Intralocus sexual conflict, adaptive sex allocation, and the heritability of fitness

2015 ◽  
Vol 28 (11) ◽  
pp. 1975-1985 ◽  
Author(s):  
R. Calsbeek ◽  
M. C. Duryea ◽  
D. Goedert ◽  
P. Bergeron ◽  
R. M. Cox
Keyword(s):  
Sexual Conflict ◽  
Sex Allocation ◽  
Intralocus Sexual Conflict

scholarly journals Contrasting effects of intralocus sexual conflict on sexually antagonistic coevolution

2016 ◽  
Vol 113 (8) ◽  
pp. E978-E986 ◽  
Author(s):  
Tanya M. Pennell ◽  
Freek J. H. de Haas ◽  
Edward H. Morrow ◽  
G. Sander van Doorn
Keyword(s):  
Sexual Conflict ◽  
Genetic Model ◽  
Arms Races ◽  
Female Partners ◽  
Intralocus Sexual Conflict ◽  
Antagonistic Coevolution ◽  
Evolutionary Conflict ◽  
Quantitative Genetic Model ◽  
Female Specific ◽  
Evolutionary Consequences

Evolutionary conflict between the sexes can induce arms races in which males evolve traits that are detrimental to the fitness of their female partners, and vice versa. This interlocus sexual conflict (IRSC) has been proposed as a cause of perpetual intersexual antagonistic coevolution with wide-ranging evolutionary consequences. However, theory suggests that the scope for perpetual coevolution is limited, if traits involved in IRSC are subject to pleiotropic constraints. Here, we consider a biologically plausible form of pleiotropy that has hitherto been ignored in treatments of IRSC and arrive at drastically different conclusions. Our analysis is based on a quantitative genetic model of sexual conflict, in which genes controlling IRSC traits have side effects in the other sex, due to incompletely sex-limited gene expression. As a result, the genes are exposed to intralocus sexual conflict (IASC), a tug-of-war between opposing male- and female-specific selection pressures. We find that the interaction between the two forms of sexual conflict has contrasting effects on antagonistic coevolution: Pleiotropic constraints stabilize the dynamics of arms races if the mating traits are close to evolutionary equilibrium but can prevent populations from ever reaching such a state. Instead, the sexes are drawn into a continuous cycle of arms races, causing the buildup of IASC, alternated by phases of IASC resolution that trigger the next arms race. These results encourage an integrative perspective on the biology of sexual conflict and generally caution against relying exclusively on equilibrium stability analysis.

scholarly journals Reproductive Behaviour Evolves Rapidly When Intralocus Sexual Conflict Is Removed

PLoS ONE ◽  
2008 ◽  
Vol 3 (5) ◽  
pp. e2187 ◽  
Author(s):  
Stéphanie Bedhomme ◽  
Nagaraj G. Prasad ◽  
Pan-Pan Jiang ◽  
Adam K. Chippindale
Keyword(s):  
Sexual Conflict ◽  
Reproductive Behaviour ◽  
Intralocus Sexual Conflict

scholarly journals INTRALOCUS SEXUAL CONFLICT AND ENVIRONMENTAL STRESS

Evolution ◽  
2014 ◽  
pp. n/a-n/a ◽  
Author(s):  
David Berger ◽  
Karl Grieshop ◽  
Martin I. Lind ◽  
Julieta Goenaga ◽  
Alexei A. Maklakov ◽  
...  
Keyword(s):  
Environmental Stress ◽  
Sexual Conflict ◽  
Intralocus Sexual Conflict
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