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AuthorDriscoll, Carlos A.
AuthorYamaguchi, Nobuyuki
AuthorBar-Gal, Gila Kahila
AuthorRoca, Alfred L.
AuthorLuo, Shujin
AuthorMacdonald, David W.
AuthorO'Brien, Stephen J.
Available date2016-03-31T14:00:59Z
Publication Date2009-01
Publication NamePLoS ONE
CitationDriscoll CA, Yamaguchi N, Bar-Gal GK, Roca AL, Luo S, Macdonald DW, et al. (2009) Mitochondrial Phylogeography Illuminates the Origin of the Extinct Caspian Tiger and Its Relationship to the Amur Tiger. PLoS ONE 4(1): e4125.�
ISSN1932-6203
URIhttp://dx.doi.org/10.1371/journal.pone.0004125
URIhttp://hdl.handle.net/10576/4310
AbstractThe Caspian tiger (Panthera tigris virgata) flourished in Central Asian riverine forest systems in a range disjunct from that of other tigers, but was driven to extinction in 1970 prior to a modern molecular evaluation. For over a century naturalists puzzled over the taxonomic validity, placement, and biogeographic origin of this enigmatic animal. Using ancient-DNA (aDNA) methodology, we generated composite mtDNA haplotypes from twenty wild Caspian tigers from throughout their historic range sampled from museum collections. We found that Caspian tigers carry a major mtDNA haplotype differing by only a single nucleotide from the monomorphic haplotype found across all contemporary Amur tigers (P. t. altaica). Phylogeographic analysis with extant tiger subspecies suggests that less than 10,000 years ago the Caspian/Amur tiger ancestor colonized Central Asia via the Gansu Corridor (Silk Road) from eastern China then subsequently traversed Siberia eastward to establish the Amur tiger in the Russian Far East. The conservation implications of these findings are far reaching, as the observed genetic depletion characteristic of modern Amur tigers likely reflects these founder migrations and therefore predates human influence. Also, due to their evolutionary propinquity, living Amur tigers offer an appropriate genetic source should reintroductions to the former range of the Caspian tiger be implemented.
SponsorNational Cancer Institute, National Institutes of Health, under contract N01-CO-12400.�
Languageen
PublisherPublic Library of Science
SubjectTigers
SubjectHaplotypes
SubjectMitochondrial DNA
SubjectPhylogenetic analysis
SubjectPaleogenetics
SubjectPhylogenetics
SubjectPolymerase chain reaction
TitleMitochondrial phylogeography illuminates the origin of the extinct caspian tiger and its relationship to the amur tiger
TypeArticle
Issue Number1
Volume Number4


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