Sexual antagonism in sequential hermaphrodites
MetadataShow full item record
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.
Hitchcock , T J & Gardner , A 2023 , ' Sexual antagonism in sequential hermaphrodites ' , Proceedings of the Royal Society of London Series B: Biological Sciences , vol. 290 , no. 2011 , 20232222 . https://doi.org/10.1098/rspb.2023.2222
Proceedings of the Royal Society of London Series B: Biological Sciences
DescriptionFunding: H2020 European Research Council - European Research Council Consolidator Grant (771387; Natural Environment Research Council - Independent Research Fellowship (NE/K009524/1); RIKEN - Special Postdoctoral Researchers Program; University of St Andrews - School of Biology PhD Scholarship
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.