Rivers of Indochina as potential drivers of lineage diversification in the spotted flying lizard (Draco maculatus) species complex

Randy L Klabacka; Perry L Wood Jr; Jimmy A McGuire; Jamie R Oaks; L Lee Grismer; Jesse L Grismer; Anchalee Aowphol; Jack W Sites Jr

doi:10.1016/j.ympev.2020.106861

Rivers of Indochina as potential drivers of lineage diversification in the spotted flying lizard (Draco maculatus) species complex

Mol Phylogenet Evol. 2020 Sep:150:106861. doi: 10.1016/j.ympev.2020.106861. Epub 2020 Jun 1.

Authors

Randy L Klabacka¹, Perry L Wood Jr², Jimmy A McGuire³, Jamie R Oaks⁴, L Lee Grismer⁵, Jesse L Grismer⁶, Anchalee Aowphol⁷, Jack W Sites Jr⁸

Affiliations

¹ Department of Biological Sciences and Museum of Natural History, Auburn University, 331 Funchess Hall, Auburn, AL 36849, United States; Department of Biology and M.I. Bean Life Science Museum, Brigham Young University, 150 East Bulldog Boulevard, Provo, UT 84602, United States. Electronic address: klabacka.randy@auburn.edu.
² Department of Biological Sciences and Museum of Natural History, Auburn University, 331 Funchess Hall, Auburn, AL 36849, United States; Department of Biology and M.I. Bean Life Science Museum, Brigham Young University, 150 East Bulldog Boulevard, Provo, UT 84602, United States. Electronic address: plw0013@auburn.edu.
³ Museum of Vertebrate Zoology, University of California, 3101 Valley Life Sciences Building, Berkeley, CA 94720, United States. Electronic address: mcguirej@berkeley.edu.
⁴ Department of Biological Sciences and Museum of Natural History, Auburn University, 331 Funchess Hall, Auburn, AL 36849, United States. Electronic address: jro0014@auburn.edu.
⁵ Herpetology Laboratory, Department of Biology, La Sierra University, 4500 Riverwalk Parkway, Riverside, CA 92515, United States. Electronic address: lgrismer@lasierra.edu.
⁶ Herpetology Laboratory, Department of Biology, La Sierra University, 4500 Riverwalk Parkway, Riverside, CA 92515, United States. Electronic address: jgrismer@lasierra.edu.
⁷ Faculty of Science, Department of Zoology, Kasetsart University, Chatuchak, Bankok, Thailand. Electronic address: anchalee.a@ku.th.
⁸ Department of Biology and M.I. Bean Life Science Museum, Brigham Young University, 150 East Bulldog Boulevard, Provo, UT 84602, United States; Department of Biology, Austin Peay State University, Clarksville, TN 37044, United States.

PMID: 32497832
DOI: 10.1016/j.ympev.2020.106861

Abstract

Southeast Asia hosts a rich concentration of biodiversity within multiple biodiversity hotspots. Indochina, a region with remarkably high levels of in situ diversification, possesses five major rivers (Ayeyarwady, Chiang Mai, Mekong, Red, and Salween), several of which coincide with phylogenetic breaks of terrestrial taxa. Draco maculatus possesses a range that stretches across Indochina, which widespread geographic distribution along with potential discrete variation within subspecies alludes to the possibility of this taxon constituting multiple divergent lineages. Using sequence data from three mitochondrial (12S, 16S, and ND2) and three nuclear (BDNF, CMOS, and PNN) genes, we provide the first estimated phylogeny of this hypothesized species complex and examine its phylogeographic architecture with maximum likelihood and Bayes factor delimitation (BFD) approaches. Our results support multiple divergent lineages with phylogenetic breaks coincident with rivers, indicating that river barriers may be contributing to the elevated levels of in situ diversification of Indochina.

Keywords: Bayes Factor delimitation; Draco; Indochina; Phylogeography; Southeast Asia; Species complex.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

Animals
Bayes Theorem
Biodiversity
Brain-Derived Neurotrophic Factor / classification
Brain-Derived Neurotrophic Factor / genetics
Indochina
Lizards / classification*
Lizards / genetics
Mitochondria / genetics
NADH Dehydrogenase / classification
NADH Dehydrogenase / genetics
Phylogeny
Phylogeography
Protein Subunits / classification
Protein Subunits / genetics
RNA, Ribosomal / classification
RNA, Ribosomal / genetics

Substances

Brain-Derived Neurotrophic Factor
Protein Subunits
RNA, Ribosomal
RNA, ribosomal, 12S
NADH Dehydrogenase