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Phylogenetic relationships among species groups of the ant genus Myrmecia. | LitMetric

Phylogenetic relationships among species groups of the ant genus Myrmecia.

Mol Phylogenet Evol

Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Kita-ku, Sapporo 060-8589, Japan.

Published: March 2006

AI Article Synopsis

  • Researchers studied the phylogenetic relationships of nine species groups in the Australian ant genus Myrmecia using DNA from two nuclear genes across 38 species and one outgroup.
  • The study found that four species with an occipital carina form a paraphyletic group, while five species without it form a strongly supported monophyletic group.
  • Some groups displayed clear monophyly, but four groups remained uncertain, with the aberrans group identified as more basal among the species lacking an occipital carina, contradicting previous research.

Article Abstract

Phylogenetic relationships among the nine species groups of the predominately Australian ant genus Myrmecia were inferred using 38 Myrmecia species and an outgroup using DNA sequences from two nuclear genes (622nt from 28S rRNA and 1907nt from the long-wave opsin gene). Nothomyrmecia macrops was selected as the most appropriate outgroup based on recent reliable studies showing monophyly of Myrmecia with Nothomyrmecia. The four species groups with an occipital carina (those of gulosa, nigrocincta, urens, and picta) were found to form a paraphyletic and basal assemblage out of which the five species groups lacking an occipital carina (those of aberrans, mandibularis, tepperi, cephalotes, and pilosula) arise as a strongly supported monophyletic assemblage. Monophyly was supported for four groups (those of gulosa, nigrocincta, picta, and mandibularis) but the situation is unclear for four others (those of urens, aberrans, tepperi, and pilosula). The aberrans group appears to be basal within the group lacking an occipital carina; a previous suggestion that it is the sister group to the rest of the genus is thus not supported.

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Source
http://dx.doi.org/10.1016/j.ympev.2005.09.021DOI Listing

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