Date of Award

Spring 2013

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Biological Sciences

Program/Concentration

Biology

Committee Director

Kent E. Carpenter

Committee Member

Paul H. Barber

Committee Member

Lisa Horth

Call Number for Print

Special Collections LD4331.B46 R39 2013

Abstract

The Coral Triangle (CT) is a hotspot for marine species diversity as well as for intraspecific genetic diversity. Here, nuclear RAG2 and mitochondrial D-Loop genes were used to identify deep genetic divergence among Dascyllus aruanus (Linnaeus, 1758) populations across relatively short scales within the CT. Mitochondrial clades different by greater than 20 mutational steps were geographically isolated from one another across the distance between Java and the Lesser Sunda Islands, and also east and west across the Philippines. Evidence for population structure in the Sulu Sea and at the Lesser Sunda Islands is also identified. The results suggest that the Sulu Sea throughflow, Bohol Sea throughflow, Indonesian throughflow, signatures of extinction events &om Pleistocene land barriers, and other past and present forces are potential factors leading to lineage divergence of D. aruanus, and these hypotheses should be tested in further studies.

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In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

DOI

10.25777/7dc8-4n72

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