Results 11 to 20 of about 195 (99)

Dimorphic enantiostyly and its function for pollination by carpenter bees in a pollen-rewarding Caribbean bloodwort. [PDF]

Am J Bot
Abstract Premise Flowers that present their anthers and stigma in close proximity can achieve precise animal‐mediated pollen transfer, but risk self‐pollination. One evolutionary solution is reciprocal herkogamy. Reciprocity of anther and style positions among different plants (i.e., a genetic dimorphism) is common in distylous plants, but very rare in
Johnson SD, Midgley JJ, Bocourt-Hernandez LG, Loiret FG, Ortega-Rodés P, Illing N.   +5 more
europepmc   +2 more sources

Variation in tolerance to heterospecific pollen from a non-native congener depends on co-existence history of maternal and paternal source populations. [PDF]

Am J Bot
Abstract Premise Plants in sympatric populations with congeners may have evolved tolerance to the negative effects of heterospecific pollen (HP) through selection on female or male reproductive traits. If so, then the degree of HP tolerance may vary depending on the co‐existence history of the maternal and paternal plant source populations.
Hoshino Y, Horie S, Maki M, Dohzono I.
europepmc   +2 more sources

Investigating the effects of fire on pollinator-dependent distyly polymorphism. [PDF]

Plant Biol (Stuttg)
While fire causes some morphological changes in pollinator‐dependent distylous flowers, most traits related to attraction, reward, and stigma‐anther reciprocity remain unaffected, ensuring intermorph pollen transfer and maintaining the floral polymorphism.
Trevizan R, Mendes-Rodrigues C, Oliveira PE, Maruyama PK, Amorim FW, Cardoso JCF.   +5 more
europepmc   +2 more sources

Floral Color Change Mediated by Pollen Input-Output and Its Manipulation of Pollinator Foraging Behavior in Heterostylous Plant <i>Arnebia guttata</i> (Boraginaceae). [PDF]

Ecol Evol
The inducement, functions of flower color change (FCC) and its ecological effects have been studied by controlling pollination, accurate statistics of pollen transfer and visiting behavior in a typical distylous species. The results showed that limiting pollen input–output can delay fading time of spots, adding fake spots to old flowers can improve ...
Ren D, Zheng R, Zhai Y, Zhang A.
europepmc   +2 more sources

Comparative Proteomic Analysis of Self-Compatible <i>Turnera</i> Mutants Suggests <i>Glutathione S-Transferase 8</i> Is Involved in Overcoming S-Morph Female Self-Incompatibility Response. [PDF]

Plant Direct
ABSTRACT Distyly is a reproductive system, characterized by the presence of two floral morphs, which promotes outcrossing via physical and biochemical means. In distylous Turnera, the mating type of the S‐morph is determined by two genes: YUC6 (male) and BAHD (female).
Henning PM, Chafe PDJ, Hamam HJ, Shore JS.   +3 more
europepmc   +2 more sources

Floral biology, reciprocal herkogamy and breeding system in fourPsychotriaspecies (Rubiaceae) in Brazil [PDF]

Botanical Journal of the Linnean Society, 2016
Distylous species have two floral morphs with reciprocal positions of sexual whorls, functioning to promote cross-pollination. Additionally, most distylous species have an incompatibility system linked to the discrete variation of anthers and stigmas. Here we provide new data on heterostyly, reproductive biology and pollination in four Psychotria spp ...
Sá, Túlio, Furtado, Marco T., Ferrero, Victoria, Pérez-barrales, Rocio, Rodrigues, Ebenézer B., Dos Santos, Isabela G., Consolaro, Hélder   +6 more
openaire   +3 more sources

Changes in reciprocal herkogamy during the tristyly–distyly transition inOxalis alpinaincrease efficiency in pollen transfer [PDF]

Journal of Evolutionary Biology, 2012
AbstractAlthough the spatial separation of sexual organs within a flower (herkogamy) has been interpreted as a mechanism that promotes efficient pollen transfer, there have been few attempts to relate variation in herkogamy to probabilities of pollen flow.
F, Baena-Díaz, J, Fornoni, P, Sosenski, F E, Molina-Freaner, S G, Weller, R, Pérez-Ishiwara, C A, Domínguez   +6 more
openaire   +2 more sources

Pollination and plant reproduction in the Cerrado, the world's most biodiverse savanna. [PDF]

Biol Rev Camb Philos Soc
ABSTRACT The Brazilian Cerrado is a continental‐wide biodiversity hotspot and the most species‐rich savanna ecosystem in the world. The main aspect characterising this biodiversity is that the landscape is arranged as an intricate mosaic of different plant formations, including grasslands, savannas, and forests, each harbouring distinct but ...
Cardoso JCF, Trevizan R, Maruyama PK, Caetano APS, Gonçalves RV, Antonini Y, Oliveira PE.   +6 more
europepmc   +2 more sources

The impact of individual inaccuracy of reciprocal herkogamy on legitimate pollen deposition and seed set in a distylous self‐incompatible herb [PDF]

Journal of Ecology, 2019
Abstract Heterostyly is a floral polymorphism that has been observed in at least 28 different plant families across the globe. Heterostyly is characterized by reciprocal arrangement of the anthers and stigmas and the presence of a heteromorphic self‐incompatibility system, which together have been hypothesized to promote cross pollination and to ...
Brys, Rein, Jacquemyn, Hans
openaire   +1 more source

FlowerMate: Multidimensional reciprocity and inaccuracy indices for style-polymorphic plant populations. [PDF]

Appl Plant Sci
Abstract Premise Heterostyly in plants promotes pollen transfer between floral morphs, because female and male sex organs are located at roughly reciprocal heights within the flowers of each morph. Reciprocity indices, which assess the one‐dimensional variation in the height of sex organs, are used to define the phenotypic structure of heterostyly in ...
Simón-Porcar V, Muñoz-Pajares AJ, Arroyo J, Johnson SD.   +3 more
europepmc   +2 more sources