2012
DOI: 10.1111/j.1420-9101.2012.02545.x
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Influence of number of pollinations and pollen load size on maternal fitness costs in Collinsia heterophylla: implications for existence of a sexual conflict over timing of stigma receptivity

Abstract: Costs related to pollen competition have rarely been considered, but are expected in the case of sexual conflict where male and female sexual functions have opposing evolutionary interests. In Collinsia heterophylla, delayed stigma receptivity is beneficial as it enhances pollen competition. A sexual conflict over timing of stigma receptivity has been proposed in this species as early pollination, following one-time pollinations, is advantageous to pollen donors at a cost of reduced maternal seed set (measured… Show more

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Cited by 16 publications
(41 citation statements)
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References 88 publications
(138 reference statements)
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“…when a pollination can lead to successful seed set (Lankinen and Kiboi 2007). Early fertilization leads to a female fitness cost in terms of reduced seed production and seed biomass (Madjidian et al 2012 b ), which is consistent with a sexual conflict over timing of floral receptivity (Parker 1979; Arnqvist and Rowe 2005). Thus, enhanced pollen competition involving sequential arrival of pollen from several donors appears to be negative for the female reproductive function.…”
Section: Sexual Selection and Sexual Conflict In Plantsmentioning
confidence: 54%
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“…when a pollination can lead to successful seed set (Lankinen and Kiboi 2007). Early fertilization leads to a female fitness cost in terms of reduced seed production and seed biomass (Madjidian et al 2012 b ), which is consistent with a sexual conflict over timing of floral receptivity (Parker 1979; Arnqvist and Rowe 2005). Thus, enhanced pollen competition involving sequential arrival of pollen from several donors appears to be negative for the female reproductive function.…”
Section: Sexual Selection and Sexual Conflict In Plantsmentioning
confidence: 54%
“…Thus, enhanced pollen competition involving sequential arrival of pollen from several donors appears to be negative for the female reproductive function. The reduction in seed biomass still remained when pollen was applied a second time at a later receptive stage (Madjidian et al 2012 b ). Also, using a small pollen load in the crosses at early stages, compared with a large pollen load, increased seed biomass rather than decreasing it, indicating that early pollinated flowers were not pollen limited.…”
Section: Sexual Selection and Sexual Conflict In Plantsmentioning
confidence: 99%
See 2 more Smart Citations
“…We then take stock of what we do know and do not know about sexual conflictfirst in sequential hermaphrodites, and then in simultaneous hermaphrodites-with the aim of illuminating general principles and attempting to understand what is similar and what is different about sexual conflict when it occurs in different sexual systems. Given limitations on space and our own expertise, we confine our discussion to hermaphroditic animals, but emphasize here that plants undoubtedly also offer tremendous promise to expand our understanding of sexual conflict (e.g., Charnov 1979;Bernasconi et al 2004;Arnqvist and Rowe 2005;Lankinen and Larsson 2009;Madjidian et al 2012).…”
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confidence: 99%