and Pleistocene epochs explain regional patterns of biodiversity in eastern North American streams.
Wiley (opens in a new tab)

Evolutionary Shifts in Three Major Structural Features of the Mitochondrial Genome Among Iguanian Lizards

It is proposed that changes to the secondary structure of tRNACys may destroy function of the origin for light-strand replication which, in turn, may facilitate shifts in gene order.
Springer Nature (opens in a new tab)
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