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dc.contributor.authorElle, E
dc.contributor.authorMeagher, Thomas Robert
dc.identifier.citationElle , E & Meagher , T R 2000 , ' Sex allocation and reproductive success in the andromonoecious perennial, Solanum carolinense (Solanaceae). II. paternity and functional gender ' , American Naturalist , vol. 156 , no. 6 , pp. 622-636 .
dc.identifier.otherPURE: 94570
dc.identifier.otherPURE UUID: 13a5bfc2-d2b2-473e-8714-8aff77e0128a
dc.identifier.otherWOS: 000165870000005
dc.identifier.otherScopus: 0034537848
dc.descriptionThe work was supported by a National Science Foundation Doctoral Dissertation Improvement grant (DEB‐9411513), by the Society for Sigma Xi, and by a Hutcheson Memorial Forest grant.en
dc.description.abstractAccording to Bateman's principle, male fitness in entomophilous plant species should be limited by mating opportunity, which is influenced by the size or number of flowers. We determined male-specific fitness consequences of floral phenotype in andromonoecious Solanum carolinense, examined the relationship between male and female reproductive success within plants, and evaluated the distribution of functional gender among plants. A maximum likelihood-based paternity analysis, based on multilocus allozyme phenotypes of parents and offspring from four experimental plots, was used to determine male reproductive success and its relationship to floral phenotype. Male success was enhanced by an increase in the proportion of male flowers produced but not by an increase in total flower number, even though all flowers contain male parts. Larger flower size increased male success in only one plot. Male and female reproductive success were negatively correlated, and plants varied in functional gender from completely female to completely male. This gender specialization may occur because hermaphroditic and male flowers differ in their ability to contribute to male and female success. Although sex allocation theory predicts a positive relationship between the size or number of plant parts and reproductive success, this study indicates that aspects of floral morphology that affect gender specialization should also be considered.
dc.relation.ispartofAmerican Naturalisten
dc.rightsCopyright, 2000, The University of Chicago.en
dc.subjectBateman's principleen
dc.subjectFunctional genderen
dc.subjectPaternity analysisen
dc.subjectSex allocationen
dc.subjectSolanum carolinenseen
dc.subjectMediated gene flowen
dc.subjectRadish raphanus-raphanistrumen
dc.subjectPollen-donation hypothesisen
dc.subjectWild radishen
dc.subjectFloral traitsen
dc.subjectDispersal patternsen
dc.subjectParentage analysisen
dc.subjectQH301 Biologyen
dc.titleSex allocation and reproductive success in the andromonoecious perennial, Solanum carolinense (Solanaceae). II. paternity and functional genderen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews.School of Biologyen
dc.contributor.institutionUniversity of St Andrews.Scottish Oceans Instituteen
dc.description.statusPeer revieweden

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