File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Evolution of morphological differences with moderate genetic correlations among traits as exemplified by two flycatcher species (Ficedula; Muscicapidae)

TitleEvolution of morphological differences with moderate genetic correlations among traits as exemplified by two flycatcher species (Ficedula; Muscicapidae)
Authors
Keywordsgenetic correlation
selection
Ficeduia albicollis
genetic constraints
genetic covariance
Ficeduia hypoleuca
quantitative characters
Issue Date1994
Citation
Biological Journal of the Linnean Society, 1994, v. 52, n. 1, p. 19-30 How to Cite?
AbstractTheoretical work on multivariate evolution predicts that genetic correlations can act to constrain the rate at which new adaptive peaks are reached, but there is very limited empirical information available on this issue so far. To evaluate the importance of genetic correlations for evolutionary change, we studied the morphological differences between two flycatcher species (Ficeduia albicollis and F. hypoleuca) using both univariate and multivariate quantitative genetic models. Comparison of the results obtained using these different models revealed that even relatively low genetic correlations between traits will considerably increase the net selection forces needed for evolutionary changes in morphology. In particular, the divergence in wing and tail length, which are positively genetically correlated, would require a considerable amount of antagonistic selection. Because of the genetic correlations, strong selection will be needed to retain certain traits unchanged while others are changing. Based on these results, we argue that it is unlikely that small morphological differences such as between these two species could have evolved during a short (200 years) time period, i.e. the period of sympatry of these species in Sweden. These findings support the hypothesis that even relatively low genetic correlations may constrain short‐term adaptive evolution in natural populations. Copyright © 1994, Wiley Blackwell. All rights reserved
Persistent Identifierhttp://hdl.handle.net/10722/292434
ISSN
2023 Impact Factor: 2.0
2023 SCImago Journal Rankings: 0.764
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorMERILÄ, JUHA-
dc.contributor.authorBJÖRKLUND, MATS-
dc.contributor.authorGUSTAFSSON, LARS-
dc.date.accessioned2020-11-17T14:56:29Z-
dc.date.available2020-11-17T14:56:29Z-
dc.date.issued1994-
dc.identifier.citationBiological Journal of the Linnean Society, 1994, v. 52, n. 1, p. 19-30-
dc.identifier.issn0024-4066-
dc.identifier.urihttp://hdl.handle.net/10722/292434-
dc.description.abstractTheoretical work on multivariate evolution predicts that genetic correlations can act to constrain the rate at which new adaptive peaks are reached, but there is very limited empirical information available on this issue so far. To evaluate the importance of genetic correlations for evolutionary change, we studied the morphological differences between two flycatcher species (Ficeduia albicollis and F. hypoleuca) using both univariate and multivariate quantitative genetic models. Comparison of the results obtained using these different models revealed that even relatively low genetic correlations between traits will considerably increase the net selection forces needed for evolutionary changes in morphology. In particular, the divergence in wing and tail length, which are positively genetically correlated, would require a considerable amount of antagonistic selection. Because of the genetic correlations, strong selection will be needed to retain certain traits unchanged while others are changing. Based on these results, we argue that it is unlikely that small morphological differences such as between these two species could have evolved during a short (200 years) time period, i.e. the period of sympatry of these species in Sweden. These findings support the hypothesis that even relatively low genetic correlations may constrain short‐term adaptive evolution in natural populations. Copyright © 1994, Wiley Blackwell. All rights reserved-
dc.languageeng-
dc.relation.ispartofBiological Journal of the Linnean Society-
dc.subjectgenetic correlation-
dc.subjectselection-
dc.subjectFiceduia albicollis-
dc.subjectgenetic constraints-
dc.subjectgenetic covariance-
dc.subjectFiceduia hypoleuca-
dc.subjectquantitative characters-
dc.titleEvolution of morphological differences with moderate genetic correlations among traits as exemplified by two flycatcher species (Ficedula; Muscicapidae)-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1111/j.1095-8312.1994.tb00976.x-
dc.identifier.scopuseid_2-s2.0-0028083060-
dc.identifier.volume52-
dc.identifier.issue1-
dc.identifier.spage19-
dc.identifier.epage30-
dc.identifier.eissn1095-8312-
dc.identifier.isiWOS:A1994NM26000002-
dc.identifier.issnl0024-4066-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats