Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1007/s10709-017-9966-x http://hdl.handle.net/11449/231398 |
Resumo: | Metric (e.g., body size) and meristic (e.g., bristle number) traits are of general use in quantitative genetic studies, and the phenotypic variance is subdivided into a genetic and a non-genetic environmental component. The non-genetic variance may have two origins: a common garden effect between individuals and a developmental instability within the same individual. Developmental instability may be studied by considering the fluctuating asymmetry (FA) between the two sides of the body. The isofemale line technique is a convenient method for investigating the architecture of natural populations but has been rarely implemented for investigating FA. In this paper, we use this experimental design for analyzing four meristic traits in eight populations of the cosmopolitan Zaprionus indianus. A study of the correlation between left and right side of each line revealed that almost 90% of the variability was due to a developmental noise, while a much higher correlation among the means of the lines from the same population was observed. A slight trend toward a directional asymmetry was observed: more thoracic bristles on the left side. Four kinds of indices, scaled or non-scaled to the mean were used for comparing the different traits. Unscaled values (mean absolute values or standard deviation of each line) revealed a linear increase with the means. Interestingly the results of ovariole number were included in the same regression. With the scaled indices (mean absolute divided by each individual value or stadard deviation devided by the mean), the differences among traits were considerably decreased, but still remained significant. The mean FA of the various traits were not correlated, suggesting that each trait harbors its own developmental stability. The CVs of FA were high with a magnitude similar to those of the trait themselves, slightly less than 10%. Finally, even with the isofemale line design, which is a powerful means for unravelling slight genetic variations, we did not to find any clear indication of a genetic component of FA under the optimal environmental conditions used in this study. |
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Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianusAbdominal bristlesBilateral symmetryDrosophilaNatural populationsOvariole numberSternopleural bristlesMetric (e.g., body size) and meristic (e.g., bristle number) traits are of general use in quantitative genetic studies, and the phenotypic variance is subdivided into a genetic and a non-genetic environmental component. The non-genetic variance may have two origins: a common garden effect between individuals and a developmental instability within the same individual. Developmental instability may be studied by considering the fluctuating asymmetry (FA) between the two sides of the body. The isofemale line technique is a convenient method for investigating the architecture of natural populations but has been rarely implemented for investigating FA. In this paper, we use this experimental design for analyzing four meristic traits in eight populations of the cosmopolitan Zaprionus indianus. A study of the correlation between left and right side of each line revealed that almost 90% of the variability was due to a developmental noise, while a much higher correlation among the means of the lines from the same population was observed. A slight trend toward a directional asymmetry was observed: more thoracic bristles on the left side. Four kinds of indices, scaled or non-scaled to the mean were used for comparing the different traits. Unscaled values (mean absolute values or standard deviation of each line) revealed a linear increase with the means. Interestingly the results of ovariole number were included in the same regression. With the scaled indices (mean absolute divided by each individual value or stadard deviation devided by the mean), the differences among traits were considerably decreased, but still remained significant. The mean FA of the various traits were not correlated, suggesting that each trait harbors its own developmental stability. The CVs of FA were high with a magnitude similar to those of the trait themselves, slightly less than 10%. Finally, even with the isofemale line design, which is a powerful means for unravelling slight genetic variations, we did not to find any clear indication of a genetic component of FA under the optimal environmental conditions used in this study.