Genome–wide association mapping for heading date in oats under subtropical environments
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000301101 |
Resumo: | ABSTRACT: Selection for heading date has been a decisive factor to increase areas cropped with oats in Brazil. Although important to oat breeders, genomic regions controlling heading date have not been completely identified. The objective of this study was to identify genomic regions controlling oat heading date in subtropical environments. A set of 412 oat genotypes, developed from 1974 to 2015, was assessed for heading date in contrasting environments and genotyped using genotyping–by–sequencing (GBS). Phenotypic and genotypic data were used in single and multi–environment association models. Quantitative trait loci (QTL) associated to heading date were identified on oat consensus groups Mrg02, Mrg05, Mrg06, Mrg12, and Mrg21. Some of the findings confirmed the association of genomic regions with heading date, while others emerge as new candidate regions associated to the trait. The genomic regions identified on Mrg02 and Mrg12 were associated to Vernalization 3 (Vrn3), while the genomic region identified on Mrg21 is associated with Vernalization 1 (Vrn1). The Vrn1 region was detected in Londrina, an environment with reduced vernalization condition, and in the multi–environment model. The results reveal that some genotypes of the panel are responsive to vernalization, increasing the days to heading without this environmental stimulus. Our results provide important contribution for a better understanding of heading date in subtropical environments and a strong basis for marker–assisted selection in oats. |
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Genome–wide association mapping for heading date in oats under subtropical environmentsAvena sativa Lflowering timemarker–assisted selectionquantitative trait lociABSTRACT: Selection for heading date has been a decisive factor to increase areas cropped with oats in Brazil. Although important to oat breeders, genomic regions controlling heading date have not been completely identified. The objective of this study was to identify genomic regions controlling oat heading date in subtropical environments. A set of 412 oat genotypes, developed from 1974 to 2015, was assessed for heading date in contrasting environments and genotyped using genotyping–by–sequencing (GBS). Phenotypic and genotypic data were used in single and multi–environment association models. Quantitative trait loci (QTL) associated to heading date were identified on oat consensus groups Mrg02, Mrg05, Mrg06, Mrg12, and Mrg21. Some of the findings confirmed the association of genomic regions with heading date, while others emerge as new candidate regions associated to the trait. The genomic regions identified on Mrg02 and Mrg12 were associated to Vernalization 3 (Vrn3), while the genomic region identified on Mrg21 is associated with Vernalization 1 (Vrn1). The Vrn1 region was detected in Londrina, an environment with reduced vernalization condition, and in the multi–environment model. The results reveal that some genotypes of the panel are responsive to vernalization, increasing the days to heading without this environmental stimulus. Our results provide important contribution for a better understanding of heading date in subtropical environments and a strong basis for marker–assisted selection in oats.Escola Superior de Agricultura "Luiz de Queiroz"2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000301101Scientia Agricola v.79 n.3 2022reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2020-0355info:eu-repo/semantics/openAccessZimmer,Cristiano MathiasOliveira,GuilhermeArruda,Klever Márcio AntunesPacheco,Marcelo TeixeiraFederizzi,Luiz Carloseng2021-06-10T00:00:00Zoai:scielo:S0103-90162022000301101Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2021-06-10T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Genome–wide association mapping for heading date in oats under subtropical environments |
title |
Genome–wide association mapping for heading date in oats under subtropical environments |
spellingShingle |
Genome–wide association mapping for heading date in oats under subtropical environments Zimmer,Cristiano Mathias Avena sativa L flowering time marker–assisted selection quantitative trait loci |
title_short |
Genome–wide association mapping for heading date in oats under subtropical environments |
title_full |
Genome–wide association mapping for heading date in oats under subtropical environments |
title_fullStr |
Genome–wide association mapping for heading date in oats under subtropical environments |
title_full_unstemmed |
Genome–wide association mapping for heading date in oats under subtropical environments |
title_sort |
Genome–wide association mapping for heading date in oats under subtropical environments |
author |
Zimmer,Cristiano Mathias |
author_facet |
Zimmer,Cristiano Mathias Oliveira,Guilherme Arruda,Klever Márcio Antunes Pacheco,Marcelo Teixeira Federizzi,Luiz Carlos |
author_role |
author |
author2 |
Oliveira,Guilherme Arruda,Klever Márcio Antunes Pacheco,Marcelo Teixeira Federizzi,Luiz Carlos |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Zimmer,Cristiano Mathias Oliveira,Guilherme Arruda,Klever Márcio Antunes Pacheco,Marcelo Teixeira Federizzi,Luiz Carlos |
dc.subject.por.fl_str_mv |
Avena sativa L flowering time marker–assisted selection quantitative trait loci |
topic |
Avena sativa L flowering time marker–assisted selection quantitative trait loci |
description |
ABSTRACT: Selection for heading date has been a decisive factor to increase areas cropped with oats in Brazil. Although important to oat breeders, genomic regions controlling heading date have not been completely identified. The objective of this study was to identify genomic regions controlling oat heading date in subtropical environments. A set of 412 oat genotypes, developed from 1974 to 2015, was assessed for heading date in contrasting environments and genotyped using genotyping–by–sequencing (GBS). Phenotypic and genotypic data were used in single and multi–environment association models. Quantitative trait loci (QTL) associated to heading date were identified on oat consensus groups Mrg02, Mrg05, Mrg06, Mrg12, and Mrg21. Some of the findings confirmed the association of genomic regions with heading date, while others emerge as new candidate regions associated to the trait. The genomic regions identified on Mrg02 and Mrg12 were associated to Vernalization 3 (Vrn3), while the genomic region identified on Mrg21 is associated with Vernalization 1 (Vrn1). The Vrn1 region was detected in Londrina, an environment with reduced vernalization condition, and in the multi–environment model. The results reveal that some genotypes of the panel are responsive to vernalization, increasing the days to heading without this environmental stimulus. Our results provide important contribution for a better understanding of heading date in subtropical environments and a strong basis for marker–assisted selection in oats. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 |
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=S0103-90162022000301101 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162022000301101 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-992x-2020-0355 |
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 |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.79 n.3 2022 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936466053988352 |