Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/87814
Citations
Scopus Web of Science® Altmetric
?
?
Type: Journal article
Title: Molecular genetic evidence for the place of origin of the Pacific rat, Rattus exulanso
Author: Thomson, V.
Aplin, K.
Cooper, A.
Hisheh, S.
Suzuki, H.
Maryanto, I.
Yap, G.
Donnellan, S.
Citation: PLoS One, 2014; 9(3):e91356-1-e91356-11
Publisher: Public Library of Science
Issue Date: 2014
ISSN: 1932-6203
1932-6203
Statement of
Responsibility: 
Vicki Thomson, Ken P. Aplin, Alan Cooper, Susan Hisheh, Hitoshi Suzuki, Ibnu Maryanto, Grace Yap, Stephen C. Donnellan
Abstract: Commensal plants and animals have long been used to track human migrations, with Rattus exulans (the Pacific rat) a common organism for reconstructing Polynesian dispersal in the Pacific. However, with no knowledge of the homeland of R. exulans, the place of origin of this human-commensal relationship is unknown. We conducted a mitochondrial DNA phylogeographic survey of R. exulans diversity across the potential natural range in mainland and Island Southeast Asia in order to establish the origin of this human-commensal dyad. We also conducted allozyme electrophoresis on samples from ISEA to obtain a perspective on patterns of genetic diversity in this critical region. Finally, we compared molecular genetic evidence with knowledge of prehistoric rodent faunas in mainland and ISEA. We find that ISEA populations of R. exulans contain the highest mtDNA lineage diversity including significant haplotype diversity not represented elsewhere in the species range. Within ISEA, the island of Flores in the Lesser Sunda group contains the highest diversity in ISEA (across all loci) and also has a deep fossil record of small mammals that appears to include R. exulans. Therefore, in addition to Flores harboring unusual diversity in the form of Homo floresiensis, dwarfed stegodons and giant rats, this island appears to be the homeland of R. exulans.
Keywords: Animals; Muridae; Cytochromes b; Isoenzymes; Genetics, Population; Evolution, Molecular; Phylogeny; Haplotypes; Molecular Sequence Data; Datasets as Topic
Rights: © 2014 Thomson et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
RMID: 0030009028
DOI: 10.1371/journal.pone.0091356
Grant ID: http://purl.org/au-research/grants/arc/DP0988863
Appears in Collections:Earth and Environmental Sciences publications

Files in This Item:
File Description SizeFormat 
hdl_87814.pdfPublished version1.16 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.