The classification of the North American darters (Percidae: Etheostomatinae) has been a subject of historical interest and rigorous debate. Conflicting morphological and molecular phylogenetic ...

Phylogeny is the representation of the evolutionary history and relationships between groups of organisms. The results are represented in a phylogenetic tree that provides a visual output of ...

This is a preview. Log in through your library . Abstract We compared the utility of five nuclear gene segments amplified with type I sequence-tagged site (STS) primers versus the complete ...

A clade, derived from ancient Greek, is a group of organisms that are derived from a common ancestor and its lineal descendants. A clade is also subtypes, genotypes, or groups that all arise from a ...

The systematics, morphology, and distributions are summarized for the 91 species and 2 subspecies of New World Opostegidae. A phylogenetic analysis using the 'parsimony rachet' in Winclada and based ...