Results 11 to 20 of about 693,448 (302)

How did a duplicated gene copy evolve into a restorer-of-fertility gene in a plant? The case of Oma1 [PDF]

open access: yesRoyal Society Open Science, 2019
Restorer-of-fertility (Rf) is a suppressor of cytoplasmic male sterility (CMS), a mitochondrion-encoded trait that has been reported in many plant species.
Takumi Arakawa   +8 more
doaj   +1 more source

Self-Compatibility Not Associated with Morphological or Genetic Diversity Reduction in Oil-Rewarding Calceolaria Species

open access: yesPlants, 2020
One of the most common evolutionary transitions in angiosperms is the reproductive change from outcrossing to selfing, commonly associated with changes in floral biology and genetic diversity.
Maureen Murúa   +2 more
doaj   +1 more source

Pollination and Plant Reproductive Success of Two Ploidy Levels in Red Clover (Trifolium pratense L.)

open access: yesFrontiers in Plant Science, 2021
Plant reproduction in red clover requires cross-fertilization via insect pollination. However, the influences of visitation rate and timing on maximizing ovule utilization are yet to be determined.
Shuxuan Jing   +3 more
doaj   +1 more source

New insights on the expression patterns of specific Arabinogalactan proteins in reproductive tissues of Arabidopsis thaliana

open access: yesFrontiers in Plant Science, 2022
Arabinogalactan proteins (AGPs) are hydroxyproline-rich glycoproteins containing a high proportion of carbohydrates, widely distributed in the plant kingdom and ubiquitously present in land plants. AGPs have long been suggested to play important roles in
Diana Moreira   +17 more
doaj   +1 more source

Homologous recombination changes the context of Cytochrome b transcription in the mitochondrial genome of Silene vulgaris KRA

open access: yesBMC Genomics, 2018
Background Silene vulgaris (bladder campion) is a gynodioecious species existing as two genders – male-sterile females and hermaphrodites. Cytoplasmic male sterility (CMS) is generally encoded by mitochondrial genes, which interact with nuclear fertility
Helena Štorchová   +6 more
doaj   +1 more source

Pollination ecology and breeding system of two Calceolaria species in Chile [PDF]

open access: yes, 2014
Indexación: Web of Science; Scielo.Many angiosperms are exclusively dependent on pollinators for its reproduction (Matallana et al.2010; Arroyo et al. 2006).
Cisterna, Jannina   +2 more
core   +3 more sources

Possible molecular mechanisms of persistent pollen tube growth without de novo transcription

open access: yesFrontiers in Plant Science, 2022
The vegetative cell nucleus proceeds ahead of a pair of sperm cells located beneath the pollen tube tip during germination. The tip-localized vegetative nucleus had been considered to play a pivotal role in the control of directional pollen tube growth ...
Kazuki Motomura   +6 more
doaj   +1 more source

Evolution of plant reproduction: from fusion and dispersal to interaction and communication [PDF]

open access: yes, 2009
Based on the existing data concerning the evolution of the sexual reproduction, it is argued that the processes of sex differentiation and interactions play a key role in evolution. From the beginning environment and organism are unified.
Willemse, M.T.M.
core   +1 more source

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