Results 31 to 40 of about 1,516 (153)

Two Self-Incompatibility Sites Occur Simultaneously in the Same Acianthera Species (Orchidaceae, Pleurothallidinae)

open access: yesPlants, 2020
In most species of Pleurothallidinae, the self-incompatibility site occurs in the stylar canal inside the column, which is typical of gametophytic self-incompatibility (GSI).
Mariana Oliveira Duarte   +2 more
doaj   +1 more source

Review of the molecular background of self-incompatibility in rosaceous fruit trees

open access: yesInternational Journal of Horticultural Science, 2006
This review gives a presentation of the gametophytic self-incompatibility system in the roscaeous fruit trees. Studies to discover the pistil (S-ribonucleases) and pollen-part components (F-box molecules) are summarized and models for the self ...
J. Halász, A. Hegedűs, A. Pedryc
doaj   +1 more source

Breeding Diploid F1 Hybrid Potatoes for Propagation from Botanical Seed (TPS): Comparisons with Theory and Other Crops

open access: yesPlants, 2022
This paper reviews the progress and the way ahead in diploid F1 hybrid potato breeding by comparisons with expectations from the theory of inbreeding and crossbreeding, and experiences from other diploid outbreeding crops.
John E. Bradshaw
doaj   +1 more source

Gene and allelic genealogies at a gametophytic self-incompatibility locus. [PDF]

open access: yesGenetics, 1994
Abstract The properties of gene and allelic genealogies at a gametophytic self-incompatibility locus in plants have been investigated analytically and checked against extensive numerical simulations. It is found that, as with overdominant loci, there are two genealogical processes with markedly different time scales.
Vekemans, Xavier, Slatkin, Montgomery
openaire   +3 more sources

GENETIC ARCHITECTURE OF INBREEDING DEPRESSION AND THE MAINTENANCE OF GAMETOPHYTIC SELF‐INCOMPATIBILITY [PDF]

open access: yesEvolution, 2014
Gametophytic self-incompatibility (GSI) is a widespread genetic system, which enables hermaphroditic plants to avoid self-fertilization and mating with close relatives. Inbreeding depression is thought to be the major force maintaining SI; however, inbreeding depression is a dynamical variable that depends in particular on the mating system.
Gervais, Camille   +4 more
openaire   +4 more sources

When gametophytic self-incompatibility meets gynodioecy

open access: yesGenetics Research, 2008
SummaryThe occurrence of gynodioecy among angiosperms appears to be associated with self-compatibility. We use individual-based simulations to investigate the conditions for breakdown of a gametophytic self-incompatibility system in gynodioecious populations and make a comparison with hermaphroditic populations where the conditions are well known.
Ehlers, Bodil, Schierup, Mikkel H
openaire   +2 more sources

Recent findings of the tree fruit self-incompatibility studies

open access: yesInternational Journal of Horticultural Science, 2007
This review endeavours to collect all recent and substantial contributions to the quickly deepening fields of tree fruit self-incompatibility studies and hence updating previously published reviews.
A. Hegedűs, J. Halász
doaj   +1 more source

Detection of Self Incompatibility Genotypes in Prunus africana: Characterization, Evolution and Spatial Analysis. [PDF]

open access: yesPLoS ONE, 2016
In flowering plants, self-incompatibility is an effective genetic mechanism that prevents self-fertilization. Most Prunus tree species exhibit a homomorphic gametophytic self-incompatibility (GSI) system, in which the pollen phenotype is encoded by its ...
Judith Ssali Nantongo   +4 more
doaj   +1 more source

Molecular identification of S-alleles associated with self-incompatibility in apple (Malus spp.) genotypes

open access: yesThe Indian Journal of Agricultural Sciences, 2016
Gametophytic self-incompatibility, governed by the S-locus in apple (Malus spp.) plays a vital role for pollination and fruit set. The identification and cloning of RNases has enabled the use of molecular techniques to characterize Sgenotypes in apple ...
JI MIR   +6 more
doaj   +1 more source

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