Inicio > Mis eListas > terraeantiqvae > Mensajes

 Índice de Mensajes 
 Mensajes 186 al 215 
AsuntoAutor
¿Cómo surgió la cr José Lui
RE: respuesta Ana Mari
Re: Amor a la guer Juan Bla
Anuncio de la tert Correo
Atenas pide los fr José Lui
RE: Amor a la guer David Sá
Re: Atenas_pide_lo Alberto
Bibliografia y "Am Santiago
Re: Atenas_pide_lo Antonio
Re: Amor a la guer Javler
RE: Amor a la guer Francisc
Re: Amor a la guer Alberto
Re:_Atenas_pide_lo Alberto
Re: ¿Cómo surgió l David Sa
Re: Amor a la guer Javler
Re: ¿Cómo surgió l Javler
Monográfico sobre Antonio
Re: Re:_Atenas_pid Antonio
Re:_Atenas_pide_lo javier n
Re:_¿Cómo_surgió_l Alberto
Re: Re:_¿Cómo_sur Paco
Re: Re:_Atenas_pid David Sa
Una exposición rei José Lui
Réplica de los rel José Lui
'Jesus' Artifact t José Lui
Arios (Alberto) Javler
Amor a la guerra David Sá
RE: Una exposición David Sá
Re:_Re:_Atenas_pid Alberto
el plomo de hispan David Sa
 << 30 ant. | 30 sig. >>
 
Terrae Antiqvae
Página principal    Mensajes | Enviar Mensaje | Ficheros | Datos | Encuestas | Eventos | Mis Preferencias

Mostrando mensaje 2100     < Anterior | Siguiente >
Responder a este mensaje
Asunto: Genetic Structure of a 2,500-Year-Old Human Population in China ...
Fecha:Domingo, 3 de Noviembre, 2002  22:20:37 (+0100)
Autor:David Sanchez <davius_sanctex @.....es>

Genetic Structure of a 2,500-Year-Old Human Population in China and its Spatiotemporal Changes

Abstract
To examine temporal changes in population genetic structure, we compared the mitochondrial DNA (mtDNA) sequences of three populations that lived in the same location, Linzi, China, in different periods: 2,500 years ago (the Spring–Autumn era), 2,000 years ago (the Han era), and the present day. Two indices were used to compare the genetic differences: the frequency distributions of the radiating haplotype groups and the genetic distances among the populations. The results indicate that the genetic backgrounds of the three populations are distinct from each other. Inconsistent with the geographical distribution, the 2,500-year-old Linzi population showed greater genetic similarity to present-day European populations than to present-day east Asian populations. The 2,000-year-old Linzi population had features that were intermediate between the present-day European/2,500-year-old Linzi populations and the present-day east Asian populations. These relationships suggest the occurrence of drastic spatiotemporal changes in the genetic structure of Chinese people during the past 2,500 years.