HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Submit a response Alert me when this article is cited Alert me when eLetters are posted Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (14) Citing Articles via Google Scholar Google Scholar Articles by Elle, Search for Related Content PubMed Articles by Elle, Agricola Articles by Elle,

Sex allocation and reproductive success in the andromonoecious perennial Solanum carolinense (Solanaceae). I. Female success¹

Department of Ecology, Evolution, and Natural Resources, Rutgers University, New Brunswick, New Jersey 08903-0231

Relative allocation of resources to growth vs. reproduction has long been known to be an important determinant of reproductive success. The importance of variation in allocation to different structures within reproductive allocation is somewhat less clear. This study was designed to elucidate the importance of allocation to vegetative vs. reproductive functions, and allocation within reproductive functions (sex allocation), to realized female success in an andromonoecious plant, Solanum carolinense. Allocation measurements were taken on plants in experimental arrays exposed to natural pollination conditions. These measurements included total flower number, the proportion of flowers that were male, flower size, and vegetative size. Flower number explained the majority of the variation among individuals in their success—that is, there was strong selection for increased flower production. There was also selection to decrease the proportion of flowers that were male, but neither flower size nor vegetative size (a measure of overall resource availability) were direct determinants of female success. After Bonferroni corrections for multiple comparisons, most phenotypic correlations among the traits measured were nonsignificant. Thus, in this andromonoecious species there is not a strong relationship between resource availability (vegetative size) and female success, and female success is instead determined by the relative production of the two different flower types.

Key Words: Bateman's principle • reproductive success • resource allocation • sex allocation • Solanaceae • Solanum carolinense

This article has been cited by other articles:

				A. Quesada-Aguilar, S. Kalisz, and T.-L. Ashman Flower morphology and pollinator dynamics in Solanum carolinense (Solanaceae): implications for the evolution of andromonoecy Am. J. Botany, August 1, 2008; 95(8): 974 - 984. [Abstract] [Full Text] [PDF]

				J. S. Miller and P. K. Diggle Correlated evolution of fruit size and sexual expression in andromonoecious Solanum sections Acanthophora and Lasiocarpa (Solanaceae) Am. J. Botany, October 1, 2007; 94(10): 1706 - 1715. [Abstract] [Full Text] [PDF]

				J. M. Snyder and J. H. Richards Floral phenology and compatibility of sawgrass, Cladium jamaicense (Cyperaceae) Am. J. Botany, April 1, 2005; 92(4): 736 - 743. [Abstract] [Full Text] [PDF]

				A. L. Parachnowitsch and E. Elle Variation in sex allocation and male-female trade-offs in six populations of Collinsia parviflora (Scrophulariaceae s.l.) Am. J. Botany, August 1, 2004; 91(8): 1200 - 1207. [Abstract] [Full Text] [PDF]

				C. M. Caruso, S. B. Peterson, and C. E. Ridley Natural selection on floral traits of Lobelia (Lobeliaceae): spatial and temporal variation Am. J. Botany, September 1, 2003; 90(9): 1333 - 1340. [Abstract] [Full Text] [PDF]