The influence of development on evolutionary dynamics: A theoretical investigation.

Persistent Link:
http://hdl.handle.net/10150/185631
Title:
The influence of development on evolutionary dynamics: A theoretical investigation.
Author:
Rice, Sean Hill.
Issue Date:
1991
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
Development is the process by which genes build organisms. It thus determines how genetic variation is translated into phenotypic variation. The dynamics of evolution are therefore determined not only by the action of selection and drift, but also by the processes by which organisms are built. I present a general model with which to study how selection acts on a developmental program. This model explains, and clarifies, the trend towards conservatism in early development. Furthermore, it predicts that this conservatism will be reduced under certain environmental conditions, namely when fitness functions are fluctuating. This leads to the prediction of the pattern of nearshore innovation seen in the fossil record. A more careful test of the theory requires a system in which we have some understanding of the details of development. I provide this in the form of a model of shell growth in mollusks. This model predicts shell form as a function of the interactions between shell producing tissues during growth. Using this system, I test the prediction of the general model that characters that are not correlated with, but not independent of, many other characters should evolve slowly. This prediction is upheld by data gathered from 8 genera of marine gastropods.
Type:
text; Dissertation-Reproduction (electronic)
Keywords:
Dissertations, Academic; Evolutionary genetics; Genetics.
Degree Name:
Ph.D.
Degree Level:
doctoral
Degree Program:
Ecology and Evolutionary Biology; Graduate College
Degree Grantor:
University of Arizona
Advisor:
Rosenzweig, Michael L.

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleThe influence of development on evolutionary dynamics: A theoretical investigation.en_US
dc.creatorRice, Sean Hill.en_US
dc.contributor.authorRice, Sean Hill.en_US
dc.date.issued1991en_US
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractDevelopment is the process by which genes build organisms. It thus determines how genetic variation is translated into phenotypic variation. The dynamics of evolution are therefore determined not only by the action of selection and drift, but also by the processes by which organisms are built. I present a general model with which to study how selection acts on a developmental program. This model explains, and clarifies, the trend towards conservatism in early development. Furthermore, it predicts that this conservatism will be reduced under certain environmental conditions, namely when fitness functions are fluctuating. This leads to the prediction of the pattern of nearshore innovation seen in the fossil record. A more careful test of the theory requires a system in which we have some understanding of the details of development. I provide this in the form of a model of shell growth in mollusks. This model predicts shell form as a function of the interactions between shell producing tissues during growth. Using this system, I test the prediction of the general model that characters that are not correlated with, but not independent of, many other characters should evolve slowly. This prediction is upheld by data gathered from 8 genera of marine gastropods.en_US
dc.typetexten_US
dc.typeDissertation-Reproduction (electronic)en_US
dc.subjectDissertations, Academicen_US
dc.subjectEvolutionary geneticsen_US
dc.subjectGenetics.en_US
thesis.degree.namePh.D.en_US
thesis.degree.leveldoctoralen_US
thesis.degree.disciplineEcology and Evolutionary Biologyen_US
thesis.degree.disciplineGraduate Collegeen_US
thesis.degree.grantorUniversity of Arizonaen_US
dc.contributor.advisorRosenzweig, Michael L.en_US
dc.contributor.committeememberStrauss, Richard E.en_US
dc.contributor.committeememberWalsh, J. Bruceen_US
dc.contributor.committeememberDonoghue, Michael J.en_US
dc.identifier.proquest9208030en_US
dc.identifier.oclc711881168en_US
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