犬类形态的涌现与多样化
种群与进化
2025-12-09 v1
摘要
犬类因其与人类的长期关联而表现出非凡的形态多样性。试图确定犬类形态变异何时开始扩大受到更新世标本数量有限、遗骸碎片性质以及基于骨骼形态区分早期犬与狼的困难的限制。在本研究中，我们使用三维几何形态测量学分析了过去50,000年间643个犬科颅骨的大小和形状。我们的分析表明，独特的犬类形态大约在距今11,000个校准年前首次出现，而早期全新世犬类中已经存在相当大的表型多样性。因此，这种变异在19世纪开始塑造现代犬品种的强烈人工选择之前许多千年就已经出现。
引用
@article{arxiv.2512.07413,
title = {The emergence and diversification of dog morphology},
author = {Allowen Evin and Carly Ameen and Colline Brassard and Sophie Dennis and Ekaterina E Antipina and Vincent Bonhomme and Myriam Boudadi-Maligne and Kate Britton and Francisco Gil Cano and Ruth F Carden and Julien Claude and Lídia Colominas and Stefan Curth and Sergey Egorovich Fedorov and Joan Frances and Daniela C Kalthoff and Andrew C Kitchener and Rick Knecht and Pavel Kosintsev and Anna Linderholm and Robert Losey and Ilia Merts and Viktor Merts and Maria Mostadius and Mark Omura and Vedat Onar and Alan K Outram and Joris Peters and André Rehazek and Erika Rosengren and Mikhail Sablin and Paul Sciulli and Maria Seguí and Z. Jack Tseng and Emma Usmanova and Victor Varfolomeev and Susan Crockford and Yaroslav Kuzmin and Laurent Frantz and Keith Dobney and Greger Larson},
journal= {arXiv preprint arXiv:2512.07413},
year = {2025}
}