scholarly journals When the genetic architecture matters: evolutionary and ecological implications of self versus nonself recognition in plant self‐incompatibility

2021 ◽  
Author(s):  
Xavier Vekemans ◽  
Vincent Castric
Keyword(s):  
Genetic Architecture ◽  
Self Incompatibility ◽  
Ecological Implications ◽  
Nonself Recognition

scholarly journals GENETIC ARCHITECTURE OF INBREEDING DEPRESSION AND THE MAINTENANCE OF GAMETOPHYTIC SELF-INCOMPATIBILITY

Evolution ◽  
2014 ◽  
Vol 68 (11) ◽  
pp. 3317-3324 ◽  
Author(s):  
Camille Gervais ◽  
Diala Abu Awad ◽  
Denis Roze ◽  
Vincent Castric ◽  
Sylvain Billiard
Keyword(s):  
Inbreeding Depression ◽  
Genetic Architecture ◽  
Self Incompatibility

scholarly journals Nonself-recognition-based self-incompatibility can alternatively promote or prevent introgression

2020 ◽  
Author(s):  
Alexander Harkness ◽  
Yaniv Brandvain
Keyword(s):  
Pollen Limitation ◽  
List Type ◽  
Self Incompatibility ◽  
Core Eudicots ◽  
S Alleles ◽  
Self Fertilization ◽  
Nonself Recognition ◽  
Negative Frequency Dependent Selection ◽  
Incompatibility Alleles ◽  
S Allele

1SummaryTraditionally, we expect that self-incompatibility alleles (S-alleles), which prevent self-fertilization, should benefit from negative-frequency dependent selection and rise to high frequency when introduced to a new population through gene flow. However, the most taxonomically widespread form of self-incompatibility, the ribonuclease-based system ancestral to the core eudicots, functions through nonself-recognition, which drastically alters the process of S-allele diversification.We analyze a model of S-allele evolution in two populations connected by migration, focusing on comparisons among the fates of S-alleles originally unique to each population and those shared among populations.We find that both shared and unique S-alleles originating from the population with more unique S-alleles were usually fitter than S-alleles from the population with fewer. Resident S-alleles were often driven extinct and replaced by migrant S-alleles, though this outcome could be averted by pollen limitation or biased migration.Nonself-recognition-based self-incompatibility will usually either disfavor introgression of S-alleles or result in the whole-sale replacement of S-alleles from one population with those from another.

scholarly journals Evolutionary aspects of the S-related genes of the Brassica self-incompatibility system: synonymous and nonsynonymous base substitutions.

Genetics ◽  
1995 ◽  
Vol 140 (3) ◽  
pp. 1099-1104 ◽  
Author(s):  
K Hinata ◽  
M Watanabe ◽  
S Yamakawa ◽  
Y Satta ◽  
A Isogai
Keyword(s):  
Self Incompatibility ◽  
Receptor Kinase ◽  
Operational Taxonomic Units ◽  
Incompatibility System ◽  
S Alleles ◽  
Nonself Recognition ◽  
Evolutionary Aspects ◽  
S Locus Glycoprotein ◽  
Receptor Domain ◽  
Allelic Differentiation

Abstract In the Brassicaceae, self-vs. nonself-recognition in self-incompatibility is controlled by sporophytic S-alleles. Haplotypes specifying both SRK (S-receptor kinase) and SLG (S-locus glycoprotein) are considered to play an important role in the recognition reactions. We compared the nucleotide sequences of SRK9(Bc) and SRK6(Bo). The number of nonsynonymous substitutions per site (Pn) was lower, constrained, in the kinase than the receptor domain, while the numbers of synonymous substitutions (Ps) in the two domains were largely comparable. Pairwise values for Ps and Pn were calculated among 17 operational taxonomic units, including eight SLGs, the receptor domains of two SRKs, four SRAs (S-related A) and three SRBs (S-related B), which have high homologies with each other. The values of Ps and Pn of SLG were mostly comparable to those of the receptor domain of SRK. Dendrograms constructed on the basis of Pn and Ps indicated that SRA differentiated first, followed by SRB. The differentiation of SLG alleles is one of prerequisite factors for the establishment of self-incompatibility, and the allelic differentiation has occurred more than tens of million years ago.

scholarly journals Elucidation of the genetic architecture of self-incompatibility in olive: Evolutionary consequences and perspectives for orchard management

2017 ◽  
Vol 10 (9) ◽  
pp. 867-880 ◽  
Author(s):  
Pierre Saumitou-Laprade ◽  
Philippe Vernet ◽  
Xavier Vekemans ◽  
Sylvain Billiard ◽  
Sophie Gallina ◽  
...  
Keyword(s):  
Genetic Architecture ◽  
Self Incompatibility ◽  
Orchard Management ◽  
Evolutionary Consequences

scholarly journals Characterization of the SP11/SCR High-Affinity Binding Site Involved in Self/Nonself Recognition in Brassica Self-Incompatibility

2007 ◽  
Vol 19 (1) ◽  
pp. 107-117 ◽  
Author(s):  
Hiroko Shimosato ◽  
Naohiko Yokota ◽  
Hiroshi Shiba ◽  
Megumi Iwano ◽  
Tetsuyuki Entani ◽  
...  
Keyword(s):  
Binding Site ◽  
Affinity Binding ◽  
Self Incompatibility ◽  
High Affinity Binding ◽  
High Affinity ◽  
High Affinity Binding Site ◽  
Nonself Recognition

Genetic architecture of greek patients with isolated GnRH deficiency

2019 ◽  
Author(s):  
Maria Stamou ◽  
Petros Varnavas ◽  
Lacey Plummer ◽  
Vassiliki Koika ◽  
Neoklis Georgopoulos
Keyword(s):  
Genetic Architecture
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