Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site.

By analysing ancient DNA (aDNA) from 74 14C-dated individuals of the extinct South Island giant moa (Dinornis robustus) of New Zealand, we identified four dyads of closely related adult females. Although our total sample included bones from four fossil deposits located within a 10 km radius, these e...

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Main Authors: Allentoft, M., Heller, R., Holdaway, R., Bunce, Michael
Format: Journal Article
Published: 2015
Online Access:http://hdl.handle.net/20.500.11937/34547
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author Allentoft, M.
Heller, R.
Holdaway, R.
Bunce, Michael
author_facet Allentoft, M.
Heller, R.
Holdaway, R.
Bunce, Michael
author_sort Allentoft, M.
building Curtin Institutional Repository
collection Online Access
description By analysing ancient DNA (aDNA) from 74 14C-dated individuals of the extinct South Island giant moa (Dinornis robustus) of New Zealand, we identified four dyads of closely related adult females. Although our total sample included bones from four fossil deposits located within a 10 km radius, these eight individuals had all been excavated from the same locality. Indications of kinship were based on high pairwise genetic relatedness (rXY) in six microsatellite markers genotyped from aDNA, coupled with overlapping radiocarbon ages. The observed rXY values in the four dyads exceeded a conservative cutoff value for potential relatives obtained from simulated data. In three of the four dyads, the kinship was further supported by observing shared and rare mitochondrial haplotypes. Simulations demonstrated that the proportion of observed dyads above the cutoff value was at least 20 times higher than expected in a randomly mating population with temporal sampling, also when introducing population structure in the simulations. We conclude that the results must reflect social structure in the moa population and we discuss the implications for future aDNA research.
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spelling curtin-20.500.11937-345472017-09-13T15:14:32Z Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site. Allentoft, M. Heller, R. Holdaway, R. Bunce, Michael By analysing ancient DNA (aDNA) from 74 14C-dated individuals of the extinct South Island giant moa (Dinornis robustus) of New Zealand, we identified four dyads of closely related adult females. Although our total sample included bones from four fossil deposits located within a 10 km radius, these eight individuals had all been excavated from the same locality. Indications of kinship were based on high pairwise genetic relatedness (rXY) in six microsatellite markers genotyped from aDNA, coupled with overlapping radiocarbon ages. The observed rXY values in the four dyads exceeded a conservative cutoff value for potential relatives obtained from simulated data. In three of the four dyads, the kinship was further supported by observing shared and rare mitochondrial haplotypes. Simulations demonstrated that the proportion of observed dyads above the cutoff value was at least 20 times higher than expected in a randomly mating population with temporal sampling, also when introducing population structure in the simulations. We conclude that the results must reflect social structure in the moa population and we discuss the implications for future aDNA research. 2015 Journal Article http://hdl.handle.net/20.500.11937/34547 10.1038/hdy.2015.48 unknown
spellingShingle Allentoft, M.
Heller, R.
Holdaway, R.
Bunce, Michael
Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site.
title Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site.
title_full Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site.
title_fullStr Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site.
title_full_unstemmed Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site.
title_short Ancient DNA microsatellite analyses of the extinct New Zealand giant moa (Dinornis robustus) identify relatives within a single fossil site.
title_sort ancient dna microsatellite analyses of the extinct new zealand giant moa (dinornis robustus) identify relatives within a single fossil site.
url http://hdl.handle.net/20.500.11937/34547