Genetic divergence among processing tomato hybrids and formation of new segregating populations

Detalhes bibliográficos
Autor(a) principal: Figueiredo,Alex Sandro Torre
Data de Publicação: 2017
Outros Autores: Resende,Juliano Tadeu Vilela de, Schwarz,Kélin, Marodin,Josué Clock, Galvão,Alexandre Gonçalves, Resende,Nathalia Campos Vilela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência e Agrotecnologia (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300279
Resumo: ABSTRACT Tomato is the most important vegetable species and has a strong bottleneck effect in its domestication and evolution. In exploring the existing genetic variability in commercial germplasm, germplasm has been proven to be an excellent alternative to obtain inbred lines in order to provide superior new hybrids in the future. In this sense, the objective of this study was to estimate the genetic distance among commercial processing tomato hybrids via agronomical and quality postharvest fruit traits with the aim of suggesting promising crosses for the formation of base populations for tomato breeding. Ten hybrids of processing tomato were evaluated in a complete randomized block design with three replicates. In total, eleven agronomic and postharvest fruit quality traits were evaluated. The genetic distances were estimated between the hybrids using the generalized Mahalanobis () and Gower () distances. The genetic distance among tomato hybrids was determined using a graphic projection of the first two canonical variables. The presence of significant genetic variability among the hybrids (P <0.05) was demonstrated and was sufficient for the selection of the best hybrids before the breeding process. The hybrid Laura stood out for its postharvest characteristics and was the most divergent genotype compared to the others evaluated. The most promising crossings for the formation of segregating populations with superior genetic merit are Kátia x Laura, Vênus x Laura, Fascínio x Laura, AP-533 x Laura, Tinto x Laura, AP-529 x Laura, Supera x Laura, Granadero x Laura, Granadero x AP533, Granadero x Ap529 and Granadero x Kátia.
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spelling Genetic divergence among processing tomato hybrids and formation of new segregating populationsSolanum lycopersicumgenetic distancepre-breedingbreeding populationstransgressive segregateABSTRACT Tomato is the most important vegetable species and has a strong bottleneck effect in its domestication and evolution. In exploring the existing genetic variability in commercial germplasm, germplasm has been proven to be an excellent alternative to obtain inbred lines in order to provide superior new hybrids in the future. In this sense, the objective of this study was to estimate the genetic distance among commercial processing tomato hybrids via agronomical and quality postharvest fruit traits with the aim of suggesting promising crosses for the formation of base populations for tomato breeding. Ten hybrids of processing tomato were evaluated in a complete randomized block design with three replicates. In total, eleven agronomic and postharvest fruit quality traits were evaluated. The genetic distances were estimated between the hybrids using the generalized Mahalanobis () and Gower () distances. The genetic distance among tomato hybrids was determined using a graphic projection of the first two canonical variables. The presence of significant genetic variability among the hybrids (P <0.05) was demonstrated and was sufficient for the selection of the best hybrids before the breeding process. The hybrid Laura stood out for its postharvest characteristics and was the most divergent genotype compared to the others evaluated. The most promising crossings for the formation of segregating populations with superior genetic merit are Kátia x Laura, Vênus x Laura, Fascínio x Laura, AP-533 x Laura, Tinto x Laura, AP-529 x Laura, Supera x Laura, Granadero x Laura, Granadero x AP533, Granadero x Ap529 and Granadero x Kátia.Editora da UFLA2017-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300279Ciência e Agrotecnologia v.41 n.3 2017reponame:Ciência e Agrotecnologia (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLA10.1590/1413-70542017413033016info:eu-repo/semantics/openAccessFigueiredo,Alex Sandro TorreResende,Juliano Tadeu Vilela deSchwarz,KélinMarodin,Josué ClockGalvão,Alexandre GonçalvesResende,Nathalia Campos Vilelaeng2017-07-13T00:00:00Zoai:scielo:S1413-70542017000300279Revistahttp://www.scielo.br/cagroPUBhttps://old.scielo.br/oai/scielo-oai.php||renpaiva@dbi.ufla.br|| editora@editora.ufla.br1981-18291413-7054opendoar:2022-11-22T16:31:31.537135Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)true
