Results 51 to 60 of about 491 (160)
Fecundity Effects of Dichogamy in an Asynchronically Flowering Population: a Genetic Model [PDF]
Abstract Timing of pollen presentation and ovule maturation at the level of the flower, individual and population may exert a profound influence on individual fitness and population structure. We explored the evolutionary consequences of asynchrony in flowering in a population of dichogamous plants, making use of a genetic model to represent pollen ...
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Summary Secondary contact between incipient species provides the opportunity to understand how trait divergence restricts gene flow. While mating system transitions are particularly common and involve a suite of phenotypic changes, the extent to which these changes influence gene flow during speciation is poorly understood.
Shelley A. Sianta +4 more
wiley +1 more source
Does size matter? Pollination biology of Aristolochia sessilifolia (Aristolochiaceae) [PDF]
Background and aims – The morphology of flowers with specialized pollination acts as a pollinator filter, resulting in compatibility between the flower and its visitors. These characteristics can influence plant diversity, and studying these interactions
Júlia de Moraes Brandalise +2 more
doaj +3 more sources
Dimorpho-Dichogamy in Juglans and Carya
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
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Transcriptome Analysis Identified Dichogamy Regulation Networks in Alpinia mutica
Abstract In the sexual reproduction of flowering plants, outcrossing has natural advantages in heredity, and is the reproduction method used by most flowering plants. Dichogamy, accompanied by flower sex transition or differential maturation, promotes outcrossing and reduces selfing and interference with male and female functions, impacting the
Ao-Dan Huang +8 more
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Do dichogamy and herkogamy reduce sexual interference in a self‐incompatible species? [PDF]
Summary 1. Dichogamy and herkogamy respectively represent the temporal and spatial separation of male and female reproductive functions. They are regarded as mechanisms to avoid selfing, to promote outcrossing and, particularly in self‐incompatible plants, to reduce sexual interference.
Can Dai, Laura F. Galloway
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Rātā Moehau (Metrosideros bartlettii), a critically endangered tree endemic to Aotearoa New Zealand, is represented by only 14 wild individuals. We assembled its first genome, analysed genetic diversity in wild and cultivated individuals and found long‐term population decline and reduced diversity in cultivated plants—providing key insights to support ...
Jessie M. Prebble +5 more
wiley +1 more source
Reproductive biology and pollination of Cabomba aquatica (Cabombaceae)
Reproductive biology and pollination of the fanwort, Cabomba aquatica Aubl., were studied in populations from dams located in Dois Irmãos State Park, Recife, Pernambuco state, northeastern Brazil.
Jacilene Bezerra da Silva +1 more
doaj +1 more source
Timing is everything: Dichogamy and pollen germinability underlie variation in autonomous selfing among populations [PDF]
Premise of the StudyThe evolution of multiple floral traits often underlies the transition from outcrossing to selfing. Such traits can influence the ability to self, and the timing at which selfing occurs, which in turn affects the costs of selfing. Species that display variation in autonomous selfing provide an opportunity to dissect the phenotypic ...
Matthew H, Koski +3 more
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Dichogamy correlates with outcrossing rate and defines the selfing syndrome in the mixed-mating genus Collinsia [PDF]
How and why plants evolve to become selfing is a long-standing evolutionary puzzle. The transition from outcrossing to highly selfing is less well understood in self-compatible (SC) mixed-mating (MM) species where potentially subtle interactions between floral phenotypes and the environment are at play.
Susan, Kalisz +5 more
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