[1] Univ Oxford, Dept Zool, Oxford OX1 3PS, England
[2] Massey Univ, Allan Wilson Ctr Mol Ecol & Evolut, Palmerston North, New Zealand
[3] Univ Adelaide, Australian Ctr Ancient DNA Earth & Environm Sci, Adelaide, SA 5005, Australia
[4] Univ Auckland, Dept Comp Sci, Auckland 1, New Zealand
[5] Univ Auckland, Bioinformat Inst, Auckland 1, New Zealand