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: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/206926
Resumo: 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 Mazurkievicz, GustavoUbert, Itacir de PierriKrause, Felipe AugustoNava, Itamar Cristiano2020-03-25T04:16:59Z20191518-7853http://hdl.handle.net/10183/206926001114191The 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.application/pdfengCrop Breeding and Applied Biotechnology. Viçosa, MG. Vol. 19, n. 4 (out./dez. 2019), p. 436-443Genética vegetalMelhoramento genético vegetalAveiaAvena sativaVariedadeResistência à temperaturaAclimatacaoPhotoperiodTemperatureVernalizationAdaptationPhenotypic variation and heritability of heading date in hexaploid oatinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001114191.pdf.txt001114191.pdf.txtExtracted Texttext/plain32264http://www.lume.ufrgs.br/bitstream/10183/206926/2/001114191.pdf.txt7a4c8eae7aa396e17746bbf1825931e9MD52ORIGINAL001114191.pdfTexto completo (inglês)application/pdf493279http://www.lume.ufrgs.br/bitstream/10183/206926/1/001114191.pdf06100d65c216c6ec34d41da3a7a53022MD5110183/2069262020-03-26 04:20:00.516369oai:www.lume.ufrgs.br:10183/206926Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2020-03-26T07:20Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.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
Genética vegetal
Melhoramento genético vegetal
Aveia
Avena sativa
Variedade
Resistência à temperatura
Aclimatacao
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 Genética vegetal
Melhoramento genético vegetal
Aveia
Avena sativa
Variedade
Resistência à temperatura
Aclimatacao
topic Genética vegetal
Melhoramento genético vegetal
Aveia
Avena sativa
Variedade
Resistência à temperatura
Aclimatacao
Photoperiod
Temperature
Vernalization
Adaptation
dc.subject.eng.fl_str_mv Photoperiod
Temperature
Vernalization
Adaptation
description 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.issued.fl_str_mv 2019
dc.date.accessioned.fl_str_mv 2020-03-25T04:16:59Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/206926
dc.identifier.issn.pt_BR.fl_str_mv 1518-7853
dc.identifier.nrb.pt_BR.fl_str_mv 001114191
identifier_str_mv 1518-7853
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dc.language.iso.fl_str_mv eng
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dc.relation.ispartof.pt_BR.fl_str_mv Crop Breeding and Applied Biotechnology. Viçosa, MG. Vol. 19, n. 4 (out./dez. 2019), p. 436-443
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eu_rights_str_mv openAccess
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reponame_str Repositório Institucional da UFRGS
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