Molecular Phylogenetics and Evolution 121 (2018) 61–70 Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Molecular phylogeny and divergence of the map turtles (Emydidae: Graptemys) a, b b Robert C. Thomson , Phillip Q. Spinks , H. Bradley Shaﬀer Department of Biology, University of Hawai'i, Honolulu, HI 96822, USA Department of Ecology and Evolutionary Biology, and La Kretz Center for California Conservation Science, Institute of the Environment and Sustainability, University of California, Los Angeles, CA 90095, USA ARTICLE I NFO ABSTRACT Keywords: The map turtles (genus Graptemys) comprise a morphologically diverse clade that forms a major component of Rapid radiation the southeastern US hotspot of chelonian diversity. Map turtles have experienced both recent and rapid di- Deirochelyinae versiﬁcation resulting in long-standing uncertainty regarding species boundaries and phylogenetic relationships Molecular clock within the genus as well as timing of their divergence. We present a phylogeny for the group that includes Multispecies coalescent geographically representative sampling for all described species and subspecies. We make use of an empirical Southeastern United States prior on rates of molecular evolution to estimate divergence times with a molecular clock under a coalescent Turtle conservation framework. Together, the phylogeny and divergence time
Molecular Phylogenetics and Evolution – Elsevier
Published: Apr 1, 2018
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