dc.title.none.fl_str_mv Genetic divergence among processing tomato hybrids and formation of new segregating populations
title Genetic divergence among processing tomato hybrids and formation of new segregating populations
spellingShingle Genetic divergence among processing tomato hybrids and formation of new segregating populations
Figueiredo,Alex Sandro Torre
Solanum lycopersicum
genetic distance
pre-breeding
breeding populations
transgressive segregate
title_short Genetic divergence among processing tomato hybrids and formation of new segregating populations
title_full Genetic divergence among processing tomato hybrids and formation of new segregating populations
title_fullStr Genetic divergence among processing tomato hybrids and formation of new segregating populations
title_full_unstemmed Genetic divergence among processing tomato hybrids and formation of new segregating populations
title_sort Genetic divergence among processing tomato hybrids and formation of new segregating populations
author Figueiredo,Alex Sandro Torre
author_facet Figueiredo,Alex Sandro Torre
Resende,Juliano Tadeu Vilela de
Schwarz,Kélin
Marodin,Josué Clock
Galvão,Alexandre Gonçalves
Resende,Nathalia Campos Vilela
author_role author
author2 Resende,Juliano Tadeu Vilela de
Schwarz,Kélin
Marodin,Josué Clock
Galvão,Alexandre Gonçalves
Resende,Nathalia Campos Vilela
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Figueiredo,Alex Sandro Torre
Resende,Juliano Tadeu Vilela de
Schwarz,Kélin
Marodin,Josué Clock
Galvão,Alexandre Gonçalves
Resende,Nathalia Campos Vilela
dc.subject.por.fl_str_mv Solanum lycopersicum
genetic distance
pre-breeding
breeding populations
transgressive segregate
topic Solanum lycopersicum
genetic distance
pre-breeding
breeding populations
transgressive segregate
description ABSTRACT Tomato is the most important vegetable species and has a strong bottleneck effect in its domestication and evolution. In exploring the existing genetic variability in commercial germplasm, germplasm has been proven to be an excellent alternative to obtain inbred lines in order to provide superior new hybrids in the future. In this sense, the objective of this study was to estimate the genetic distance among commercial processing tomato hybrids via agronomical and quality postharvest fruit traits with the aim of suggesting promising crosses for the formation of base populations for tomato breeding. Ten hybrids of processing tomato were evaluated in a complete randomized block design with three replicates. In total, eleven agronomic and postharvest fruit quality traits were evaluated. The genetic distances were estimated between the hybrids using the generalized Mahalanobis () and Gower () distances. The genetic distance among tomato hybrids was determined using a graphic projection of the first two canonical variables. The presence of significant genetic variability among the hybrids (P <0.05) was demonstrated and was sufficient for the selection of the best hybrids before the breeding process. The hybrid Laura stood out for its postharvest characteristics and was the most divergent genotype compared to the others evaluated. The most promising crossings for the formation of segregating populations with superior genetic merit are Kátia x Laura, Vênus x Laura, Fascínio x Laura, AP-533 x Laura, Tinto x Laura, AP-529 x Laura, Supera x Laura, Granadero x Laura, Granadero x AP533, Granadero x Ap529 and Granadero x Kátia.
publishDate 2017
dc.date.none.fl_str_mv 2017-06-01
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=S1413-70542017000300279
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542017000300279
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1413-70542017413033016
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 Editora da UFLA
publisher.none.fl_str_mv Editora da UFLA
dc.source.none.fl_str_mv Ciência e Agrotecnologia v.41 n.3 2017
reponame:Ciência e Agrotecnologia (Online)
instname:Universidade Federal de Lavras (UFLA)
instacron:UFLA
instname_str Universidade Federal de Lavras (UFLA)
instacron_str UFLA
institution UFLA
reponame_str Ciência e Agrotecnologia (Online)
collection Ciência e Agrotecnologia (Online)
repository.name.fl_str_mv Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)
repository.mail.fl_str_mv ||renpaiva@dbi.ufla.br|| editora@editora.ufla.br
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