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  4. Assessing the spatial dependence of adaptive loci in 43 European and Western Asian goat breeds using AFLP markers
 
research article

Assessing the spatial dependence of adaptive loci in 43 European and Western Asian goat breeds using AFLP markers

Colli, Licia
•
Joost, Stéphane  
•
Negrini, Ricardo
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2014
Plos One

Background During the past decades, neutral DNA markers have been extensively employed to study demography, population genetics and structure in livestock, but less interest has been devoted to the evaluation of livestock adaptive potential through the identification of genomic regions likely to be under natural selection. Methodology/Principal findings Landscape genomics can greatly benefit the entire livestock system through the identification of genotypes better adapted to specific or extreme environmental conditions, therefore we analyzed 101 AFLP markers in 43 European and Western Asian goat breeds both with the software MATSAM, based on a correlative approach (SAM), and with MCHEZA and BAYESCAN, two FST based software able to detect markers carrying signatures of natural selection. MATSAM identified four loci possibly under natural selection - also confirmed by FSToutlier methods - and significantly associated with environmental variables such as diurnal temperature range, frequency of precipitation, relative humidity and solar radiation. Conclusions/Significance These results show that landscape genomics can provide useful information on the environmental factors affecting the adaptive potential of livestock living in specific climatic conditions. Besides adding conservation value to livestock genetic resources, this knowledge may lead to the development of novel molecular tools useful to preserve the adaptive potential of local breeds during genetic improvement programs, and to increase the adaptability of industrial breeds to changing environments.

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Type
research article
DOI
10.1371/journal.pone.0086668
Web of Science ID

WOS:000330617100024

Author(s)
Colli, Licia
Joost, Stéphane  
Negrini, Ricardo
Nicoloso, Letizia
Crepaldi, Paola
Ajmone-Marsan, Paolo
Corporate authors
ECONOGENE Consortium
Date Issued

2014

Publisher

Public Library of Science

Published in
Plos One
Volume

9

Issue

1

Article Number

e86668

Subjects

AFLP

•

GIS

•

Spatial statistics

•

Natural selection

•

Adaptation

•

Livestock

•

Landscape genomics

URL

URL

http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0086668
Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LASIG  
Available on Infoscience
December 12, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/97904
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