Minimal genetic divergence among South American samples of the water opossum Chironectes minimus: Evidence for transcontinental gene flow?

Robert S. Voss, Sharon A. Jansa

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Cytochrome b sequences from South American specimens of the water opossum Chironectes minimus exhibit uncorrected pairwise differences of 0.6% or less among samples collected thousands of kilometers apart (in Guyana, Bolivia and southeastern Brazil). Despite published evidence of population divergence from recent analyses of craniodental morphology, our results suggest extensive gene flow or recent range expansion across the South American landscapes currently occupied by this seldom-collected species.

Original languageEnglish (US)
Pages (from-to)190-192
Number of pages3
JournalMammalia
Volume83
Issue number2
DOIs
StatePublished - Mar 1 2019

Bibliographical note

Publisher Copyright:
© 2019 Walter de Gruyter GmbH, Berlin/Boston.

Keywords

  • Chironectes
  • cytochrome b
  • gene flow
  • subspecies
  • taxonomy

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