A Morphological Integration Perspective on the Evolution of Dimorphism among Sexes and Social Insect Castes
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F19%3A73598320" target="_blank" >RIV/61989592:15310/19:73598320 - isvavai.cz</a>
Result on the web
<a href="https://academic.oup.com/icb/article/59/2/410/5497802" target="_blank" >https://academic.oup.com/icb/article/59/2/410/5497802</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1093/icb/icz053" target="_blank" >10.1093/icb/icz053</a>
Alternative languages
Result language
angličtina
Original language name
A Morphological Integration Perspective on the Evolution of Dimorphism among Sexes and Social Insect Castes
Original language description
Many species have evolved alternate phenotypes, thus enabling individuals to conditionally produce phenotypes that are favorable for reproductive success. Examples of this phenomenon include sexual dimorphism, alternative reproductive strategies, and social insect castes. While the evolutionary functions and developmental mechanisms of dimorphic phenotypes have been studied extensively, little attention has focused on the evolutionary covariance between each phenotype. We extend the conceptual framework and methods of morphological integration to hypothesize that dimorphic traits tend to be less integrated between sexes or social castes. In the case of social insects, we describe results from our recent study of an ant genus in which workers have major and minor worker castes that perform different behavioral repertoires in and around the nest. In the case of birds, we describe a new analysis of a family of songbirds that exhibits plumage coloration that can differ greatly between males and females, with apparently independent changes in each sex. Ant head shape, which is highly specialized in each worker caste, was weakly integrated between worker castes, whereas thorax shape, which is more monomorphic, was tightly integrated. Similarly, in birds, we found a negative association between dimorphism and the degree of integration between sexes. We also found that integration decreased in fairy wrens (Malurus) for many feather patches that evolved greater dichromatism. Together, this suggests that the process of evolving increased dimorphism results in a decrease in integration between sexes and social castes. We speculate that once a mechanism for dimorphism evolves, that mechanism can create independent variation in one sex or caste upon which selection may act.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10615 - Ornithology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
INTEGRATIVE AND COMPARATIVE BIOLOGY
ISSN
1540-7063
e-ISSN
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Volume of the periodical
59
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
10
Pages from-to
410-419
UT code for WoS article
000493075400016
EID of the result in the Scopus database
2-s2.0-85071701095