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Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History

Knowledge on genetic diversity and structure of camel populations is fundamental for sustainable herd management and breeding program implementation in this species. Here we characterized a total of 331 camels from Northern Africa, representative of six populations and thirteen Algerian and Egyptian...

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Autores principales: Cherifi, Youcef Amine, Gaouar, Suheil Bechir Semir, Guastamacchia, Rosangela, El-Bahrawy, Khalid Ahmed, Abushady, Asmaa Mohammed Aly, Sharaf, Abdoallah Aboelnasr, Harek, Derradji, Lacalandra, Giovanni Michele, Saïdi-Mehtar, Nadhira, Ciani, Elena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5245891/
https://www.ncbi.nlm.nih.gov/pubmed/28103238
http://dx.doi.org/10.1371/journal.pone.0168672
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author Cherifi, Youcef Amine
Gaouar, Suheil Bechir Semir
Guastamacchia, Rosangela
El-Bahrawy, Khalid Ahmed
Abushady, Asmaa Mohammed Aly
Sharaf, Abdoallah Aboelnasr
Harek, Derradji
Lacalandra, Giovanni Michele
Saïdi-Mehtar, Nadhira
Ciani, Elena
author_facet Cherifi, Youcef Amine
Gaouar, Suheil Bechir Semir
Guastamacchia, Rosangela
El-Bahrawy, Khalid Ahmed
Abushady, Asmaa Mohammed Aly
Sharaf, Abdoallah Aboelnasr
Harek, Derradji
Lacalandra, Giovanni Michele
Saïdi-Mehtar, Nadhira
Ciani, Elena
author_sort Cherifi, Youcef Amine
collection PubMed
description Knowledge on genetic diversity and structure of camel populations is fundamental for sustainable herd management and breeding program implementation in this species. Here we characterized a total of 331 camels from Northern Africa, representative of six populations and thirteen Algerian and Egyptian geographic regions, using 20 STR markers. The nineteen polymorphic loci displayed an average of 9.79 ± 5.31 alleles, ranging from 2 (CVRL8) to 24 (CVRL1D). Average H(e) was 0.647 ± 0.173. Eleven loci deviated significantly from Hardy-Weinberg proportions (P<0.05), due to excess of homozygous genotypes in all cases except one (CMS18). Distribution of genetic diversity along a weak geographic gradient as suggested by network analysis was not supported by either unsupervised and supervised Bayesian clustering. Traditional extensive/nomadic herding practices, together with the historical use as a long-range beast of burden and its peculiar evolutionary history, with domestication likely occurring from a bottlenecked and geographically confined wild progenitor, may explain the observed genetic patterns.
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spelling pubmed-52458912017-02-06 Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History Cherifi, Youcef Amine Gaouar, Suheil Bechir Semir Guastamacchia, Rosangela El-Bahrawy, Khalid Ahmed Abushady, Asmaa Mohammed Aly Sharaf, Abdoallah Aboelnasr Harek, Derradji Lacalandra, Giovanni Michele Saïdi-Mehtar, Nadhira Ciani, Elena PLoS One Research Article Knowledge on genetic diversity and structure of camel populations is fundamental for sustainable herd management and breeding program implementation in this species. Here we characterized a total of 331 camels from Northern Africa, representative of six populations and thirteen Algerian and Egyptian geographic regions, using 20 STR markers. The nineteen polymorphic loci displayed an average of 9.79 ± 5.31 alleles, ranging from 2 (CVRL8) to 24 (CVRL1D). Average H(e) was 0.647 ± 0.173. Eleven loci deviated significantly from Hardy-Weinberg proportions (P<0.05), due to excess of homozygous genotypes in all cases except one (CMS18). Distribution of genetic diversity along a weak geographic gradient as suggested by network analysis was not supported by either unsupervised and supervised Bayesian clustering. Traditional extensive/nomadic herding practices, together with the historical use as a long-range beast of burden and its peculiar evolutionary history, with domestication likely occurring from a bottlenecked and geographically confined wild progenitor, may explain the observed genetic patterns. Public Library of Science 2017-01-19 /pmc/articles/PMC5245891/ /pubmed/28103238 http://dx.doi.org/10.1371/journal.pone.0168672 Text en © 2017 Cherifi et al http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
spellingShingle Research Article
Cherifi, Youcef Amine
Gaouar, Suheil Bechir Semir
Guastamacchia, Rosangela
El-Bahrawy, Khalid Ahmed
Abushady, Asmaa Mohammed Aly
Sharaf, Abdoallah Aboelnasr
Harek, Derradji
Lacalandra, Giovanni Michele
Saïdi-Mehtar, Nadhira
Ciani, Elena
Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History
title Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History
title_full Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History
title_fullStr Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History
title_full_unstemmed Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History
title_short Weak Genetic Structure in Northern African Dromedary Camels Reflects Their Unique Evolutionary History
title_sort weak genetic structure in northern african dromedary camels reflects their unique evolutionary history
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5245891/
https://www.ncbi.nlm.nih.gov/pubmed/28103238
http://dx.doi.org/10.1371/journal.pone.0168672
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