Results 271 to 280 of about 75,211 (301)
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Resource‐ and pollinator‐mediated selection on floral traits
Functional Ecology, 2016Summary Female reproductive success is predicted to be simultaneously limited by the availability of pollen and resources. Selection on floral traits results from both factors, but their relative importance and interaction is poorly understood.
Nina Sletvold, Matthew Tye, Jon Ågren
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Floral zygomorphy, the recurring evolution of a successful trait
BioEssays, 2004AbstractThe flowers of the primitive angiosperm plants were radially symmetrical (actinomorphic). Flowers with bilateral symmetry (zygomorphic) evolved in several clades independently as an adaptation to specialized methods of pollination and played an important role in the diversification of flowering plants.
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Genetic Variation in Floral Traits of Echium vulgare
Oikos, 1999We estimated the genetic basis for variation in floral traits and the phenotypic and genetic correlations between these traits using clonal propagation in Echium vulgare (Boraginaceae). For all floral traits measured (nectar volume, nectar sugar concentration, sugar production, corolla size, style length, stamen length) we found significant clonal ...
Peter G. L. Klinkhamer +1 more
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International Journal of Plant Sciences, 2013
Premise of research. Variation in flower color in the human-visible spectrum is well studied but less understood for ultraviolet (UV) floral traits despite their ubiquity and importance in mediating plant-insect interactions. Describing the extent of quantitative phenotypic variation and determining the heritability of UV pattern are crucial for ...
Matthew H. Koski, Tia-Lynn Ashman
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Premise of research. Variation in flower color in the human-visible spectrum is well studied but less understood for ultraviolet (UV) floral traits despite their ubiquity and importance in mediating plant-insect interactions. Describing the extent of quantitative phenotypic variation and determining the heritability of UV pattern are crucial for ...
Matthew H. Koski, Tia-Lynn Ashman
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Non-pollinator agents of selection on floral traits
2006Abstract Despite the dominating role of pollinators in floral evolution, mounting evidence reveals significant additional, often antagonistic, influences of abiotic and biotic non-pollinator agents. Even when pollinators and other agents impose selection on floral traits in the same direction, the role of other agents is frequently ...
Sharon Y Strauss, Justen B Whittall
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American Journal of Botany, 2013
• Premise of the study: Diversification of floral traits in angiosperms is often attributed to have been driven by adaptations to pollinators. Nevertheless, phylogenetic studies on the relationships among evolutionary changes in floral traits and pollination systems are still limited.
Shoko, Sakai +3 more
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• Premise of the study: Diversification of floral traits in angiosperms is often attributed to have been driven by adaptations to pollinators. Nevertheless, phylogenetic studies on the relationships among evolutionary changes in floral traits and pollination systems are still limited.
Shoko, Sakai +3 more
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Genetic mechanisms of floral trait correlations in a natural population
Nature, 2002Genetic correlations among traits are important in evolution, as they can constrain evolutionary change or reflect past selection for combinations of traits. Constraints and integration depend on whether the correlations are caused by pleiotropy or linkage disequilibrium, but these genetic mechanisms underlying correlations remain largely unknown in ...
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Dynamics of floral resources in farmland according to pollinator preferences and floral traits
Wild pollinators are still undergoing pressures putting at risk the pollination services they provide. In an intensive agricultural context where demand for productivity is still ever-increasing, pollinator population's decline is a fundamental issue. Along with pesticides, access to sufficient nectar and pollen resources throughout the year has been ...Langlois, Alban +3 more
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Unique and common traits in mycorrhizal symbioses
Nature Reviews Microbiology, 2020Andrea Genre +2 more
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