Title: Mitochondrial DNA variation in Karkar Islanders
Authors: Ricaut, Fran├žois-Xavier ×
Issue Date: 2008
Publisher: Published for the Galton Laboratory by Cambridge University Press
Series Title: Annals of Human Genetics vol:72 pages:349-367
Abstract: We analyzed 375 base pairs (bp) of the first hypervariable region (HVS-I) of the mitochondrial DNA (mtDNA) control
region and intergenic COII/tRNALys 9-bp deletion from 47 Karkar Islanders (north coast of Papua New Guinea)
belonging to the Waskia Papuan language group. To address questions concerning the origin and evolution of this
population we compared the Karkar mtDNA haplotypes and haplogroups to those of neighbouring East Asians and
Oceanic populations. The results of the phylogeographic analysis show grouping in three different clusters of the
Karkar Islander mtDNA lineages: one group of lineages derives from the first Pleistocene settlers of New Guinea-Island
Melanesia, a second set derives from more recent arrivals of Austronesian speaking populations, and the third contains
lineages specific to the Karkar Islanders, but still rooted to Austronesian and New Guinea-Island Melanesia populations.
Our results suggest (i) the absence of a strong association between language and mtDNA variation and, (ii) reveal that the
mtDNA haplogroups F1a1, M7b1 and E1a, which probably originated in Island Southeast Asia and may be considered
signatures of Austronesian population movements, are preserved in the Karkar Islanders but absent in other New Guinea-
Island Melanesian populations. These findings indicate that the Karkar Papuan speakers retained a certain degree of their
own genetic uniqueness and a high genetic diversity. We present a hypothesis based on archaeological, linguistic and
environmental datasets to argue for a succession of (partial) depopulation and repopulation and expansion events, under
conditions of structured interaction, which may explain the variability expressed in the Karkar mtDNA
ISSN: 0003-4800
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Archaeology, Leuven
× corresponding author
# (joint) last author

Files in This Item:

There are no files associated with this item.

Request a copy


All items in Lirias are protected by copyright, with all rights reserved.

© Web of science