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 Macroevolutionary consequences of sexual conflict

2018 ◽  
Vol 14 (6) ◽  
pp. 20180186
Author(s):  
Jo S. Hermansen ◽  
Jostein Starrfelt ◽  
Kjetil L. Voje ◽  
Nils C. Stenseth
Keyword(s):  
Sexual Selection ◽  
Genetic Architecture ◽  
Time Frame ◽  
Sexual Conflicts ◽  
Males And Females ◽  
Selection For ◽  
Evolutionary Consequences ◽  
Future Work ◽  
Shared Genetic

Intralocus sexual conflicts arise whenever the fitness optima for a trait expressed in both males and females differ between the sexes and shared genetic architecture constrains the sexes from evolving independently towards their respective optima. Such sexual conflicts are commonplace in nature, yet their long-term evolutionary consequences remain unexplored. Using a Bayesian phylogenetic comparative framework, we studied the macroevolutionary dynamics of intersexual trait integration in stalk-eyed flies (Diopsidae) spanning a time frame of more than 25 Myr. We report that increased intensity of sexual selection on male eyestalks is associated with reduced intersexual eyestalk integration, as well as sex-specific rates of eyestalk evolution. Despite this, lineages where males have been under strong sexual selection for millions of years still exhibit high levels of intersexual trait integration. This low level of decoupling between the sexes may indicate that exaggerated female eyestalks are in fact adaptive—or alternatively, that there are strong constraints on reducing trait integration between the sexes. Future work should seek to clarify the relative roles of constraints and selection in contributing to the varying levels of intersexual trait integration in stalk-eyed flies, and in this way clarify whether sexual conflicts can act as constraints on adaptive evolution even on macroevolutionary time scales.

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

Loss of Self‐Incompatibility and Its Evolutionary Consequences

2008 ◽  
Vol 169 (1) ◽  
pp. 93-104 ◽  
Author(s):  
Boris Igic ◽  
Russell Lande ◽  
Joshua R. Kohn
Keyword(s):  
Self Incompatibility ◽  
Loss Of Self ◽  
Evolutionary Consequences

scholarly journals Signal function drives phenotypic and genetic diversity: the effects of signalling individual identity, quality or behavioural strategy

2017 ◽  
Vol 372 (1724) ◽  
pp. 20160347 ◽  
Author(s):  
Elizabeth A. Tibbetts ◽  
Sean P. Mullen ◽  
James Dale
Keyword(s):  
Genetic Diversity ◽  
Genetic Architecture ◽  
Individual Identity ◽  
Signal Function ◽  
Phenotypic Properties ◽  
Animal Coloration ◽  
Behavioural Strategy ◽  
Evolutionary Consequences ◽  
Perception Function ◽  
Phenotypic And Genetic Diversity

Animal coloration is influenced by selection pressures associated with communication. During communication, signallers display traits that inform receivers and modify receiver behaviour in ways that benefit signallers. Here, we discuss how selection on signallers to convey different kinds of information influences animal phenotypes and genotypes. Specifically, we address the phenotypic and genetic consequences of communicating three different kinds of information: individual identity, behavioural strategy and quality. Previous work has shown signals that convey different kinds of information differ in terms of the (i) type of selection acting on signallers (e.g. directional, stabilizing, or negative frequency dependent), and (ii) developmental basis of signals (i.e. heritability, genetic architecture). These differences result in signals that convey different information having consistently different phenotypic properties, including the amount, modality and continuity of intraspecific variation. Understanding how communication influences animal phenotypes may allow researchers to quickly identify putative functions of colour variation prior to experimentation. Signals that convey different information will also have divergent evolutionary consequences. For example, signalling individual identity can increase genetic diversity, signalling quality may decrease diversity, and signalling strategy can constrain adaptation and contribute to speciation. Considering recent advances in genomic resources, our framework highlights new opportunities to resolve the evolutionary consequences of selection on communication across diverse taxa and signal types. This article is part of the themed issue ‘Animal coloration: production, perception, function and application’.

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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