Journal
NORDIC JOURNAL OF BOTANY
Volume 24, Issue 5, Pages 593-598Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1756-1051.2004.tb01644.x
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We compared the amount of variation in flower size between autogamous and insect-pollinated species to examine the hypothesis that pollinator-mediated selection stabilizes flower size in plant populations. One would expect the flower size variation to be larger in, selfing species that are less affected by pollinator-mediated stabilizing selection than in insect-pollinated species. The results of phylogenetic comparisons between autogamous and insect-pollinated flowers supported the pollinator-mediated stabilizing selection hypothesis, although the non-phylogenetic comparison did not. According to our results, we discuss the factors influencing the flower size variation.
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