When is Offspring Viability Fitness a Measure of Paternal Fitness and When is it not?. (29th November 2021)
- Record Type:
- Journal Article
- Title:
- When is Offspring Viability Fitness a Measure of Paternal Fitness and When is it not?. (29th November 2021)
- Main Title:
- When is Offspring Viability Fitness a Measure of Paternal Fitness and When is it not?
- Authors:
- Fitzpatrick, Courtney L
Wade, Michael J - Editors:
- Hughes, Kim
- Abstract:
- Abstract: We use population genetics to model the evolution of a gene with an indirect effect owing to paternal care and with a second pleiotropic, direct effect on offspring viability. We use the model to illustrate how the common empirical practice of considering offspring viability as a component of parent fitness can confound a gene's direct and indirect fitness effects. We investigate when this confounding results in a distorted picture of overall evolution and when it does not. We find that the practice has no effect on mean fitness, W, but it does have an effect on the dynamics of gene frequency change, ∆q. We also find that, for some regions of parameter space associated with fitness trade-offs, the distortion is not only quantitative but also qualitative, obscuring the direction of gene frequency change. Because it affects the evolutionary dynamics, it also affects the expected amount of genetic variation at mutation-selection balance, an important consideration in molecular evolution. We discuss empirical techniques for separating direct from indirect effects and how field studies measuring the value of male paternal care might be improved by using them.
- Is Part Of:
- Journal of heredity. Volume 113:Number 1(2022)
- Journal:
- Journal of heredity
- Issue:
- Volume 113:Number 1(2022)
- Issue Display:
- Volume 113, Issue 1 (2022)
- Year:
- 2022
- Volume:
- 113
- Issue:
- 1
- Issue Sort Value:
- 2022-0113-0001-0000
- Page Start:
- 48
- Page End:
- 53
- Publication Date:
- 2021-11-29
- Subjects:
- direct genetic effects -- indirect genetic effects -- mathematical model -- paternal care -- population genetics
Breeding -- Periodicals
Plant breeding -- Periodicals
Heredity -- Periodicals
576.5 - Journal URLs:
- http://jhered.oxfordjournals.org/ ↗
http://ukcatalogue.oup.com/ ↗ - DOI:
- 10.1093/jhered/esab055 ↗
- Languages:
- English
- ISSNs:
- 0022-1503
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4998.000000
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 20954.xml