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Departamento de Biologia Instituto de Biociências Letras e Ciências Exatas, de São José do Rio Preto, Rua Cristovão Colombo, 2265Departamento das Ciências da Computação e Estatística Instituto de Biociências Letras e Ciências Exatas, de São José do Rio Preto, Rua Cristovão Colombo, 2265Institut de Systématique Evolution Biodiversité UMR7205 CNRS MNHN UPMC EPHE Muséum National d’Histoire Naturelle Sorbonne UniversitésLaboratoire Évolution Génomes Comportement Écologie (EGCE) CNRS IRD Univ. Paris-sud Université Paris-SaclayFAPESP: 2014/14059-0Letras e Ciências ExatasSorbonne UniversitésUniversité Paris-SaclayMadi-Ravazzi, LilianSegala, Luis FernandoDebat, VincentDavid, Jean R.2022-04-29T08:45:05Z2022-04-29T08:45:05Z2017-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article307-317http://dx.doi.org/10.1007/s10709-017-9966-xGenetica, v. 145, n. 3, p. 307-317, 2017.1573-68570016-6707http://hdl.handle.net/11449/23139810.1007/s10709-017-9966-x2-s2.0-85018476521Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengGeneticainfo:eu-repo/semantics/openAccess2022-04-29T08:45:05Zoai:repositorio.unesp.br:11449/231398Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:08:15.035959Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus |
title |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus |
spellingShingle |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus Madi-Ravazzi, Lilian Abdominal bristles Bilateral symmetry Drosophila Natural populations Ovariole number Sternopleural bristles |
title_short |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus |
title_full |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus |
title_fullStr |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus |
title_full_unstemmed |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus |
title_sort |
Fluctuating asymmetry of meristic traits: an isofemale line analysis in an invasive drosophilid, Zaprionus indianus |
author |
Madi-Ravazzi, Lilian |
author_facet |
Madi-Ravazzi, Lilian Segala, Luis Fernando Debat, Vincent David, Jean R. |
author_role |
author |
author2 |
Segala, Luis Fernando Debat, Vincent David, Jean R. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Letras e Ciências Exatas Sorbonne Universités Université Paris-Saclay |
dc.contributor.author.fl_str_mv |
Madi-Ravazzi, Lilian Segala, Luis Fernando Debat, Vincent David, Jean R. |
dc.subject.por.fl_str_mv |
Abdominal bristles Bilateral symmetry Drosophila Natural populations Ovariole number Sternopleural bristles |
topic |
Abdominal bristles Bilateral symmetry Drosophila Natural populations Ovariole number Sternopleural bristles |
description |
Metric (e.g., body size) and meristic (e.g., bristle number) traits are of general use in quantitative genetic studies, and the phenotypic variance is subdivided into a genetic and a non-genetic environmental component. The non-genetic variance may have two origins: a common garden effect between individuals and a developmental instability within the same individual. Developmental instability may be studied by considering the fluctuating asymmetry (FA) between the two sides of the body. The isofemale line technique is a convenient method for investigating the architecture of natural populations but has been rarely implemented for investigating FA. In this paper, we use this experimental design for analyzing four meristic traits in eight populations of the cosmopolitan Zaprionus indianus. A study of the correlation between left and right side of each line revealed that almost 90% of the variability was due to a developmental noise, while a much higher correlation among the means of the lines from the same population was observed. A slight trend toward a directional asymmetry was observed: more thoracic bristles on the left side. Four kinds of indices, scaled or non-scaled to the mean were used for comparing the different traits. Unscaled values (mean absolute values or standard deviation of each line) revealed a linear increase with the means. Interestingly the results of ovariole number were included in the same regression. With the scaled indices (mean absolute divided by each individual value or stadard deviation devided by the mean), the differences among traits were considerably decreased, but still remained significant. The mean FA of the various traits were not correlated, suggesting that each trait harbors its own developmental stability. The CVs of FA were high with a magnitude similar to those of the trait themselves, slightly less than 10%. Finally, even with the isofemale line design, which is a powerful means for unravelling slight genetic variations, we did not to find any clear indication of a genetic component of FA under the optimal environmental conditions used in this study. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-06-01 2022-04-29T08:45:05Z 2022-04-29T08:45:05Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1007/s10709-017-9966-x Genetica, v. 145, n. 3, p. 307-317, 2017. 1573-6857 0016-6707 http://hdl.handle.net/11449/231398 10.1007/s10709-017-9966-x 2-s2.0-85018476521 |
url |
http://dx.doi.org/10.1007/s10709-017-9966-x http://hdl.handle.net/11449/231398 |
identifier_str_mv |
Genetica, v. 145, n. 3, p. 307-317, 2017. 1573-6857 0016-6707 10.1007/s10709-017-9966-x 2-s2.0-85018476521 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Genetica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
307-317 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129588544405504 |