Modern attempts to produce biogeographic maps focus on the distribution of species, and
the maps are typically drawn without phylogenetic considerations. Here, we generate a …

The mitochondrial cytochrome b (cyt-b) gene is widely used in systematic studies to resolve
divergences at many taxonomic levels. The present study focuses mainly on the utility of cyt …

Tests for incongruence as an indicator of among-data partition conflict have played an
important role in conditional data combination. When such tests reveal significant …

Several composite universal trees connected by an ancestral gene duplication have been
used to root the universal tree of life. In all cases, this root turned out to be in the eubacterial …

Phylogenetic relationships among the Tyrannides were assessed using over 4000 base
pairs of nuclear recombination activating 1 (RAG‐1) and 2 (RAG‐2) DNA sequence data …

We present a phylogenetic hypothesis and novel, rank-free classification for all extant
species of softshell turtles (Testudines: Trionychidae). Our data set included DNA sequence …

Crotalus viridis, the western rattlesnake, ranges throughout western North America and has
been divided into at least eight subspecies. However, the validity of and relationships …

We have investigated the effects of different among-site rate variation models on the
estimation of substitution model parameters, branch lengths, topology, and bootstrap …

Interfamilial relationships of the New World songbird family Vireonidae are uncertain. Thus,
we sequenced 3069 bp of four mitochondrial genes (cyt b, ND2, ND3, COI) from 19 taxa in …

For more than a century, members of the traditional avian order Galliformes (ie, pheasants,
partridges, junglefowl, and relatives) have been among the most intensively studied birds …