Por favor, use este identificador para citar o enlazar este ítem: 10.1093/femsmc/xtac006

Título: Understanding the microbial biogeography of ancient human dentitions to guide study design and interpretation
Fecha de publicación: mar-2022
Cita bibliográfica: FEMS Microbes, Vol.3, pag.:1–13
ISSN: 2633-6685
Palabras clave: archaeology
Resumen: The oral cavity is a heterogeneous environment, varying in factors such as pH, oxygen levels, and salivary flow. These factors affect the microbial community composition and distribution of species in dental plaque, but it is not known how well these patterns are reflected in archaeological dental calculus. In most archaeological studies, a single sample of dental calculus is studied per individual and is assumed to represent the entire oral cavity. However, it is not known if this sampling strategy introduces biases into studies of the ancient oral microbiome. Here, we present the results of a shotgun metagenomic study of a dense sampling of dental calculus from four Chalcolithic individuals from the southeast Iberian peninsula (ca. 4500–5000 BP). Interindividual differences in microbial composition are found to be much larger than intraindividual differences, indicating that a single sample can indeed represent an individual in most cases. However, there are minor spatial patterns in species distribution within the oral cavity that should be taken into account when designing a study or interpreting results. Finally, we show that plant DNA identified in the samples is likely of postmortem origin, demonstrating the importance of including environmental controls or additional lines of biomolecular evidence in dietary interpretations.
Autor/es principal/es: Haber Uriarte, M.
Fagernäs, Zandra
Salazar-García, Domingo C.
Avilés Fernández, Azucena
Henry, Amanda G.
Lomba Maurandi, Joaquín
Ozga, Andrew T.
Velsko, Irina M.
Warinner, Christina
URI: http://hdl.handle.net/10201/119263
DOI: 10.1093/femsmc/xtac006
Tipo de documento: info:eu-repo/semantics/article
Derechos: info:eu-repo/semantics/openAccess
Atribución 4.0 Internacional
Descripción: ©<2022>. This manuscript version is made available under the CC-BY 4.0 license http://creativecommons.org/licenses/by/4.0/ This document is the Published manuscript version of a Published Work that appeared in final form in FEMS Microbes. To access the final edited and published work see DOI: 10.1093/femsmc/xtac006
Aparece en las colecciones:Artículos: Prehistoria, Arqueología, Historia Antigua, Historia Medieval y Ciencias y Técnicas Historiográficas

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