Sexual antagonism in sequential hermaphrodites.
Proc Biol Sci
; 290(2011): 20232222, 2023 Nov 29.
Article
em En
| MEDLINE
| ID: mdl-37989243
ABSTRACT
Females and males may have distinct phenotypic optima, but share essentially the same complement of genes, potentially leading to trade-offs between attaining high fitness through female versus male reproductive success. Such sexual antagonism may be particularly acute in hermaphrodites, where both reproductive strategies are housed within a single individual. While previous models have focused on simultaneous hermaphroditism, we lack theory for how sexual antagonism may play out under sequential hermaphroditism, which has the additional complexities of age-structure. Here, we develop a formal theory of sexual antagonism in sequential hermaphrodites. First, we construct a general theoretical overview of the problem, then consider different types of sexually antagonistic and life-history trade-offs, under different modes of genetic inheritance (autosomal or cytoplasmic), and different forms of sequential hermaphroditism (protogynous, protoandrous or bidirectional). Finally, we provide a concrete illustration of these general patterns by developing a two-stage two-sex model, which yields conditions for both invasion of sexually antagonistic alleles and maintenance of sexually antagonistic polymorphisms.
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Texto completo:
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Base de dados:
MEDLINE
Assunto principal:
Transtornos do Desenvolvimento Sexual
/
Evolução Biológica
Limite:
Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article