Relationship between grain colour and preharvest sprouting-resistance in wheat

Detalhes bibliográficos
Autor(a) principal: Bassoi, Manoel Carlos
Data de Publicação: 2005
Outros Autores: Flintham, John
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Pesquisa Agropecuária Brasileira (Online)
Texto Completo: https://seer.sct.embrapa.br/index.php/pab/article/view/7054
Resumo: Since red alleles (R) of the genes that control grain colour are important for the improvement of preharvest sprouting resistance in wheat and there are three independently inherited loci, on chromosomes 3A, 3B and 3D of hexaploid wheat, it is possible to vary the dosage of dominant alleles in a breeding program. The objective of this work was to evaluate the dosage effect of R genes on preharvest sprouting, in a single seed descent population, named TRL, derived from the cross between Timgalen, white-grained wheat, and RL 4137, red-grained wheat. The study was carried out using sprouting data in ripe ears obtained under artificial conditions in a rainfall simulator over three years. According to the results there is a significant effect on preharvest sprouting provided by colour and a weaker effect of increasing R dosage. However, the significant residual genotypic variation between red lines and all lines (reds and whites) at 0.1% level showed that preharvest sprouting was also controlled by other genes. There are no significant correlations between sprouting and date of ripeness or between ripeness, R dosage and colour intensity.
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spelling Relationship between grain colour and preharvest sprouting-resistance in wheatRelação entre cor de grão e resistência à germinação pré-colheita em trigoTriticum aestivum; gene; allele; dormancy; dosage effectTriticum aestivum; gene; alelo; dormência; efeito de dosagem Since red alleles (R) of the genes that control grain colour are important for the improvement of preharvest sprouting resistance in wheat and there are three independently inherited loci, on chromosomes 3A, 3B and 3D of hexaploid wheat, it is possible to vary the dosage of dominant alleles in a breeding program. The objective of this work was to evaluate the dosage effect of R genes on preharvest sprouting, in a single seed descent population, named TRL, derived from the cross between Timgalen, white-grained wheat, and RL 4137, red-grained wheat. The study was carried out using sprouting data in ripe ears obtained under artificial conditions in a rainfall simulator over three years. According to the results there is a significant effect on preharvest sprouting provided by colour and a weaker effect of increasing R dosage. However, the significant residual genotypic variation between red lines and all lines (reds and whites) at 0.1% level showed that preharvest sprouting was also controlled by other genes. There are no significant correlations between sprouting and date of ripeness or between ripeness, R dosage and colour intensity.Uma vez que os alelos dominantes para cor vermelha (R), dos genes que controlam a cor do grão, têm importância no incremento da resistência à germinação pré-colheita, em trigo, e há três locos herdados independentemente, nos cromossomos 3A, 3B e 3D do trigo hexaplóide, é possível variar sua dosagem em um programa de melhoramento. O objetivo deste trabalho foi avaliar o efeito de dosagem dos genes R na germinação pré-colheita, em uma população de descendência por semente única, batizada de TRL, derivada do cruzamento entre Timgalen, trigo de grão branco, e RL 4137, trigo de grão vermelho. O estudo utilizou dados de germinação em espigas maduras, obtidos sob condições artificiais em um simulador de chuva, em três anos. De acordo com os resultados, o efeito da cor de grão e, menos acentuadamente, da dosagem dos alelos dominantes, sobre a germinação pré-colheita foi significativo. Entretanto, a variação genotípica residual, entre as linhas vermelhas e entre as linhas vermelhas e brancas, significativa a 0,1%, mostra que a germinação pré-colheita é também controlada por outros genes. Não foi constatada correlação significativa entre germinação na espiga e data de maturação ou entre maturação, dosagem de R e intensidade de cor.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraBassoi, Manoel CarlosFlintham, John2005-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7054Pesquisa Agropecuaria Brasileira; v.40, n.10, out. 2005; 981-988Pesquisa Agropecuária Brasileira; v.40, n.10, out. 2005; 981-9881678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/7054/4102info:eu-repo/semantics/openAccess2014-09-19T18:57:52Zoai:ojs.seer.sct.embrapa.br:article/7054Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2014-09-19T18:57:52Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false
dc.title.none.fl_str_mv Relationship between grain colour and preharvest sprouting-resistance in wheat
Relação entre cor de grão e resistência à germinação pré-colheita em trigo
title Relationship between grain colour and preharvest sprouting-resistance in wheat
spellingShingle Relationship between grain colour and preharvest sprouting-resistance in wheat
Bassoi, Manoel Carlos
Triticum aestivum; gene; allele; dormancy; dosage effect
Triticum aestivum; gene; alelo; dormência; efeito de dosagem
title_short Relationship between grain colour and preharvest sprouting-resistance in wheat
title_full Relationship between grain colour and preharvest sprouting-resistance in wheat
title_fullStr Relationship between grain colour and preharvest sprouting-resistance in wheat
title_full_unstemmed Relationship between grain colour and preharvest sprouting-resistance in wheat
title_sort Relationship between grain colour and preharvest sprouting-resistance in wheat
author Bassoi, Manoel Carlos
author_facet Bassoi, Manoel Carlos
Flintham, John
author_role author
author2 Flintham, John
author2_role author
dc.contributor.none.fl_str_mv

dc.contributor.author.fl_str_mv Bassoi, Manoel Carlos
Flintham, John
dc.subject.por.fl_str_mv Triticum aestivum; gene; allele; dormancy; dosage effect
Triticum aestivum; gene; alelo; dormência; efeito de dosagem
topic Triticum aestivum; gene; allele; dormancy; dosage effect
Triticum aestivum; gene; alelo; dormência; efeito de dosagem
description Since red alleles (R) of the genes that control grain colour are important for the improvement of preharvest sprouting resistance in wheat and there are three independently inherited loci, on chromosomes 3A, 3B and 3D of hexaploid wheat, it is possible to vary the dosage of dominant alleles in a breeding program. The objective of this work was to evaluate the dosage effect of R genes on preharvest sprouting, in a single seed descent population, named TRL, derived from the cross between Timgalen, white-grained wheat, and RL 4137, red-grained wheat. The study was carried out using sprouting data in ripe ears obtained under artificial conditions in a rainfall simulator over three years. According to the results there is a significant effect on preharvest sprouting provided by colour and a weaker effect of increasing R dosage. However, the significant residual genotypic variation between red lines and all lines (reds and whites) at 0.1% level showed that preharvest sprouting was also controlled by other genes. There are no significant correlations between sprouting and date of ripeness or between ripeness, R dosage and colour intensity.
publishDate 2005
dc.date.none.fl_str_mv 2005-10-01
dc.type.none.fl_str_mv
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7054
url https://seer.sct.embrapa.br/index.php/pab/article/view/7054
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://seer.sct.embrapa.br/index.php/pab/article/view/7054/4102
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
publisher.none.fl_str_mv Pesquisa Agropecuaria Brasileira
Pesquisa Agropecuária Brasileira
dc.source.none.fl_str_mv Pesquisa Agropecuaria Brasileira; v.40, n.10, out. 2005; 981-988
Pesquisa Agropecuária Brasileira; v.40, n.10, out. 2005; 981-988
1678-3921
0100-104x
reponame:Pesquisa Agropecuária Brasileira (Online)
instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron:EMBRAPA
instname_str Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
instacron_str EMBRAPA
institution EMBRAPA
reponame_str Pesquisa Agropecuária Brasileira (Online)
collection Pesquisa Agropecuária Brasileira (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)
repository.mail.fl_str_mv pab@sct.embrapa.br || sct.pab@embrapa.br
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