Two complete mitochondrial genomes from praticolella mexicana perez, 2011 (Polygyridae) and gene order evolution in helicoidea (Mollusca, Gastropoda)

Russell L. Minton, Marco A.Martinez Cruz, Mark L. Farman, Kathryn E. Perez

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Helicoidea is a diverse group of land snails with a global distribution. While much is known regarding the relationships of helicoid taxa, comparatively little is known about the evolution of the mitochondrial genome in the superfamily. We sequenced two complete mitochondrial genomes from Praticolella mexicana Perez, 2011 representing the first such data from the helicoid family Polygyridae, and used them in an evolutionary analysis of mitogenomic gene order. We found the mitochondrial genome of P. mexicana to be 14,008 bp in size, possessing the typical 37 metazoan genes. Multiple alternate stop codons are used, as are incomplete stop codons. Mitogenome size and nucleotide content is consistent with other helicoid species. Our analysis of gene order suggested that Helicoidea has undergone four mitochondrial rearrangements in the past. Two rearrangements were limited to tRNA genes only, and two involved protein coding genes.

Original languageEnglish
Pages (from-to)137-154
Number of pages18
JournalZooKeys
Volume2016
Issue number626
DOIs
StatePublished - Oct 25 2016

Bibliographical note

Publisher Copyright:
© Russell L. Minton et al.

Keywords

  • Convergence
  • Gene rearrangement
  • Homoplasy
  • Mitochondria
  • Phylogeny
  • TRNA

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

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