Evolutionary origins and impacts of genome architecture in ciliates.
ciliates
evolution
genome architecture
genome evolution
transposable elements
Journal
Annals of the New York Academy of Sciences
ISSN: 1749-6632
Titre abrégé: Ann N Y Acad Sci
Pays: United States
ID NLM: 7506858
Informations de publication
Date de publication:
07 2019
07 2019
Historique:
received:
15
12
2018
revised:
18
03
2019
accepted:
03
04
2019
pubmed:
11
5
2019
medline:
2
4
2020
entrez:
11
5
2019
Statut:
ppublish
Résumé
Genome architecture is well diversified among eukaryotes in terms of size and content, with many being radically shaped by ancient and ongoing genome conflicts with transposable elements (e.g., the large transposon-rich genomes common among plants). In ciliates, a group of microbial eukaryotes with distinct somatic and germ-line genomes present in a single cell, the consequences of these genome conflicts are most apparent in their developmentally programmed genome rearrangements. This complicated developmental phenomenon has largely overshadowed and outpaced our understanding of how germ-line and somatic genome architectures have influenced the evolutionary dynamism and potential in these taxa. In our review, we highlight three central concepts: how the evolution of atypical ciliate germ-line genome architectures is linked to ancient genome conflicts; how the complex, epigenetically guided transformation of germline to soma during development can generate widespread genetic variation; and how these features, coupled with their unusual life cycle, have increased the rate of molecular evolution linked to genome architecture in these taxa.
Identifiants
pubmed: 31074010
doi: 10.1111/nyas.14108
pmc: PMC6767857
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
110-118Subventions
Organisme : NCCR RNA & Disease
Pays : International
Organisme : H2020 European Research Council
ID : G-EDIT
Pays : International
Informations de copyright
© 2019 The Authors.Annals of the New York Academy of Sciences published by Wiley Periodicals, Inc. on behalf of New York Academy of Sciences.
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