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石骨和牙,大腿骨和骨DNA分析之间的比较来自退化的骨遗骸

Christian Haarkötter¹, Diana C Vinueza-Espinosa¹, Xiomara Gálvez¹

¹Laboratory of Genetic Identification, Department of Legal Medicine, Toxicology and Physical Anthropology, Faculty of Medicine, University of Granada, Granada, Spain.

Electrophoresis

|July 20, 2023

概括

石油骨的DNA产量明显高于股骨或骨样本,为遗传分析提供更优质的质量. 这使得石骨和牙非常适合从退化的骨遗骸中进行DNA类型化.

科学领域:

法医人类学法医人类学
分子生物学分子生物学
生物考古学的生物考古学

背景情况:

骨遗骸对于长期生物材料的保存至关重要.
环境因素 (温度,湿度,pH) 显著影响骨样本中的DNA保存.
传统的骨样本,如大腿骨和牙,由于DNA产量变化,对DNA提取具有挑战性.

研究的目的:

与其他骨元素相比,评估石油骨在DNA提取方面的效率.
为了比较从骨,牙,大腿骨和骨的DNA产量和形状质量.
在具有挑战性的法医和生物考古学背景下确定DNA类型的最佳样本类型.

主要方法:

从38个个体中选择了88个骨样本.
采用有机提取协议进行DNA隔离.
使用Quantifiler Trio套件量化DNA,并使用GlobalFiler套件进行放大.

主要成果:

与其他骨样本相比,石油骨的DNA产量是其他骨样本的15-30倍.
来自骨的DNA档案显示,与牙相比,对等位基因的检测是可比的.
石油骨中的较高DNA量导致了更具信息性和更高质量的DNA配置文件.

结论:

与长骨 (大腿骨,骨) 相比,骨是从骨遗骸中获得DNA的优越来源.
石化骨头和牙为DNA类型化提供了最好的基质,特别是在降解的样本中.
为法医和生物考古学DNA分析推石骨或牙,以最大限度地提高成功率.

关键词:

退化的DNA退化.法医遗传学法医遗传学人类遗骸的人类遗骸石油的骨头石油的骨头骨的残骸是一个骨残骸.

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