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Title: Evaluating chloroplast DNA in prehistoric Texas coprolites: medicinal, dietary, or ambient ancient DNA?
Authors: Reinhard, Karl J.
Chaves, Sergio M.
Jones, John G.
Iñiguez, Alena Mayo
Affilliation: University of Nebraska Lincoln. School of Natural Resources. Lincoln, NE, USA.
Fundação Oswaldo Cruz. Escola Nacional de Saúde Pública Sérgio Arouca. Laboratório de Ecologia. Rio de Janeiro, RJ, Brasil.
Washington State University. Department of Anthropology. Pullman, WA, USA.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Genética Molecular de Microorganismos. Rio de Janeiro, RJ. Brasil.
Abstract: Molecular analysis of coprolites from Hinds Cave, Texas recovered chloroplast DNA sequences. The sequences were interpreted as evidence of diet. We analyzed 19 Hinds Cave coprolites to evaluate the potential sources of the chloroplast DNA (cpDNA) and compared our results to previous studies. This review shows that some cpDNA sequences could be from well-known prehistoric plants foods. Some other sequences could have come from ambient plant material in the guts of small animals eaten by humans in antiquity. Using pollen concentration analysis, we identify sources of ambient plant material which could have been inhaled or imbibed. It is even possible that cpDNA sequences are from proplastids within ambient pollen grains themselves. However, three sequence types cannot be explained as resulting from only dietary or ambient sources. We suggest instead that these might be from medicinal or hallucinogenic plants. We compared these three sequences to existing sequences in the GenBank. We found that these sequences are 100% matches for Rhamnus, Fouquieria, and Solanum.
Keywords: Molecular biology
Pollen concentration
Ambient plant residue
keywords: Biologia molecular
Concentração de pólen
Resíduo da planta ambiental
Issue Date: 2008
Publisher: Elsevier
Citation: REINHARD, Karl J. et al. Evaluating chloroplast DNA in prehistoric Texas coprolites: medicinal, dietary, or ambient ancient DNA?. Journal of Archaeological Science, v. 35, p.1748-1755, 2008.
DOI: 10.1016/j.jas.2007.11.013
ISSN: 0305-4403
Copyright: restricted access
Appears in Collections:IOC - Artigos de Periódicos

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