Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach

Detalhes bibliográficos
Autor(a) principal: Silva,José Osmar da Costa e
Data de Publicação: 2020
Outros Autores: Bruckner,Claudio Horst, Carneiro,Pedro Crescêncio Souza, Resende,Marcos Deon Vilela de, Alves,Rodrigo Silva, Silva,Danielle Fabíola Pereira da
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ciência Rural
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020001000202
Resumo: ABSTRACT: The growing of peach in mild winter regions is made viable through the use of genotypes that have low need for cold conditions, and this is one of the main aims of breeding for these regions. Thus, the aims of this study were to estimate genetic parameters, evaluate genetic variability, and select families adapted to mild winter regions in the S1 generation of peach through mixed model methodology (REML/BLUP). For that purpose, 22 populations, 84 families, and 2090 individuals were evaluated for the following traits: bud burst rate (BR), node density (ND), plant height (PH), and trunk diameter (TD). Genetic variability was found for all the traits. Individual heritability in the broad sense was of low and medium magnitudes. The PH trait had positive genotypic correlation of high magnitude with TD. The ND trait had moderate negative genotypic correlation with PH and TD. Clustering by the Tocher method resulted in the formation of six mutually exclusive groups. Considering selection intensity of 25%, simultaneous selection for BR, ND, and TD led to predicted gains of 11.3% for BR, 9.7% for ND, -14.2% for PH, and -14.3% for TD, showing the great potential of the germplasm evaluated.
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spelling Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peachPrunus persicaREML/BLUPgenotypic correlationfruit tree breedingABSTRACT: The growing of peach in mild winter regions is made viable through the use of genotypes that have low need for cold conditions, and this is one of the main aims of breeding for these regions. Thus, the aims of this study were to estimate genetic parameters, evaluate genetic variability, and select families adapted to mild winter regions in the S1 generation of peach through mixed model methodology (REML/BLUP). For that purpose, 22 populations, 84 families, and 2090 individuals were evaluated for the following traits: bud burst rate (BR), node density (ND), plant height (PH), and trunk diameter (TD). Genetic variability was found for all the traits. Individual heritability in the broad sense was of low and medium magnitudes. The PH trait had positive genotypic correlation of high magnitude with TD. The ND trait had moderate negative genotypic correlation with PH and TD. Clustering by the Tocher method resulted in the formation of six mutually exclusive groups. Considering selection intensity of 25%, simultaneous selection for BR, ND, and TD led to predicted gains of 11.3% for BR, 9.7% for ND, -14.2% for PH, and -14.3% for TD, showing the great potential of the germplasm evaluated.Universidade Federal de Santa Maria2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020001000202Ciência Rural v.50 n.10 2020reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20190976info:eu-repo/semantics/openAccessSilva,José Osmar da Costa eBruckner,Claudio HorstCarneiro,Pedro Crescêncio SouzaResende,Marcos Deon Vilela deAlves,Rodrigo SilvaSilva,Danielle Fabíola Pereira daeng2020-09-21T00:00:00ZRevista
dc.title.none.fl_str_mv Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
title Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
spellingShingle Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
Silva,José Osmar da Costa e
Prunus persica
REML/BLUP
genotypic correlation
fruit tree breeding
title_short Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
title_full Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
title_fullStr Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
title_full_unstemmed Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
title_sort Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
author Silva,José Osmar da Costa e
author_facet Silva,José Osmar da Costa e
Bruckner,Claudio Horst
Carneiro,Pedro Crescêncio Souza
Resende,Marcos Deon Vilela de
Alves,Rodrigo Silva
Silva,Danielle Fabíola Pereira da
author_role author
author2 Bruckner,Claudio Horst
Carneiro,Pedro Crescêncio Souza
Resende,Marcos Deon Vilela de
Alves,Rodrigo Silva
Silva,Danielle Fabíola Pereira da
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Silva,José Osmar da Costa e
Bruckner,Claudio Horst
Carneiro,Pedro Crescêncio Souza
Resende,Marcos Deon Vilela de
Alves,Rodrigo Silva
Silva,Danielle Fabíola Pereira da
dc.subject.por.fl_str_mv Prunus persica
REML/BLUP
genotypic correlation
fruit tree breeding
topic Prunus persica
REML/BLUP
genotypic correlation
fruit tree breeding
description ABSTRACT: The growing of peach in mild winter regions is made viable through the use of genotypes that have low need for cold conditions, and this is one of the main aims of breeding for these regions. Thus, the aims of this study were to estimate genetic parameters, evaluate genetic variability, and select families adapted to mild winter regions in the S1 generation of peach through mixed model methodology (REML/BLUP). For that purpose, 22 populations, 84 families, and 2090 individuals were evaluated for the following traits: bud burst rate (BR), node density (ND), plant height (PH), and trunk diameter (TD). Genetic variability was found for all the traits. Individual heritability in the broad sense was of low and medium magnitudes. The PH trait had positive genotypic correlation of high magnitude with TD. The ND trait had moderate negative genotypic correlation with PH and TD. Clustering by the Tocher method resulted in the formation of six mutually exclusive groups. Considering selection intensity of 25%, simultaneous selection for BR, ND, and TD led to predicted gains of 11.3% for BR, 9.7% for ND, -14.2% for PH, and -14.3% for TD, showing the great potential of the germplasm evaluated.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
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=S0103-84782020001000202
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782020001000202
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0103-8478cr20190976
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 Universidade Federal de Santa Maria
publisher.none.fl_str_mv Universidade Federal de Santa Maria
dc.source.none.fl_str_mv Ciência Rural v.50 n.10 2020
reponame:Ciência Rural
instname:Universidade Federal de Santa Maria (UFSM)
instacron:UFSM
instname_str Universidade Federal de Santa Maria (UFSM)
instacron_str UFSM
institution UFSM
reponame_str Ciência Rural
collection Ciência Rural
repository.name.fl_str_mv
repository.mail.fl_str_mv
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