Variation in cytochrome-b haplotypes suggests a new species of Zygodontomys (Rodentia: Cricetidae) endemic to isla coiba, Panama

Publio González, Yadéeh E. Sawyer, Mario Avila, Aníbal G. Armién, Blas Armién, Joseph A. Cook

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The identity of two insular populations of rodents of the nominal species, Zygodontomys brevicauda (Allen & Chapman, 1893), from the Veragua Archipelago was examined. The mitochondrial cytochrome-b gene was sequenced from specimens collected on Isla Coiba (n = 10), Isla Cébaco (n = 3) and on the nearby Peninsula Azuero (n = 3) in Panama and compared with sequences of Z. brevicauda and a number of other related species from GenBank. For Panama, phylogenetic analyses identified two clades within Zygodontomys Allen, 1897; one representing Isla Coiba and another clade composed of rats from Isla Cébaco and from the mainland on the Peninsula Azuero, as well as a GenBank sequence of Z. brevicauda from Venezuela. We suggest that the population from Isla Coiba may represent a previously undescribed species of sigmodontine rodent that is endemic to this Pacific Island.

Original languageEnglish (US)
Pages (from-to)660-665
Number of pages6
JournalZoologia
Volume27
Issue number4
DOIs
StatePublished - Aug 2010

Keywords

  • Cébaco
  • Island
  • Mammal
  • Panamá

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