Estimates of genetic parameters, genetic variability, and selection in the S1 generation of peach
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , |
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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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 |
|
_version_ |
1749140555163500544 |