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动物园MS证实了古代羊和山羊的几何形态识别物种识别
Marine Jeanjean1, Krista McGrath2, Silvia Valenzuela-Lamas3
1Institute of Evolutionary Science-Montpellier (ISEM), University of Montpellier, CNRS, EPHE, IRD, Montpellier, France.
Royal Society open science
|September 29, 2023
概括
几何形态测量成功识别了古代绵羊和山羊的牙,由Zoarcheology通过质谱测量 (ZooMS) 验证. 古代和现代标本之间的差异表明品种或起源对牙形态的影响.
科学领域:
- 生物考古学的生物考古学
- 动物园 考古学
- 几何形态学 几何形态学 几何形态学
背景情况:
- 区分羊和山羊的遗骸对于理解古代畜牧业至关重要.
- 几何形态测量 (GMM) 显示出用于识别孤立牙的希望,但其应用于考古样本的应用需要验证.
- 通过质谱测量 (ZooMS) 的动物考古学提供了一种用于物种识别的分子方法.
研究的目的:
- 为了确定GMM的有效性,用于识别孤立的考古羊和山羊第三下牙.
- 使用ZooMS将转基因生物识别与分子识别进行比较.
- 为了研究现代和考古羊和山羊牙之间的形态差异.
主要方法:
- 基于二维地标的GMM协议应用于109个考古标本.
- 为了进行比较,使用了743只绵羊和山羊的现代参考集合.
- 形态识别与ZooMS分析进行了交叉验证.
主要成果:
- 在109个考古标本中,GMM准确识别了104个,ZooMS证实了这一结果.
- 五个标本在形态学上被错误识别,最初都被归类为山羊.
- 考古牙通常较小,并且在形态上与现代标本不同,这表明了品种或地理影响.
结论:
- 转基因医学是一种经过验证的,非破坏性的方法,用于识别孤立的考古羊和山羊牙.
- 古代和现代卵类动物之间的形态差异凸显了选择性繁殖和地理起源的影响.
- 这项研究为未来对绵羊和山羊的生物考古学研究提供了基础.
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