Maternal effect killing by a supergene controlling ant social organization.
Animals
Ants
/ genetics
Evolution, Molecular
Female
Gene Expression Regulation, Developmental
/ genetics
Genes, Insect
/ genetics
Haplotypes
/ genetics
Male
Maternal Inheritance
/ genetics
Meiosis
/ genetics
Regulatory Sequences, Nucleic Acid
/ genetics
Repetitive Sequences, Nucleic Acid
/ genetics
Social Behavior
maternal effect killer
queen number
selfish genetic elements
supergene
transmission ratio distortion
Journal
Proceedings of the National Academy of Sciences of the United States of America
ISSN: 1091-6490
Titre abrégé: Proc Natl Acad Sci U S A
Pays: United States
ID NLM: 7505876
Informations de publication
Date de publication:
21 07 2020
21 07 2020
Historique:
pubmed:
9
7
2020
medline:
18
9
2020
entrez:
9
7
2020
Statut:
ppublish
Résumé
Supergenes underlie striking polymorphisms in nature, yet the evolutionary mechanisms by which they arise and persist remain enigmatic. These clusters of linked loci can spread in populations because they captured coadapted alleles or by selfishly distorting the laws of Mendelian inheritance. Here, we show that the supergene haplotype associated with multiple-queen colonies in Alpine silver ants is a maternal effect killer. All eggs from heterozygous queens failed to hatch when they did not inherit this haplotype. Hence, the haplotype specific to multiple-queen colonies is a selfish genetic element that enhances its own transmission by causing developmental arrest of progeny that do not carry it. At the population level, such transmission ratio distortion favors the spread of multiple-queen colonies, to the detriment of the alternative haplotype associated with single-queen colonies. Hence, selfish gene drive by one haplotype will impact the evolutionary dynamics of alternative forms of colony social organization. This killer hidden in a social supergene shows that large nonrecombining genomic regions are prone to cause multifarious effects across levels of biological organization.
Identifiants
pubmed: 32636262
pii: 2003282117
doi: 10.1073/pnas.2003282117
pmc: PMC7382249
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
17130-17134Commentaires et corrections
Type : CommentIn
Déclaration de conflit d'intérêts
The authors declare no competing interest.
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