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BMC Res Notes. 2014 Nov 26;7:850. doi: 10.1186/1756-0500-7-850.

First-generation linkage map for the European tree frog (Hyla arborea) with utility in congeneric species.

Author information

1
Department of Ecology and Evolution, Biophore building, University of Lausanne, 1015 Lausanne, Switzerland. Christophe.Dufresnes@unil.ch.

Abstract

BACKGROUND:

Western Palearctic tree frogs (Hyla arborea group) represent a strong potential for evolutionary and conservation genetic research, so far underexploited due to limited molecular resources. New microsatellite markers have recently been developed for Hyla arborea, with high cross-species utility across the entire circum-Mediterranean radiation. Here we conduct sibship analyses to map available markers for use in future population genetic applications.

FINDINGS:

We characterized eight linkage groups, including one sex-linked, all showing drastically reduced recombination in males compared to females, as previously documented in this species. Mapping of the new 15 markers to the ~200 My diverged Xenopus tropicalis genome suggests a generally conserved synteny with only one confirmed major chromosome rearrangement.

CONCLUSIONS:

The new microsatellites are representative of several chromosomes of H. arborea that are likely to be conserved across closely-related species. Our linkage map provides an important resource for genetic research in European Hylids, notably for studies of speciation, genome evolution and conservation.

PMID:
25430653
PMCID:
PMC4258042
DOI:
10.1186/1756-0500-7-850
[Indexed for MEDLINE]
Free PMC Article

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