Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae
Autor(a) principal: | |
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Data de Publicação: | 1998 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Genetics and Molecular Biology |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000200001 |
Resumo: | Chitinolytic activity and dry mass production were determined in culture filtrates from 17 Metarhizium anisopliae strains grown in liquid medium containing chitin as the only carbon source. The objectives were to estimate parameters such as genetic variance among strains, heritability and expected gain from selection, as well as correlations between tested traits. Wide genotypic variability was observed among strains in chitinolytic activity, permitting the exploitation of this property in selection. The high heritability suggests that progress can be made through phenotypic selection. The genotypic correlation coefficient between dry mass production and chitinolytic activity detected in the filtrates was negative (<img src="http:/img/fbpe/gmb/v21n2/pg171-1.jpg" alt="wpe1.jpg (777 bytes)" align="absmiddle">= - 0.588). One of the isolates was also investigated for variation in the two traits as a function of culture growth time. The results showed an increase in enzyme activity up to the 8th (and last) day of the experiment and a decrease in dry mass from the 4th day on. |
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Genetics and Molecular Biology |
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Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliaeChitinolytic activity and dry mass production were determined in culture filtrates from 17 Metarhizium anisopliae strains grown in liquid medium containing chitin as the only carbon source. The objectives were to estimate parameters such as genetic variance among strains, heritability and expected gain from selection, as well as correlations between tested traits. Wide genotypic variability was observed among strains in chitinolytic activity, permitting the exploitation of this property in selection. The high heritability suggests that progress can be made through phenotypic selection. The genotypic correlation coefficient between dry mass production and chitinolytic activity detected in the filtrates was negative (<img src="http:/img/fbpe/gmb/v21n2/pg171-1.jpg" alt="wpe1.jpg (777 bytes)" align="absmiddle">= - 0.588). One of the isolates was also investigated for variation in the two traits as a function of culture growth time. The results showed an increase in enzyme activity up to the 8th (and last) day of the experiment and a decrease in dry mass from the 4th day on.Sociedade Brasileira de Genética1998-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000200001Genetics and Molecular Biology v.21 n.2 1998reponame:Genetics and Molecular Biologyinstname:Sociedade Brasileira de Genética (SBG)instacron:SBG10.1590/S1415-47571998000200001info:eu-repo/semantics/openAccessBraga,Gilberto U.L.Vencovsky,RolandMessias,Claudio L.eng1999-01-06T00:00:00Zoai:scielo:S1415-47571998000200001Revistahttp://www.gmb.org.br/ONGhttps://old.scielo.br/oai/scielo-oai.php||editor@gmb.org.br1678-46851415-4757opendoar:1999-01-06T00:00Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG)false |
dc.title.none.fl_str_mv |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae |
title |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae |
spellingShingle |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae Braga,Gilberto U.L. |
title_short |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae |
title_full |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae |
title_fullStr |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae |
title_full_unstemmed |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae |
title_sort |
Estimates of genetic parameters related to chitinase production by the entomopathogenic fungus Metarhizium anisopliae |
author |
Braga,Gilberto U.L. |
author_facet |
Braga,Gilberto U.L. Vencovsky,Roland Messias,Claudio L. |
author_role |
author |
author2 |
Vencovsky,Roland Messias,Claudio L. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Braga,Gilberto U.L. Vencovsky,Roland Messias,Claudio L. |
description |
Chitinolytic activity and dry mass production were determined in culture filtrates from 17 Metarhizium anisopliae strains grown in liquid medium containing chitin as the only carbon source. The objectives were to estimate parameters such as genetic variance among strains, heritability and expected gain from selection, as well as correlations between tested traits. Wide genotypic variability was observed among strains in chitinolytic activity, permitting the exploitation of this property in selection. The high heritability suggests that progress can be made through phenotypic selection. The genotypic correlation coefficient between dry mass production and chitinolytic activity detected in the filtrates was negative (<img src="http:/img/fbpe/gmb/v21n2/pg171-1.jpg" alt="wpe1.jpg (777 bytes)" align="absmiddle">= - 0.588). One of the isolates was also investigated for variation in the two traits as a function of culture growth time. The results showed an increase in enzyme activity up to the 8th (and last) day of the experiment and a decrease in dry mass from the 4th day on. |
publishDate |
1998 |
dc.date.none.fl_str_mv |
1998-06-01 |
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=S1415-47571998000200001 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000200001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1415-47571998000200001 |
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 Brasileira de Genética |
publisher.none.fl_str_mv |
Sociedade Brasileira de Genética |
dc.source.none.fl_str_mv |
Genetics and Molecular Biology v.21 n.2 1998 reponame:Genetics and Molecular Biology instname:Sociedade Brasileira de Genética (SBG) instacron:SBG |
instname_str |
Sociedade Brasileira de Genética (SBG) |
instacron_str |
SBG |
institution |
SBG |
reponame_str |
Genetics and Molecular Biology |
collection |
Genetics and Molecular Biology |
repository.name.fl_str_mv |
Genetics and Molecular Biology - Sociedade Brasileira de Genética (SBG) |
repository.mail.fl_str_mv |
||editor@gmb.org.br |
_version_ |
1752122376988917760 |