{"title":"Directional Internal Selection.","authors":"Günter P Wagner, James DiFrisco, Mihaela Pavličev","doi":"10.1002/jez.b.70044","DOIUrl":null,"url":null,"abstract":"<p><p>Internal selection is a process of natural selection in which fitness differences between organisms are caused by factors internal to the organism and are invariant across environments. Internal selection has been most successfully applied to explain conserved features such as the phylotypic stage of gnathostomes. In this contribution, we introduce a form of internal selection that can drive evolutionary transformations rather than trait conservation, that is directional internal selection. The basic idea is that evolutionary change of one character can induce directional selection on another trait due to interdependencies internal to the organism. We provide a formal definition of this concept and discuss examples of directional internal selection as well as its implications.</p>","PeriodicalId":15682,"journal":{"name":"Journal of experimental zoology. Part B, Molecular and developmental evolution","volume":" ","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of experimental zoology. Part B, Molecular and developmental evolution","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1002/jez.b.70044","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"DEVELOPMENTAL BIOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Internal selection is a process of natural selection in which fitness differences between organisms are caused by factors internal to the organism and are invariant across environments. Internal selection has been most successfully applied to explain conserved features such as the phylotypic stage of gnathostomes. In this contribution, we introduce a form of internal selection that can drive evolutionary transformations rather than trait conservation, that is directional internal selection. The basic idea is that evolutionary change of one character can induce directional selection on another trait due to interdependencies internal to the organism. We provide a formal definition of this concept and discuss examples of directional internal selection as well as its implications.
期刊介绍：
Developmental Evolution is a branch of evolutionary biology that integrates evidence and concepts from developmental biology, phylogenetics, comparative morphology, evolutionary genetics and increasingly also genomics, systems biology as well as synthetic biology to gain an understanding of the structure and evolution of organisms.
The Journal of Experimental Zoology -B: Molecular and Developmental Evolution provides a forum where these fields are invited to bring together their insights to further a synthetic understanding of evolution from the molecular through the organismic level. Contributions from all these branches of science are welcome to JEZB.
We particularly encourage submissions that apply the tools of genomics, as well as systems and synthetic biology to developmental evolution. At this time the impact of these emerging fields on developmental evolution has not been explored to its fullest extent and for this reason we are eager to foster the relationship of systems and synthetic biology with devo evo.
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