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Biology

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Louisiana State University

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Niche modeling; Phylogeography; Prionurus; Reef fish; Ultraconserved elements; REEF FISHES; ULTRACONSERVED ELEMENTS; EVOLUTIONARY HISTORY; COMPARATIVE PHYLOGEOGRAPHY; PHYLOGENETIC ANALYSIS; HAMLETS HYPOPLECTRUS; GENETIC DIVERSITY; RED-SEA; SPECIATION; BIOGEOGRAPHY

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Genomic, Ecological, And Morphological Approaches To Investigating Species Limits: A Case Study In Modern Taxonomy From Tropical Eastern Pacific Surgeonfishes, Prosanta Chakrabarty Apr 2019

Genomic, Ecological, And Morphological Approaches To Investigating Species Limits: A Case Study In Modern Taxonomy From Tropical Eastern Pacific Surgeonfishes, Prosanta Chakrabarty

Faculty Publications

A wide variety of species are distinguished by slight color variations. However, molecular analyses have repeatedly demonstrated that coloration does not always correspond to distinct evolutionary histories between closely related groups, suggesting that this trait is labile and can be misleading for species identification. In the present study, we analyze the evolutionary history of sister species of Prionurus surgeonfishes in the Tropical Eastern Pacific (TEP), which are distinguished by the presence or absence of dark spots on their body. We examined the species limits in this system using comparative specimen-based approaches, a mitochondrial gene (COI), more than 800 nuclear loci …