Advantages of sexual reproduction resulting from sibling diversity: Effects of selection intensity, environmental variance, and reduced genetic diversity

Makoto Douge, Yoh Iwasa

Research output: Contribution to journalArticle

Abstract

Background: In a previous paper, we showed that greater sibling diversity among sexual offspring might help to maintain sexual reproduction in environments that are spatially heterogeneous and temporally fluctuating and in which sib-competition is very intense. Question: Can sexual reproduction be maintained in the face of the two-fold cost of sex under milder selection pressure, environmental variance, and reduced genetic diversity? Methodology: Mathematical and numerical analyses of the sib-competition model with several modifications. Conclusions: The advantages of sexual reproduction are attenuated by milder selection pressure and environmental variance but enhanced by reduced genetic diversity. Sibcompetition plays an important role in maintaining sex when the appropriate conditions are present.

Original languageEnglish
Pages (from-to)677-691
Number of pages15
JournalEvolutionary Ecology Research
Volume18
Issue number6
Publication statusPublished - Nov 1 2017

Fingerprint

selection intensity
sexual reproduction
genetic variation
gender
fold
methodology
cost
genetic diversity
effect
selection pressure

All Science Journal Classification (ASJC) codes

  • Ecology, Evolution, Behavior and Systematics

Cite this

Advantages of sexual reproduction resulting from sibling diversity : Effects of selection intensity, environmental variance, and reduced genetic diversity. / Douge, Makoto; Iwasa, Yoh.

In: Evolutionary Ecology Research, Vol. 18, No. 6, 01.11.2017, p. 677-691.

Research output: Contribution to journalArticle

@article{29414891d670432784b217ad77ff53fd,
title = "Advantages of sexual reproduction resulting from sibling diversity: Effects of selection intensity, environmental variance, and reduced genetic diversity",
abstract = "Background: In a previous paper, we showed that greater sibling diversity among sexual offspring might help to maintain sexual reproduction in environments that are spatially heterogeneous and temporally fluctuating and in which sib-competition is very intense. Question: Can sexual reproduction be maintained in the face of the two-fold cost of sex under milder selection pressure, environmental variance, and reduced genetic diversity? Methodology: Mathematical and numerical analyses of the sib-competition model with several modifications. Conclusions: The advantages of sexual reproduction are attenuated by milder selection pressure and environmental variance but enhanced by reduced genetic diversity. Sibcompetition plays an important role in maintaining sex when the appropriate conditions are present.",
author = "Makoto Douge and Yoh Iwasa",
year = "2017",
month = "11",
day = "1",
language = "English",
volume = "18",
pages = "677--691",
journal = "Evolutionary Ecology Research",
issn = "1522-0613",
publisher = "Evolutionary Ecology Research",
number = "6",

}

TY - JOUR

T1 - Advantages of sexual reproduction resulting from sibling diversity

T2 - Effects of selection intensity, environmental variance, and reduced genetic diversity

AU - Douge, Makoto

AU - Iwasa, Yoh

PY - 2017/11/1

Y1 - 2017/11/1

N2 - Background: In a previous paper, we showed that greater sibling diversity among sexual offspring might help to maintain sexual reproduction in environments that are spatially heterogeneous and temporally fluctuating and in which sib-competition is very intense. Question: Can sexual reproduction be maintained in the face of the two-fold cost of sex under milder selection pressure, environmental variance, and reduced genetic diversity? Methodology: Mathematical and numerical analyses of the sib-competition model with several modifications. Conclusions: The advantages of sexual reproduction are attenuated by milder selection pressure and environmental variance but enhanced by reduced genetic diversity. Sibcompetition plays an important role in maintaining sex when the appropriate conditions are present.

AB - Background: In a previous paper, we showed that greater sibling diversity among sexual offspring might help to maintain sexual reproduction in environments that are spatially heterogeneous and temporally fluctuating and in which sib-competition is very intense. Question: Can sexual reproduction be maintained in the face of the two-fold cost of sex under milder selection pressure, environmental variance, and reduced genetic diversity? Methodology: Mathematical and numerical analyses of the sib-competition model with several modifications. Conclusions: The advantages of sexual reproduction are attenuated by milder selection pressure and environmental variance but enhanced by reduced genetic diversity. Sibcompetition plays an important role in maintaining sex when the appropriate conditions are present.

UR - http://www.scopus.com/inward/record.url?scp=85045128745&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85045128745&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:85045128745

VL - 18

SP - 677

EP - 691

JO - Evolutionary Ecology Research

JF - Evolutionary Ecology Research

SN - 1522-0613

IS - 6

ER -