Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses

Detalhes bibliográficos
Autor(a) principal: Costa,Nayana Valéria
Data de Publicação: 2022
Outros Autores: Cascão,Luma Mariano, Santana,Priscilla Neves, Guedes,Márcio Lisboa, Resende,Marcela Pedroso Mendes, Chaves,Lázaro José
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=S1984-70332022000300206
Resumo: Abstract Topcrosses are routinely used in maize-hybrid programs. This study aimed to evaluate heterosis components and combining ability to predict hybrid means between synthetics from two groups of S1 maize lines using the intergroup topcrosses model that includes S2 lines. Two groups, each with 30 S1 maize lines, were crossed using an intergroup topcross system, with a mixture of lines from one group as a tester for the contrasting group. Simultaneously, 30 S2 lines from each group were generated via self-pollination. Lines and topcrosses were experimentally evaluated and the data were analyzed using a model adapted to the study design. The results showed the suitability of the proposed model for studying heterosis components and general combining ability, detailing additive and dominance effects. Prediction of hybrid means between synthetics showed the potential of the lines to generate base populations for an interpopulation breeding program.
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spelling Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrossesTestcrossdiallel crossinginbreeding depressionheterosiscombining abilityAbstract Topcrosses are routinely used in maize-hybrid programs. This study aimed to evaluate heterosis components and combining ability to predict hybrid means between synthetics from two groups of S1 maize lines using the intergroup topcrosses model that includes S2 lines. Two groups, each with 30 S1 maize lines, were crossed using an intergroup topcross system, with a mixture of lines from one group as a tester for the contrasting group. Simultaneously, 30 S2 lines from each group were generated via self-pollination. Lines and topcrosses were experimentally evaluated and the data were analyzed using a model adapted to the study design. The results showed the suitability of the proposed model for studying heterosis components and general combining ability, detailing additive and dominance effects. Prediction of hybrid means between synthetics showed the potential of the lines to generate base populations for an interpopulation breeding program.Crop Breeding and Applied Biotechnology2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332022000300206Crop Breeding and Applied Biotechnology v.22 n.3 2022reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332022v22n3a34info:eu-repo/semantics/openAccessCosta,Nayana ValériaCascão,Luma MarianoSantana,Priscilla NevesGuedes,Márcio LisboaResende,Marcela Pedroso MendesChaves,Lázaro Joséeng2022-10-24T00:00:00Zoai:scielo:S1984-70332022000300206Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2022-10-24T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
title Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
spellingShingle Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
Costa,Nayana Valéria
Testcross
diallel crossing
inbreeding depression
heterosis
combining ability
title_short Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
title_full Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
title_fullStr Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
title_full_unstemmed Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
title_sort Selection of maize lines and prediction of hybrid and synthetic means using intergroup topcrosses
author Costa,Nayana Valéria
author_facet Costa,Nayana Valéria
Cascão,Luma Mariano
Santana,Priscilla Neves
Guedes,Márcio Lisboa
Resende,Marcela Pedroso Mendes
Chaves,Lázaro José
author_role author
author2 Cascão,Luma Mariano
Santana,Priscilla Neves
Guedes,Márcio Lisboa
Resende,Marcela Pedroso Mendes
Chaves,Lázaro José
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Costa,Nayana Valéria
Cascão,Luma Mariano
Santana,Priscilla Neves
Guedes,Márcio Lisboa
Resende,Marcela Pedroso Mendes
Chaves,Lázaro José
dc.subject.por.fl_str_mv Testcross
diallel crossing
inbreeding depression
heterosis
combining ability
topic Testcross
diallel crossing
inbreeding depression
heterosis
combining ability
description Abstract Topcrosses are routinely used in maize-hybrid programs. This study aimed to evaluate heterosis components and combining ability to predict hybrid means between synthetics from two groups of S1 maize lines using the intergroup topcrosses model that includes S2 lines. Two groups, each with 30 S1 maize lines, were crossed using an intergroup topcross system, with a mixture of lines from one group as a tester for the contrasting group. Simultaneously, 30 S2 lines from each group were generated via self-pollination. Lines and topcrosses were experimentally evaluated and the data were analyzed using a model adapted to the study design. The results showed the suitability of the proposed model for studying heterosis components and general combining ability, detailing additive and dominance effects. Prediction of hybrid means between synthetics showed the potential of the lines to generate base populations for an interpopulation breeding program.
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=S1984-70332022000300206
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332022000300206
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332022v22n3a34
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.22 n.3 2022
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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