Does the trade-off between growth and reproduction select for female-biased sexual allocation in cosexual plants?

Satoki Sakai, Yasushi Harada

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

We analyzed sexual allocation in cosexual plants while taking the trade-off between growth and reproduction into consideration and showed that this trade-off does not select for female-biased sexual allocation. There are two problems in sexual allocation: optimizing the amount of resources allocated to reproduction in a growing season and equalizing the resources allocated to the male and the female functions. If these two are possible at the same time, equal resource allocation to the male and the female functions is the evolutionarily stable strategy (ESS; given that the fitness gains through the male and the female functions are proportional to the amount of the resources allocated to these functions). Biased sexual allocation only occurs when constraints make it impossible to simultaneously optimize allocation to reproduction and allocation to male and female functions. However, even if female-biased sexual allocation occurs due to the addition of other constraints, the trade-off between growth and reproduction itself is not an important factor that selects for female-biased sexual allocation.

Original languageEnglish
Pages (from-to)1204-1207
Number of pages4
JournalEvolution
Volume52
Issue number4
DOIs
Publication statusPublished - 1998

Keywords

  • Evolutionarily stable strategy
  • Female-biased sexual allocation
  • Hermaphroditic plants
  • Reproductive phenology

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Genetics
  • Agricultural and Biological Sciences(all)

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