Please use this identifier to cite or link to this item:
Author(s): Pereira, F
Davis, SJ
Pereira, L
McEvoy, B
Bradley, DG
Amorim, A
Title: Genetic Signatures of a Mediterranean Influence in Iberian Peninsula Sheep Husbandry
Publisher: Oxford University Press
Issue Date: 2006
Abstract: Highly adaptable and versatile populations of domestic sheep, the result of millennia of intense husbandry, are found in almost every corner of the world. Here we describe a genetic survey of sheep from the western fringe of its European distribution. We studied the mitochondrial DNA control region sequences from 161 individuals belonging to 7 Portuguese sheep breeds. Our study revealed a high level of genetic diversity, with an average breed haplotype diversity of 0.983, substantially above that observed in central European breeds, as well as the presence of maternal lineages until now only found in the Middle East and Asia. A broad north-south pattern describes the most important trend in the Portuguese sheep population with a southern population clearly distinct from most other breeds. A recurrent influx of new genetic diversity, probably via the Mediterranean Sea, may explain these patterns and appears to corroborate the importance of this maritime route in the history of both mankind and livestock. Zooarchaeological studies of sheep bones from southern Portugal indicate a marked size increase during the Moslem period that may reflect an improvement of this animal--perhaps part of the well known "Arab agricultural revolution" in Andalusia. This could have been a time when the gene pool of Iberian sheep was substantially enriched and may help to explain the history of modern sheep breeds in this peninsula.
Subject: Ovis aries
mtDNA Lineages
Iberian Peninsula
Sheep husbandry
Source: Molecular Biology and Evolution, vol. 23(7), p. 1420-6
Related Information: info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F19585%2F2004/PT
Document Type: Artigo em Revista Científica Internacional
Rights: restrictedAccess
Appears in Collections:I3S - Artigo em Revista Científica Internacional

Files in This Item:
File Description SizeFormat 
  Restricted Access
188.23 kBAdobe PDF    Request a copy
  Restricted Access
195.5 kBMicrosoft Word    Request a copy
  Restricted Access
27.83 kBMicrosoft Word    Request a copy
  Restricted Access
48.06 kBMicrosoft Word    Request a copy
  Restricted Access
30.89 kBMicrosoft Word    Request a copy

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.