Hysteresis can grant fitness in stochastically varying environment.

Although the existence of multiple stable phenotypes of living organisms enables random switching between phenotypes as well as non-random history dependent switching called hysteresis, only random switching has been considered in prior experimental and theoretical models of adaptation to variable e...

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Autores principales:	Gary Friedman, Stephen McCarthy, Dmitrii Rachinskii
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/9e1404b4cb1242abad8451a979f3e38f
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spelling	oai:doaj.org-article:9e1404b4cb1242abad8451a979f3e38f2021-11-25T06:07:00ZHysteresis can grant fitness in stochastically varying environment.1932-620310.1371/journal.pone.0103241https://doaj.org/article/9e1404b4cb1242abad8451a979f3e38f2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/25068284/?tool=EBIhttps://doaj.org/toc/1932-6203Although the existence of multiple stable phenotypes of living organisms enables random switching between phenotypes as well as non-random history dependent switching called hysteresis, only random switching has been considered in prior experimental and theoretical models of adaptation to variable environments. This work considers the possibility that hysteresis may also evolve together with random phenotype switching to maximize population growth. In addition to allowing the possibility that switching rates between different phenotypes may depend not only on a continuous environmental input variable, but also on the phenotype itself, the present work considers an opportunity cost of the switching events. This opportunity cost arises as a result of a lag phase experimentally observed after phenotype switching and stochastic behavior of the environmental input. It is shown that stochastic environmental variation results in maximal asymptotic growth rate when organisms display hysteresis for sufficiently slowly varying environmental input. At the same time, sinusoidal input does not cause evolution of memory suggesting that the connection between the lag phase, stochastic environmental variation and evolution of hysteresis is a result of a stochastic resonance type phenomenon.Gary FriedmanStephen McCarthyDmitrii RachinskiiPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 7, p e103241 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Gary Friedman Stephen McCarthy Dmitrii Rachinskii Hysteresis can grant fitness in stochastically varying environment.
description	Although the existence of multiple stable phenotypes of living organisms enables random switching between phenotypes as well as non-random history dependent switching called hysteresis, only random switching has been considered in prior experimental and theoretical models of adaptation to variable environments. This work considers the possibility that hysteresis may also evolve together with random phenotype switching to maximize population growth. In addition to allowing the possibility that switching rates between different phenotypes may depend not only on a continuous environmental input variable, but also on the phenotype itself, the present work considers an opportunity cost of the switching events. This opportunity cost arises as a result of a lag phase experimentally observed after phenotype switching and stochastic behavior of the environmental input. It is shown that stochastic environmental variation results in maximal asymptotic growth rate when organisms display hysteresis for sufficiently slowly varying environmental input. At the same time, sinusoidal input does not cause evolution of memory suggesting that the connection between the lag phase, stochastic environmental variation and evolution of hysteresis is a result of a stochastic resonance type phenomenon.
format	article
author	Gary Friedman Stephen McCarthy Dmitrii Rachinskii
author_facet	Gary Friedman Stephen McCarthy Dmitrii Rachinskii
author_sort	Gary Friedman
title	Hysteresis can grant fitness in stochastically varying environment.
title_short	Hysteresis can grant fitness in stochastically varying environment.
title_full	Hysteresis can grant fitness in stochastically varying environment.
title_fullStr	Hysteresis can grant fitness in stochastically varying environment.
title_full_unstemmed	Hysteresis can grant fitness in stochastically varying environment.
title_sort	hysteresis can grant fitness in stochastically varying environment.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/9e1404b4cb1242abad8451a979f3e38f
work_keys_str_mv	AT garyfriedman hysteresiscangrantfitnessinstochasticallyvaryingenvironment AT stephenmccarthy hysteresiscangrantfitnessinstochasticallyvaryingenvironment AT dmitriirachinskii hysteresiscangrantfitnessinstochasticallyvaryingenvironment
_version_	1718414178607169536

Hysteresis can grant fitness in stochastically varying environment.

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