Phenotypic variation and heritability of heading date in hexaploid oat

Detalhes bibliográficos
Autor(a) principal: Mazurkievicz,Gustavo
Data de Publicação: 2019
Outros Autores: Ubert,Itacir de Pierri, Krause,Felipe Augusto, Nava,Itamar Cristiano
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Crop Breeding and Applied Biotechnology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332019000400436
Resumo: Abstract The onset of flowering is decisive to the reproductive success of plants. The objectives of this study were to characterize the phenotypic variation in heading date and estimate its heritability in segregating populations of oat (Avena sativa L.). F2 and F3 generations of two large populations, derived from crosses ‘URS Taura × Leggett’ and ‘FL0206B-S-B-S1 × UFRGS 078030-1’, were evaluated. A wide phenotypic variation in the number of days to heading was observed in both populations. Heritability coefficients of 0.68 and 0.46 were estimated for the ‘URS Taura × Leggett’ and ‘FL0206B-S-B-S1 × UFRGS 078030-1’ populations. Our results demonstrate that genetic differences derived from parents in response to photoperiod and temperature explain most of the phenotypic variation in heading date of oat populations. Understanding genetic and environmental effects on flowering expression is essential to increase the response to selection for well-adapted and high-yielding oat cultivars.
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spelling Phenotypic variation and heritability of heading date in hexaploid oatAvena sativa L.photoperiodtemperaturevernalizationadaptationAbstract The onset of flowering is decisive to the reproductive success of plants. The objectives of this study were to characterize the phenotypic variation in heading date and estimate its heritability in segregating populations of oat (Avena sativa L.). F2 and F3 generations of two large populations, derived from crosses ‘URS Taura × Leggett’ and ‘FL0206B-S-B-S1 × UFRGS 078030-1’, were evaluated. A wide phenotypic variation in the number of days to heading was observed in both populations. Heritability coefficients of 0.68 and 0.46 were estimated for the ‘URS Taura × Leggett’ and ‘FL0206B-S-B-S1 × UFRGS 078030-1’ populations. Our results demonstrate that genetic differences derived from parents in response to photoperiod and temperature explain most of the phenotypic variation in heading date of oat populations. Understanding genetic and environmental effects on flowering expression is essential to increase the response to selection for well-adapted and high-yielding oat cultivars.Crop Breeding and Applied Biotechnology2019-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332019000400436Crop Breeding and Applied Biotechnology v.19 n.4 2019reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332019v19n4a61info:eu-repo/semantics/openAccessMazurkievicz,GustavoUbert,Itacir de PierriKrause,Felipe AugustoNava,Itamar Cristianoeng2019-12-03T00:00:00Zoai:scielo:S1984-70332019000400436Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2019-12-03T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv Phenotypic variation and heritability of heading date in hexaploid oat
title Phenotypic variation and heritability of heading date in hexaploid oat
spellingShingle Phenotypic variation and heritability of heading date in hexaploid oat
Mazurkievicz,Gustavo
Avena sativa L.
photoperiod
temperature
vernalization
adaptation
title_short Phenotypic variation and heritability of heading date in hexaploid oat
title_full Phenotypic variation and heritability of heading date in hexaploid oat
title_fullStr Phenotypic variation and heritability of heading date in hexaploid oat
title_full_unstemmed Phenotypic variation and heritability of heading date in hexaploid oat
title_sort Phenotypic variation and heritability of heading date in hexaploid oat
author Mazurkievicz,Gustavo
author_facet Mazurkievicz,Gustavo
Ubert,Itacir de Pierri
Krause,Felipe Augusto
Nava,Itamar Cristiano
author_role author
author2 Ubert,Itacir de Pierri
Krause,Felipe Augusto
Nava,Itamar Cristiano
author2_role author
author
author
dc.contributor.author.fl_str_mv Mazurkievicz,Gustavo
Ubert,Itacir de Pierri
Krause,Felipe Augusto
Nava,Itamar Cristiano
dc.subject.por.fl_str_mv Avena sativa L.
photoperiod
temperature
vernalization
adaptation
topic Avena sativa L.
photoperiod
temperature
vernalization
adaptation
description Abstract The onset of flowering is decisive to the reproductive success of plants. The objectives of this study were to characterize the phenotypic variation in heading date and estimate its heritability in segregating populations of oat (Avena sativa L.). F2 and F3 generations of two large populations, derived from crosses ‘URS Taura × Leggett’ and ‘FL0206B-S-B-S1 × UFRGS 078030-1’, were evaluated. A wide phenotypic variation in the number of days to heading was observed in both populations. Heritability coefficients of 0.68 and 0.46 were estimated for the ‘URS Taura × Leggett’ and ‘FL0206B-S-B-S1 × UFRGS 078030-1’ populations. Our results demonstrate that genetic differences derived from parents in response to photoperiod and temperature explain most of the phenotypic variation in heading date of oat populations. Understanding genetic and environmental effects on flowering expression is essential to increase the response to selection for well-adapted and high-yielding oat cultivars.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-01
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=S1984-70332019000400436
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332019000400436
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332019v19n4a61
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 Crop Breeding and Applied Biotechnology
publisher.none.fl_str_mv Crop Breeding and Applied Biotechnology
dc.source.none.fl_str_mv Crop Breeding and Applied Biotechnology v.19 n.4 2019
reponame:Crop Breeding and Applied Biotechnology
instname:Sociedade Brasileira de Melhoramento de Plantas
instacron:CBAB
instname_str Sociedade Brasileira de Melhoramento de Plantas
instacron_str CBAB
institution CBAB
reponame_str Crop Breeding and Applied Biotechnology
collection Crop Breeding and Applied Biotechnology
repository.name.fl_str_mv Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantas
repository.mail.fl_str_mv cbabjournal@gmail.com||cbab@ufv.br
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