Results 11 to 20 of about 516 (122)

Introgression despite minimal hybridization: mating system modulates phenotypic associations with introgression in Clarkia. [PDF]

open access: yesNew Phytol
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.
Sianta SA   +4 more
europepmc   +2 more sources

Mating system of Datura inoxia: association between selfing rates and herkogamy within populations [PDF]

open access: yesPeerJ, 2021
Plant mating system determines, to a great extent, the demographic and genetic properties of populations, hence their potential for adaptive evolution. Variation in plant mating system has been documented between phylogenetically related species as well ...
Vania Jiménez-Lobato   +1 more
doaj   +2 more sources

Effects of Floral Characters on the Pollination Biology and Breeding System of Iris setosa (Iridaceae): A Cold-Tolerant Ornamental Species from Jilin Province [PDF]

open access: yesBiology
Floral phenology and features are intricately linked to pollinator behavior and pollination systems. Iris setosa is one of the ornamental irises of the family Iridaceae with beautiful flowers and leaves, and little research has been reported on its ...
Xiyue Zhang   +6 more
doaj   +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]

open access: yesAm 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

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

open access: yesAm 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   +5 more
europepmc   +2 more sources

Domestication During Restoration: Unintentional Selection During Eight Generations of Wild Seed Propagation Reduces Herkogamy, Dichogamy and Heterozygosity in Clarkia pulchella. [PDF]

open access: yesMol Ecol
ABSTRACT Seed production on native seed farms has increased to meet the rising demand for plant material for restoration. Although these propagation efforts are necessary for restoration, cultivating wild populations may also result in unintentional selection and elicit evolutionary changes that mimic crop domestication, essentially turning these ...
Etterson JR   +3 more
europepmc   +2 more sources

Efficiency of Herkogamy in Narcissus bulbocodium (Amaryllidaceae)

open access: yesPlants, 2021
Within the theoretical framework of the correlation pleiades, floral phenotypic integration has been proposed as a consequence of selection mediated by pollinators acting on floral characters.
Luis Navarro   +2 more
doaj   +1 more source

Herkogamy and its effects on mating patterns in Arabidopsis thaliana. [PDF]

open access: yesPLoS ONE, 2013
The evolution of mating systems, which exhibit an extraordinary diversity in flowering plants, is of central interest in plant biology. Herkogamy, the spatial separation of sexual organs within flowers, is a widespread floral mechanism that is thought to
Yonghai Luo, Alex Widmer
doaj   +1 more source

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]

open access: yesPlant 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   +3 more
europepmc   +2 more sources

Evolution of distyly breakdown in Palicoureeae Robbr. & Manen and Psychotrieae Cham. & Schltdl. (Rubiaceae)

open access: yesActa Botânica Brasílica, 2022
Distyly is a floral polymorphism with reciprocal placement of male and female structures, heteromorphic self-incompatibility, and other ancillary traits. However, breeding system breakdowns and loss of polymorphism are common.
Ebenézer B. Rodrigues   +3 more
doaj   +1 more source

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