Trade‐off mediated by pyrrolizidine alkaloids predicts alternative reproductive tactics in ithomiine butterflies

2021 ◽  
Author(s):  
Adrea Gonzalez‐Karlsson ◽  
Gregory F. Grether
Keyword(s):  
Pyrrolizidine Alkaloids ◽  
Alternative Reproductive Tactics ◽  
Reproductive Tactics ◽  
Trade Off

scholarly journals Alternative reproductive tactics increase effective population size and decrease inbreeding in wild Atlantic salmon

2014 ◽  
Vol 7 (9) ◽  
pp. 1094-1106 ◽  
Author(s):  
Charles Perrier ◽  
Éric Normandeau ◽  
Mélanie Dionne ◽  
Antoine Richard ◽  
Louis Bernatchez
Keyword(s):  
Atlantic Salmon ◽  
Population Size ◽  
Effective Population Size ◽  
Alternative Reproductive Tactics ◽  
Effective Population ◽  
Reproductive Tactics

scholarly journals Alternative reproductive tactics and sex‐biased gene expression: the study of the bulb mite transcriptome

2014 ◽  
Vol 4 (5) ◽  
pp. 623-632 ◽  
Author(s):  
Michal T. Stuglik ◽  
Wiesław Babik ◽  
Zofia Prokop ◽  
Jacek Radwan
Keyword(s):  
Gene Expression ◽  
Alternative Reproductive Tactics ◽  
Reproductive Tactics ◽  
Bulb Mite

scholarly journals Alternative reproductive tactics in female horseshoe crabs

2012 ◽  
Vol 23 (5) ◽  
pp. 999-1008 ◽  
Author(s):  
Sheri L. Johnson ◽  
H. Jane Brockmann
Keyword(s):  
Alternative Reproductive Tactics ◽  
Reproductive Tactics ◽  
Horseshoe Crabs

Alternative Reproductive Tactics in Fishes

2008 ◽  
pp. 411-433 ◽  
Author(s):  
Rosemary Knapp ◽  
Bryan Neff
Keyword(s):  
Alternative Reproductive Tactics ◽  
Reproductive Tactics

scholarly journals Genetic correlations across genetically determined and developmentally plastic alternative reproductive tactics

2019 ◽  
Author(s):  
Jessica K. Abbott ◽  
Oscar Rios-Cardenas ◽  
Molly Morris
Keyword(s):  
Body Size ◽  
Genetic Correlation ◽  
Genetic Correlations ◽  
Phenotypic Expression ◽  
Alternative Reproductive Tactics ◽  
Phenotypic Trait ◽  
Sexual Antagonism ◽  
Reproductive Tactics ◽  
Genetic Conflict ◽  
Genetically Determined

AbstractAlternative reproductive tactics occur when individuals of the same sex have a suite of morphological and/or behavioural traits that allow them to pursue different reproductive strategies. A common pattern is e.g. the existence of “courter” and “sneaker” tactics within males. We have previously argued that alternative reproductive tactics should be subject to genetic conflict over the phenotypic expression of traits, similar to sexual antagonism. In this process, which we called intra-locus tactical conflict, genetically determined tactics experience conflicting selection on a shared phenotypic trait, such as body size, but a positive genetic correlation between tactics in body size prevents either tactic from reaching its optimum. Recently, other authors have attempted to extend this idea to developmentally plastic alternative reproductive tactics, with mixed results. However, it is not clear whether we should expect intra-locus tactical conflict in developmentally plastic tactics or not. We have therefore run a series of simulation models investigating under what conditions we should expect to see positive estimates of the inter-tactical genetic correlation, since a positive genetic correlation is a prerequisite for the existence of intra-locus tactical conflict. We found that for autosomal, X-linked, and Y-linked genetically-determined tactics, estimated inter-tactical genetic correlations were generally high. However, for developmentally plastic tactics, the genetic correlation depends on the properties of the switching threshold between tactics. If it is fixed, then estimated genetic correlations are positive, but if there is genetic variation in the switch-point, then any sign and magnitude of estimated genetic correlation is possible, even for highly heritable traits where the true underlying correlation is perfect. This means that caution should be used when investigating genetic constraints in plastic phenotypes.

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