Titre
Invasion and fixation of sex-reversal genes.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Vuilleumier, S.
Auteure/Auteur
Lande, R.
Auteure/Auteur
Van Alphen, J.J.
Auteure/Auteur
Seehausen, O.
Auteure/Auteur
Liens vers les personnes
Liens vers les unités
ISSN
1010-061X
Statut éditorial
Publié
Date de publication
2007
Volume
20
Numéro
3
Première page
913
Dernière page/numéro d’article
920
Peer-reviewed
Oui
Langue
anglais
Résumé
We simulated a meta-population with random dispersal among demes but local mating within demes to investigate conditions under which a dominant female-determining gene W, with no individual selection advantage, can invade and become fixed in females, changing the population from male to female heterogamety. Starting with one mutant W in a single deme, the interaction of sex ratio selection and random genetic drift causes W to be fixed among females more often than a comparable neutral mutation with no influence on sex determination, even when YY males have slightly reduced viability. Meta-population structure and interdeme selection can also favour the fixation of W. The reverse transition from female to male heterogamety can also occur with higher probability than for a comparable neutral mutation. These results help to explain the involvement of sex-determining genes in the evolution of sex chromosomes and in sexual selection and speciation.
PID Serval
serval:BIB_26F923B014E8
PMID
Open Access
Oui
Date de création
2008-07-15T12:09:15.101Z
Date de création dans IRIS
2025-05-20T14:24:35Z
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Nom
BIB_26F923B014E8.P001.pdf
Version du manuscrit
preprint
Taille
2.56 MB
Format
Adobe PDF
PID Serval
serval:BIB_26F923B014E8.P001
URN
urn:nbn:ch:serval-BIB_26F923B014E81
Somme de contrôle
(MD5):e871e6d6b0ce6aa3f6d1ad88b1d9e062