The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.

The new dynamical game theoretic model of sex ratio evolution emphasizes the role of males as passive carriers of sex ratio genes. This shows inconsistency between population genetic models of sex ratio evolution and classical strategic models. In this work a novel technique of change of coordinates...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autor principal:	Krzysztof Argasinski
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2013
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/388d88d72f874e2b8ac892bfeb0cb30f
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:388d88d72f874e2b8ac892bfeb0cb30f
record_format	dspace
spelling	oai:doaj.org-article:388d88d72f874e2b8ac892bfeb0cb30f2021-11-18T07:49:10ZThe dynamics of sex ratio evolution: from the gene perspective to multilevel selection.1932-620310.1371/journal.pone.0060405https://doaj.org/article/388d88d72f874e2b8ac892bfeb0cb30f2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23613725/?tool=EBIhttps://doaj.org/toc/1932-6203The new dynamical game theoretic model of sex ratio evolution emphasizes the role of males as passive carriers of sex ratio genes. This shows inconsistency between population genetic models of sex ratio evolution and classical strategic models. In this work a novel technique of change of coordinates will be applied to the new model. This will reveal new aspects of the modelled phenomenon which cannot be shown or proven in the original formulation. The underlying goal is to describe the dynamics of selection of particular genes in the entire population, instead of in the same sex subpopulation, as in the previous paper and earlier population genetics approaches. This allows for analytical derivation of the unbiased strategic model from the model with rigorous non-simplified genetics. In effect, an alternative system of replicator equations is derived. It contains two subsystems: the first describes changes in gene frequencies (this is an alternative unbiased formalization of the Fisher-Dusing argument), whereas the second describes changes in the sex ratios in subpopulations of carriers of genes for each strategy. An intriguing analytical result of this work is that the fitness of a gene depends on the current sex ratio in the subpopulation of its carriers, not on the encoded individual strategy. Thus, the argument of the gene fitness function is not constant but is determined by the trajectory of the sex ratio among carriers of that gene. This aspect of the modelled phenomenon cannot be revealed by the static analysis. Dynamics of the sex ratio among gene carriers is driven by a dynamic "tug of war" between female carriers expressing the encoded strategic trait value and random partners of male carriers expressing the average population strategy (a primary sex ratio). This mechanism can be called "double-level selection". Therefore, gene interest perspective leads to multi-level selection.Krzysztof ArgasinskiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e60405 (2013)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Krzysztof Argasinski The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.
description	The new dynamical game theoretic model of sex ratio evolution emphasizes the role of males as passive carriers of sex ratio genes. This shows inconsistency between population genetic models of sex ratio evolution and classical strategic models. In this work a novel technique of change of coordinates will be applied to the new model. This will reveal new aspects of the modelled phenomenon which cannot be shown or proven in the original formulation. The underlying goal is to describe the dynamics of selection of particular genes in the entire population, instead of in the same sex subpopulation, as in the previous paper and earlier population genetics approaches. This allows for analytical derivation of the unbiased strategic model from the model with rigorous non-simplified genetics. In effect, an alternative system of replicator equations is derived. It contains two subsystems: the first describes changes in gene frequencies (this is an alternative unbiased formalization of the Fisher-Dusing argument), whereas the second describes changes in the sex ratios in subpopulations of carriers of genes for each strategy. An intriguing analytical result of this work is that the fitness of a gene depends on the current sex ratio in the subpopulation of its carriers, not on the encoded individual strategy. Thus, the argument of the gene fitness function is not constant but is determined by the trajectory of the sex ratio among carriers of that gene. This aspect of the modelled phenomenon cannot be revealed by the static analysis. Dynamics of the sex ratio among gene carriers is driven by a dynamic "tug of war" between female carriers expressing the encoded strategic trait value and random partners of male carriers expressing the average population strategy (a primary sex ratio). This mechanism can be called "double-level selection". Therefore, gene interest perspective leads to multi-level selection.
format	article
author	Krzysztof Argasinski
author_facet	Krzysztof Argasinski
author_sort	Krzysztof Argasinski
title	The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.
title_short	The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.
title_full	The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.
title_fullStr	The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.
title_full_unstemmed	The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.
title_sort	dynamics of sex ratio evolution: from the gene perspective to multilevel selection.
publisher	Public Library of Science (PLoS)
publishDate	2013
url	https://doaj.org/article/388d88d72f874e2b8ac892bfeb0cb30f
work_keys_str_mv	AT krzysztofargasinski thedynamicsofsexratioevolutionfromthegeneperspectivetomultilevelselection AT krzysztofargasinski dynamicsofsexratioevolutionfromthegeneperspectivetomultilevelselection
_version_	1718422904465522688

The dynamics of sex ratio evolution: from the gene perspective to multilevel selection.

Ejemplares similares