Variations in genome size between wild and domesticated lineages of fowls belonging to the Gallus gallus species.
C-value
CNV
Domestication
Repeats
Journal
Genomics
ISSN: 1089-8646
Titre abrégé: Genomics
Pays: United States
ID NLM: 8800135
Informations de publication
Date de publication:
03 2020
03 2020
Historique:
received:
11
02
2019
revised:
05
08
2019
accepted:
07
10
2019
pubmed:
2
11
2019
medline:
13
1
2021
entrez:
1
11
2019
Statut:
ppublish
Résumé
Efforts to elucidate the causes of biological differences between wild fowls and their domesticated relatives, the chicken, have to date mainly focused on the identification of single nucleotide mutations. Other types of genomic variations have however been demonstrated to be important in avian evolution and associated to variations in phenotype. They include several types of sequences duplicated in tandem that can vary in their repetition number. Here we report on genome size differences between the red jungle fowl and several domestic chicken breeds and selected lines. Sequences duplicated in tandem such as rDNA, telomere repeats, satellite DNA and segmental duplications were found to have been significantly re-shaped during domestication and subsequently by human-mediated selection. We discuss the extent to which changes in genome organization that occurred during domestication agree with the hypothesis that domesticated animal genomes have been shaped by evolutionary forces aiming to adapt them to anthropized environments.
Identifiants
pubmed: 31669705
pii: S0888-7543(19)30074-6
doi: 10.1016/j.ygeno.2019.10.004
pii:
doi:
Substances chimiques
RNA, Ribosomal
0
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
1660-1673Informations de copyright
Copyright © 2019 Elsevier Inc. All rights reserved.