Results 41 to 50 of about 1,510 (202)

The biology of heterostyly

open access: yesNew Zealand Journal of Botany, 1979
Abstract Heterostyly is a genetically controlled floral polymorphism that is known to occur in 24 families of flowering plants. The floral morphs differ reciprocally in stamen and style lengths. They often differ in pollen grain size and production, and may differ in pollen exine sculpturing, pollen colour ...
F. R. Ganders
semanticscholar   +2 more sources

Exploring Candidate Genes for the `S-locus': The Control of Heterostyly Across Wild and Cultivated Species in the Genus Linum [PDF]

open access: yes, 2018
Heterostyly in \textit{Linum }is characterised by the presence of two floral morphs with their male and female reproductive organs located at different heights.
Desmond, Eleanor Lauren
core   +6 more sources

Recombination suppression in plant adaptation and speciation. [PDF]

open access: yesNew Phytol
Summary Recombination suppression is increasingly recognized as an important facilitator of genomic divergence and speciation, especially under ongoing gene flow. In plants, however, the broader evolutionary consequences and the mechanisms by which recombination suppression arises and spreads are still incompletely understood, reflecting the inherent ...
Zhang X   +4 more
europepmc   +2 more sources

Heterostyly and pollinators in Plumbago auriculata (Plumbaginaceae) [PDF]

open access: yes, 2009
Plants with hermaphrodite flowers risk conflict between male and female sexual function due to close proximity of sexual organs. Heterostyly, a genetic floral polymorphism characterized mainly by reciprocal herkogamy, may reduce this sexual conflict by ...
de Vega, C.   +4 more
core   +1 more source

Is distyly in subtropical Psychotria brachyceras (Rubiaceae) similar to the general trends observed for the genus?

open access: yesActa Botânica Brasílica, 2022
Distyly is a floral polymorphism that promotes cross-pollination through precise pollination. Psychotria is a mostly tropical genus of distylous Rubiaceae.
Renata Trevizan   +4 more
doaj   +1 more source

The influence of heterostyly on the fructification of two Chaenomeles species

open access: yesActa Agrobotanica, 2013
The fructification of Chaenomeles japonica Lindl. and Ch. x superba grown in the Botanical Garden in Lublin was investigated in 1999 and 2002-2003. The influence of heterostyly on the degree of fruit setting and considerable morphological differences ...
Bożena Denisow
doaj   +1 more source

Evolution of Autonomous Selfing in Marginal Habitats: Spatiotemporal Variation in the Floral Traits of the Distylous Primula wannanensis

open access: yesFrontiers in Plant Science, 2021
Outcrossing plant species are more likely to exhibit autonomous selfing in marginal habitats to ensure reproduction under conditions of limited pollinator and/or mate availability.
Wei Zhang   +8 more
doaj   +1 more source

The Genomic Selfing Syndrome Accompanies the Evolutionary Breakdown of Heterostyly

open access: yesMolecular biology and evolution, 2020
The evolutionary transition from outcrossing to selfing can have important genomic consequences. Decreased effective population size and the reduced efficacy of selection are predicted to play an important role in the molecular evolution of the genomes ...
Xin‐Jia Wang   +6 more
semanticscholar   +1 more source

Reproductive studies in ipecac (Psychotria ipecacuanha (Brot.) stockes; Rubiaceae): pollen development and morphology

open access: yesBrazilian Archives of Biology and Technology, 2008
The aim of this work was to carry out the reproductive studies on Brazilian accessions of ipecac, Psychotria ipecacuanha. It presented heterostyly, with brevistylous and longistylous flowers.
Margarete Magalhães Souza   +3 more
doaj   +1 more source

The S-Gene YUC6 Pleiotropically Determines Male Mating Type and Pollen Size in Heterostylous Turnera (Passifloraceae): A Novel Neofunctionalization of the YUCCA Gene Family

open access: yesPlants, 2022
In heterostylous, self-incompatible Turnera species, a member of the YUCCA gene family, YUC6, resides at the S-locus and has been hypothesized to determine the male mating type.
Paige M. Henning   +2 more
doaj   +1 more source

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