Evidência genética de comportamento de cruzamento patrilocal entre grupos Neandertais

terça-feira, dezembro 21, 2010

Genetic evidence for patrilocal mating behavior among Neandertal groups 

Carles Lalueza-Fox a,1, Antonio Rosas b,1, Almudena Estalrrich b, Elena Gigli a, Paula F. Campos c, Antonio García-Tabernero b, Samuel García-Vargas b, Federico Sánchez-Quinto a, Oscar Ramírez a, Sergi Civit d, Markus Bastir b, Rosa Huguet e, David Santamaría f, M. Thomas P. Gilbert c, Eske Willerslev c, and Marco de la Rasilla f 

- Author Affiliations
aInstitute of Evolutionary Biology, Consejo Superior de Investigaciones Cientificas-Universitat Pompeu Fabra, 08003 Barcelona, Spain; 
bPaleoanthropology Group, Department of Paleobiology, Museo Nacional de Ciencias Naturales, Consejo Superior de Investigaciones Cientificas, 28006 Madrid, Spain; 
cCentre for GeoGenetics, Natural History Museum of Denmark, University of Copenhagen, Øster Voldgade 5-7, 1350 Copenhagen, Denmark; Department of Statistics, Faculty of Biology, University of Barcelona, 08028 Barcelona, Spain; 
eInstitut Català de Paleoecologia Humana i Evolució Social, Unitat Asociada al Consejo Superior de Investigaciones Cientificas, Universitat Rovira i Virgili, 43002 Tarragona, Spain; and 
fÁrea de Prehistoria, Departamento de Historia, Universidad de Oviedo, 33011 Oviedo, Spain 

Edited by C. Owen Lovejoy, Kent State University, Kent, OH, and approved November 12, 2010 (received for review August 3, 2010) 

Abstract 

The remains of 12 Neandertal individuals have been found at the El Sidrón site (Asturias, Spain), consisting of six adults, three adolescents, two juveniles, and one infant. Archaeological, paleontological, and geological evidence indicates that these individuals represent all or part of a contemporaneous social group of Neandertals, who died at around the same time and later were buried together as a result of a collapse of an underground karst. We sequenced phylogenetically informative positions of mtDNA hypervariable regions 1 and 2 from each of the remains. Our results show that the 12 individuals stem from three different maternal lineages, accounting for seven, four, and one individual(s), respectively. Using a Y-chromosome assay to confirm the morphological determination of sex for each individual, we found that, although the three adult males carried the same mtDNA lineage, each of the three adult females carried different mtDNA lineages. These findings provide evidence to indicate that Neandertal groups not only were small and characterized by low genetic diversity but also were likely to have practiced patrilocal mating behavior. 

patrilocality, kinship, demography, human evolution 

Footnotes 

1To whom correspondence may be addressed. E-mail: carles.lalueza@upf.edu or arosas@mncn.csic.es. 

Author contributions: C.L.-F. and A.R. designed research; C.L.-F., A.R., A.E., E.G., P.F.C., A.G.-T., S.G.-V., F.S.-Q., O.R., M.B., R.H., D.S., and M.d.l.R. performed research; C.L.-F. and E.W. contributed new reagents/analytic tools; C.L.-F., A.R., O.R., and S.C. analyzed data; C.L.-F. and M.T.P.G. wrote the paper. A.R. coordinated paleontological analyses; D.S. excavated samples; and M.d.l.R. excavated remains and directed excavation. 

The authors declare no conflict of interest. 

This article is a PNAS Direct Submission. 

This article contains supporting information online at

Freely available online through the PNAS open access option.

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NOTA DESTE BLOGGER:


Após uma leitura en passant do artigo, eu fiquei cético das conclusões dos autores e, pasmem, um cientista evolucionista também. Leia o artigo Neandertal band of brothers, de John Hawks (em cujo blog me inspirei para não abrir comentários, pois a Galera dos meninos e meninas de Darwin é mal educada desde o berço, e não suporta ver seu ídolo/ícone sendo desconstruído sem dó nem piedade neste blog). Hawks, pasme, é cético que nem eu. 


Fui, nem sei por que, cantarolando, lá, lá, lá, lá, lá, lá, como é bom ser vindicado por um especialista de renome!!!


Chamam isso de ciência, eu chamo de telestesia (os meus amigos espíritas que me perdoem), ooops, menos Enézio, menos: radiestesia!!!