Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Tipo de documento: | Tese |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/10801 |
Resumo: | Tomato is affected by a large number of arthropod pests, among which the whitefly (Bemisia tabaci) is considered to be one of the most destructive. Arthropod pest management by chemical control is often inefficient. Therefore, tomato breeding programs have been trying to develop resistant cultivars by introgression of resistance present in wild species. In S. galapagense the resistance to whitefly has been associated with the presence of type IV glandular trichomes. Knowledge about the genetic control of type IV glandular trichome densities would facilitate trait introgression. Our research aimed to study the inheritance of type IV glandular trichome densities, their association with resistance to whitefly, and to identify quantitative trait loci (QTL) associated with the presence of these trichomes in populations derived from the interspecific cross Solanum lycopersicum TOM-684 x Solanum galapagense accession LA1401. High estimates for both broad and narrow sense heritabilities of type IV glandular trichome densities suggest that inheritance of this trait is not complex. Whitefly resistance was associated with high density of type IV glandular trichomes. F2 (S. galapagense x S. lycopersicum) progeny selected for high densities of type IV glandular trichomes showed similar levels of resistance to those found in LA1401, considered resistant to whitefly. Two QTLs were detected as associated with type IV trichomes: one major QTL (gal.IV-2), responsible for 35.22% of phenotypic variation, located on chromosome 2, and another minor QTL (gal.IV-3) located on chromosome 3. QTL gal.IV-2 appears to be mainly responsible for the presence of type IV trichomes in S. galapagense. |
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Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401Controle genético da densidade de tricomas glandulares e sua associação com resistência a mosca branca em Solanum galapagenseacesso LA1401)Quantitative trait lociComposite interval mappingMarcadores IndelIndel markersBinomial negativoNegative binomialPoisson inflacionado de zerosZero-inflated PoissonGenéticaTomato is affected by a large number of arthropod pests, among which the whitefly (Bemisia tabaci) is considered to be one of the most destructive. Arthropod pest management by chemical control is often inefficient. Therefore, tomato breeding programs have been trying to develop resistant cultivars by introgression of resistance present in wild species. In S. galapagense the resistance to whitefly has been associated with the presence of type IV glandular trichomes. Knowledge about the genetic control of type IV glandular trichome densities would facilitate trait introgression. Our research aimed to study the inheritance of type IV glandular trichome densities, their association with resistance to whitefly, and to identify quantitative trait loci (QTL) associated with the presence of these trichomes in populations derived from the interspecific cross Solanum lycopersicum TOM-684 x Solanum galapagense accession LA1401. High estimates for both broad and narrow sense heritabilities of type IV glandular trichome densities suggest that inheritance of this trait is not complex. Whitefly resistance was associated with high density of type IV glandular trichomes. F2 (S. galapagense x S. lycopersicum) progeny selected for high densities of type IV glandular trichomes showed similar levels of resistance to those found in LA1401, considered resistant to whitefly. Two QTLs were detected as associated with type IV trichomes: one major QTL (gal.IV-2), responsible for 35.22% of phenotypic variation, located on chromosome 2, and another minor QTL (gal.IV-3) located on chromosome 3. QTL gal.IV-2 appears to be mainly responsible for the presence of type IV trichomes in S. galapagense.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)O tomateiro é atacado por um grande número de artrópodes-pragas, sendo a mosca branca (Bemisia tabaci) considerada uma das mais destrutivas. Devido à ineficiência do controle por meio de produtos químicos, programas de melhoramento tem focado no desenvolvimento de cultivares resistentes por meio de introgressão de resistência proveniente de espécies selvagens. Em S. galapagense a resistência à mosca branca tem sido associada à presença de tricomas glandulares tipo IV. O conhecimento sobre os fatores genéticos envolvidos na presença de tricomas glandulares tipo IV auxiliaria no processo de introgressão gênica. Nosso estudo objetivou estudar a herança da densidade de tricomas glandulares tipo IV, sua associação a resistência à mosca branca e identificar QTL (Quantitative trait loci) associados à presença desses tricomas em populações derivadas do cruzamento interespecífico entre S. lycopersicum TOM-684 x S. galapagense acesso LA1401. Estimativas altas para herdabilidade, tanto no sentido amplo quanto no sentido restrito, para densidade de tricomas glandulares tipo IV, sugerem que esse caráter possui herança relativamente simples. A resistência à mosca branca esteve associada à maior densidade de tricomas glandulares tipo IV. As plantas da população F2 (S. lycopersicum x S. galapagense) selecionadas para maiores densidades de tricomas tipo IV apresentaram o mesmo nível de resistência encontrado no genitor LA1401, considerado resistente à mosca branca. Dois QTLs foram detectados para tricomas tipo IV, um QTL de efeito maior (gal.IV-2), responsável por 35, 22% da variação fenotípica, e localizado no cromossomo 2, e outro QTL de efeito menor (gal.IV-3) localizado no cromossomo 3. O QTL gal.IV-2 aparenta ser o principal responsável pela presença de tricomas tipo IV em S. galapagense.Universidade Federal de LavrasPrograma de Pós-Graduação em Genética e Melhoramento de PlantasUFLAbrasilDepartamento de BiologiaMaluf, Wilson RobertoFrancis, David MerrillBruzi, Adriano TeodoroPinto, César Augusto Brasil PereiraSantos, João Bosco dosAndrade, Marcela Carvalho2016-01-21T15:58:29Z2016-01-21T15:58:29Z2016-01-212015-11-16info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisapplication/pdfANDRADE, M. C. Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401. 2016. 95 p. Tese (Doutorado em Genética e Melhoramento de Plantas)- Universidade Federal de Lavras, Lavras, 2015.http://repositorio.ufla.br/jspui/handle/1/10801enginfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLA2017-02-06T10:40:44Zoai:localhost:1/10801Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2017-02-06T10:40:44Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 Controle genético da densidade de tricomas glandulares e sua associação com resistência a mosca branca em Solanum galapagenseacesso LA1401) |
title |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 |
spellingShingle |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 Andrade, Marcela Carvalho Quantitative trait loci Composite interval mapping Marcadores Indel Indel markers Binomial negativo Negative binomial Poisson inflacionado de zeros Zero-inflated Poisson Genética |
title_short |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 |
title_full |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 |
title_fullStr |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 |
title_full_unstemmed |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 |
title_sort |
Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401 |
author |
Andrade, Marcela Carvalho |
author_facet |
Andrade, Marcela Carvalho |
author_role |
author |
dc.contributor.none.fl_str_mv |
Maluf, Wilson Roberto Francis, David Merrill Bruzi, Adriano Teodoro Pinto, César Augusto Brasil Pereira Santos, João Bosco dos |
dc.contributor.author.fl_str_mv |
Andrade, Marcela Carvalho |
dc.subject.por.fl_str_mv |
Quantitative trait loci Composite interval mapping Marcadores Indel Indel markers Binomial negativo Negative binomial Poisson inflacionado de zeros Zero-inflated Poisson Genética |
topic |
Quantitative trait loci Composite interval mapping Marcadores Indel Indel markers Binomial negativo Negative binomial Poisson inflacionado de zeros Zero-inflated Poisson Genética |
description |
Tomato is affected by a large number of arthropod pests, among which the whitefly (Bemisia tabaci) is considered to be one of the most destructive. Arthropod pest management by chemical control is often inefficient. Therefore, tomato breeding programs have been trying to develop resistant cultivars by introgression of resistance present in wild species. In S. galapagense the resistance to whitefly has been associated with the presence of type IV glandular trichomes. Knowledge about the genetic control of type IV glandular trichome densities would facilitate trait introgression. Our research aimed to study the inheritance of type IV glandular trichome densities, their association with resistance to whitefly, and to identify quantitative trait loci (QTL) associated with the presence of these trichomes in populations derived from the interspecific cross Solanum lycopersicum TOM-684 x Solanum galapagense accession LA1401. High estimates for both broad and narrow sense heritabilities of type IV glandular trichome densities suggest that inheritance of this trait is not complex. Whitefly resistance was associated with high density of type IV glandular trichomes. F2 (S. galapagense x S. lycopersicum) progeny selected for high densities of type IV glandular trichomes showed similar levels of resistance to those found in LA1401, considered resistant to whitefly. Two QTLs were detected as associated with type IV trichomes: one major QTL (gal.IV-2), responsible for 35.22% of phenotypic variation, located on chromosome 2, and another minor QTL (gal.IV-3) located on chromosome 3. QTL gal.IV-2 appears to be mainly responsible for the presence of type IV trichomes in S. galapagense. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-11-16 2016-01-21T15:58:29Z 2016-01-21T15:58:29Z 2016-01-21 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
ANDRADE, M. C. Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401. 2016. 95 p. Tese (Doutorado em Genética e Melhoramento de Plantas)- Universidade Federal de Lavras, Lavras, 2015. http://repositorio.ufla.br/jspui/handle/1/10801 |
identifier_str_mv |
ANDRADE, M. C. Genetic control of glandular trichome densities and their association with whitefly resistance from Solanum galapagense accession LA1401. 2016. 95 p. Tese (Doutorado em Genética e Melhoramento de Plantas)- Universidade Federal de Lavras, Lavras, 2015. |
url |
http://repositorio.ufla.br/jspui/handle/1/10801 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Lavras Programa de Pós-Graduação em Genética e Melhoramento de Plantas UFLA brasil Departamento de Biologia |
publisher.none.fl_str_mv |
Universidade Federal de Lavras Programa de Pós-Graduação em Genética e Melhoramento de Plantas UFLA brasil Departamento de Biologia |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1784550064967909376 |