期刊
AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY
卷 151, 期 1, 页码 102-109出版社
WILEY-BLACKWELL
DOI: 10.1002/ajpa.22262
关键词
archaeogenetics; medieval bones; collagen; hydroxyapatite; aminoacid racemization
资金
- Estudio Antropologico y Genetico de los Reyes Privativos de Aragon and Grupo Consolidado B44: Epidemiologia Molecular from the Diputacion General de Aragon (DGA), Spain
Ancient molecular typing depends on DNA survival in archaeological bones. Finding valuable tools to predict DNA presence in ancient samples, which can be measured prior to undertaking a genetic study, has become an important issue as a consequence of the peculiarities of archaeological samples. Since the survival of DNA is explained by complex interrelations of multiple variables, the aim of the present study was to analyze morphological, structural, chemical, and biological aspects of a set of medieval human bones, to provide an accurate reflection of the state of preservation of the bony components and to relate it with DNA presence. Archaeological bones that yielded amplifiable DNA presented high collagen content (generally more than 12%), low racemization values of aspartic acid (lesser than 0.08), leucine and glutamic acid, low infrared splitting factor, small size of crystallite, and more compact appearance of bone in the scanning electron micrographs. Whether these patterns are characteristic of ancient bones or specific of each burial site or specimen requires further investigation. Am J Phys Anthropol 151:102-109, 2013. (C) 2013 Wiley Periodicals, Inc.
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