Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae)
Autor(a) principal: | |
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Data de Publicação: | 2003 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical entomology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100025 |
Resumo: | The aim of this work was at calculating allele frequency color polymorphism in a population of sunflower caterpillar, Chlosyne lacinia saundersi (Doubleday) from Londrina, Paraná State, Brazil. Allele frequency in insect populations can be used as genetic marker to compare populations from different geographical and host origins. There are three phenotypes conditioned by two loci interacting epistatically. The phenotypes are: rufa (oranged colored larvae), bicolor (black larvae with dorsal orange stripes) and nigra, larvae with the body entirely black, sometimes with dorsal yellow dots, best seen in the fourth and fifth instars. Samples were taken independently in an attempt to obtain all combinations of crossing among genotypes. The genetic mechanism of this polymorphism is well known. A Chi-Square test (chi2) was used to estimate the ideal sample size. The frequencies stabilized, with over 800 fourth and fifth instars larvae even with increased sample size. The allele frequencies were calculated based on the frequency of each phenotype. The allele R of rufa locus had a frequency near 7.0% and the allele r near 93.0%, the allele B (bicolor) had a frequency around 31.8% and allele b frequency near 68.2%. |
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Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae)Epistasispopulation geneticsecological geneticsphenotypeThe aim of this work was at calculating allele frequency color polymorphism in a population of sunflower caterpillar, Chlosyne lacinia saundersi (Doubleday) from Londrina, Paraná State, Brazil. Allele frequency in insect populations can be used as genetic marker to compare populations from different geographical and host origins. There are three phenotypes conditioned by two loci interacting epistatically. The phenotypes are: rufa (oranged colored larvae), bicolor (black larvae with dorsal orange stripes) and nigra, larvae with the body entirely black, sometimes with dorsal yellow dots, best seen in the fourth and fifth instars. Samples were taken independently in an attempt to obtain all combinations of crossing among genotypes. The genetic mechanism of this polymorphism is well known. A Chi-Square test (chi2) was used to estimate the ideal sample size. The frequencies stabilized, with over 800 fourth and fifth instars larvae even with increased sample size. The allele frequencies were calculated based on the frequency of each phenotype. The allele R of rufa locus had a frequency near 7.0% and the allele r near 93.0%, the allele B (bicolor) had a frequency around 31.8% and allele b frequency near 68.2%.Sociedade Entomológica do Brasil2003-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100025Neotropical Entomology v.32 n.1 2003reponame:Neotropical entomology (Online)instname:Sociedade Entomológica do Brasil (SEB)instacron:SEB10.1590/S1519-566X2003000100025info:eu-repo/semantics/openAccessLopes-da-Silva,MarceloCasagrande,Mirna M.eng2003-06-04T00:00:00Zoai:scielo:S1519-566X2003000100025Revistahttp://www.scielo.br/neONGhttps://old.scielo.br/oai/scielo-oai.php||editor@seb.org.br1678-80521519-566Xopendoar:2003-06-04T00:00Neotropical entomology (Online) - Sociedade Entomológica do Brasil (SEB)false |
dc.title.none.fl_str_mv |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) |
title |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) |
spellingShingle |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) Lopes-da-Silva,Marcelo Epistasis population genetics ecological genetics phenotype |
title_short |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) |
title_full |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) |
title_fullStr |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) |
title_full_unstemmed |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) |
title_sort |
Color polymorphism and allele frequency in a Brazilian population of the sunflower caterpillar Chlosyne lacinia saundersi (Doubleday) (Lepidoptera: Nymphalidae) |
author |
Lopes-da-Silva,Marcelo |
author_facet |
Lopes-da-Silva,Marcelo Casagrande,Mirna M. |
author_role |
author |
author2 |
Casagrande,Mirna M. |
author2_role |
author |
dc.contributor.author.fl_str_mv |
Lopes-da-Silva,Marcelo Casagrande,Mirna M. |
dc.subject.por.fl_str_mv |
Epistasis population genetics ecological genetics phenotype |
topic |
Epistasis population genetics ecological genetics phenotype |
description |
The aim of this work was at calculating allele frequency color polymorphism in a population of sunflower caterpillar, Chlosyne lacinia saundersi (Doubleday) from Londrina, Paraná State, Brazil. Allele frequency in insect populations can be used as genetic marker to compare populations from different geographical and host origins. There are three phenotypes conditioned by two loci interacting epistatically. The phenotypes are: rufa (oranged colored larvae), bicolor (black larvae with dorsal orange stripes) and nigra, larvae with the body entirely black, sometimes with dorsal yellow dots, best seen in the fourth and fifth instars. Samples were taken independently in an attempt to obtain all combinations of crossing among genotypes. The genetic mechanism of this polymorphism is well known. A Chi-Square test (chi2) was used to estimate the ideal sample size. The frequencies stabilized, with over 800 fourth and fifth instars larvae even with increased sample size. The allele frequencies were calculated based on the frequency of each phenotype. The allele R of rufa locus had a frequency near 7.0% and the allele r near 93.0%, the allele B (bicolor) had a frequency around 31.8% and allele b frequency near 68.2%. |
publishDate |
2003 |
dc.date.none.fl_str_mv |
2003-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100025 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2003000100025 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1519-566X2003000100025 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Entomológica do Brasil |
publisher.none.fl_str_mv |
Sociedade Entomológica do Brasil |
dc.source.none.fl_str_mv |
Neotropical Entomology v.32 n.1 2003 reponame:Neotropical entomology (Online) instname:Sociedade Entomológica do Brasil (SEB) instacron:SEB |
instname_str |
Sociedade Entomológica do Brasil (SEB) |
instacron_str |
SEB |
institution |
SEB |
reponame_str |
Neotropical entomology (Online) |
collection |
Neotropical entomology (Online) |
repository.name.fl_str_mv |
Neotropical entomology (Online) - Sociedade Entomológica do Brasil (SEB) |
repository.mail.fl_str_mv |
||editor@seb.org.br |
_version_ |
1754820844213764096 |