Effects of different environmental factors on preservation of DNA in petrous bones: A comparative study of two Slovenian archaeological sites

IF 2.2 3区 医学 Q1 MEDICINE, LEGAL
Pia Kravanja , Aja Golob , Monica Concato , Tamara Leskovar , Irena Zupanič Pajnič
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引用次数: 0

Abstract

DNA preservation is influenced by various external and internal factors that are complexly intertwined. Environmental factors are among the variables that have the most significant impact on preserving genetic material. To better understand their effects, 247 petrous bones from two geographically distinct cemeteries were compared. Molecular genetic methods were used in the study, including a complete demineralization extraction method to obtain the DNA from bone samples and real-time PCR to determine DNA quantity and quality. Statistical analysis was performed to investigate the differences in DNA yield and DNA degradation between petrous bones from the two different Slovenian archeological sites, Ljubljana - Njegoševa and Črnomelj. Results showed significantly higher DNA yield and lower degradation index in petrous bones from the Ljubljana - Njegoševa cemetery. The differences emphasize the impact of environmental factors, especially that of temperature, pH and permeability of the soil, on DNA degradation. This study provides valuable insights into understanding the complexity of DNA preservation in skeletal remains from different types of environments.
不同环境因素对岩石骨骼中DNA保存的影响:两个斯洛文尼亚考古遗址的比较研究
DNA保存受到各种外部和内部因素的影响,这些因素复杂地交织在一起。环境因素是对遗传物质保存影响最大的变量之一。为了更好地了解它们的影响,研究人员对来自两个地理位置不同的墓地的247块石骨进行了比较。本研究采用分子遗传学方法,采用完全脱矿提取法从骨样品中提取DNA,采用实时荧光定量PCR法测定DNA的数量和质量。对斯洛文尼亚卢布尔雅那(Njegoševa和Črnomelj)两个不同考古遗址的石质骨进行了DNA产率和DNA降解差异的统计分析。结果表明,卢布尔雅那- Njegoševa墓地的石质骨头的DNA产量显著提高,降解指数显著降低。这些差异强调了环境因素,特别是温度、pH和土壤渗透性对DNA降解的影响。这项研究提供了有价值的见解,以了解DNA保存的复杂性骨骼遗骸来自不同类型的环境。
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来源期刊
Forensic science international
Forensic science international 医学-医学:法
CiteScore
5.00
自引率
9.10%
发文量
285
审稿时长
49 days
期刊介绍: Forensic Science International is the flagship journal in the prestigious Forensic Science International family, publishing the most innovative, cutting-edge, and influential contributions across the forensic sciences. Fields include: forensic pathology and histochemistry, chemistry, biochemistry and toxicology, biology, serology, odontology, psychiatry, anthropology, digital forensics, the physical sciences, firearms, and document examination, as well as investigations of value to public health in its broadest sense, and the important marginal area where science and medicine interact with the law. The journal publishes: Case Reports Commentaries Letters to the Editor Original Research Papers (Regular Papers) Rapid Communications Review Articles Technical Notes.
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