Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens

Detalhes bibliográficos
Autor(a) principal: Matias,Filipe Inácio
Data de Publicação: 2020
Outros Autores: Valle,Cacilda Borges do, Gouveia,Beatriz Tomé, Moro,Gustavo Vitti, Barrios,Sanzio Carvalho Lima
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=S1984-70332020000200202
Resumo: Abstract The selection of sexual genitors in Urochloa decumbens breeding is dependent upon the performance of their progeny simultaneously for several traits. Thus, our objectives were to (i) compare the efficiency of indices to select genitors of U. decumbens, (ii) evaluate the genetic gains obtained through selection intensities, and (iii) evaluate the multivariate pattern of progenies through principal components analysis (PCA). For this purpose, 1415 hybrids from 75 progenies of full siblings were evaluated at Embrapa Beef Cattle (Brazil) using seven cuts for dry matter production, regrowth, protein, fiber, lignin, and percentage digestibility. Statistical analyses were performed using mixed models and PCA. The direct selection for dry matter production provided a 37.51% genetic gain. Agronomic traits using indices provided greater gains. Genitors selected using PCA Biplot were similar to selections using indices. Indices and PCA were proven to be an excellent tool to select multi-traits in U. decumbens.
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spelling Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbensBrachiaria decumbensgenetic gainrecurrent selectiontropical forageAbstract The selection of sexual genitors in Urochloa decumbens breeding is dependent upon the performance of their progeny simultaneously for several traits. Thus, our objectives were to (i) compare the efficiency of indices to select genitors of U. decumbens, (ii) evaluate the genetic gains obtained through selection intensities, and (iii) evaluate the multivariate pattern of progenies through principal components analysis (PCA). For this purpose, 1415 hybrids from 75 progenies of full siblings were evaluated at Embrapa Beef Cattle (Brazil) using seven cuts for dry matter production, regrowth, protein, fiber, lignin, and percentage digestibility. Statistical analyses were performed using mixed models and PCA. The direct selection for dry matter production provided a 37.51% genetic gain. Agronomic traits using indices provided greater gains. Genitors selected using PCA Biplot were similar to selections using indices. Indices and PCA were proven to be an excellent tool to select multi-traits in U. decumbens.Crop Breeding and Applied Biotechnology2020-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000200202Crop Breeding and Applied Biotechnology v.20 n.2 2020reponame:Crop Breeding and Applied Biotechnologyinstname:Sociedade Brasileira de Melhoramento de Plantasinstacron:CBAB10.1590/1984-70332020v20n2a18info:eu-repo/semantics/openAccessMatias,Filipe InácioValle,Cacilda Borges doGouveia,Beatriz ToméMoro,Gustavo VittiBarrios,Sanzio Carvalho Limaeng2020-07-15T00:00:00Zoai:scielo:S1984-70332020000200202Revistahttps://cbab.sbmp.org.br/#ONGhttps://old.scielo.br/oai/scielo-oai.phpcbabjournal@gmail.com||cbab@ufv.br1984-70331518-7853opendoar:2020-07-15T00:00Crop Breeding and Applied Biotechnology - Sociedade Brasileira de Melhoramento de Plantasfalse
dc.title.none.fl_str_mv Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
title Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
spellingShingle Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
Matias,Filipe Inácio
Brachiaria decumbens
genetic gain
recurrent selection
tropical forage
title_short Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
title_full Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
title_fullStr Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
title_full_unstemmed Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
title_sort Using additive indices and principal components to select sexual genitors and hybrids of Urochloa decumbens
author Matias,Filipe Inácio
author_facet Matias,Filipe Inácio
Valle,Cacilda Borges do
Gouveia,Beatriz Tomé
Moro,Gustavo Vitti
Barrios,Sanzio Carvalho Lima
author_role author
author2 Valle,Cacilda Borges do
Gouveia,Beatriz Tomé
Moro,Gustavo Vitti
Barrios,Sanzio Carvalho Lima
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Matias,Filipe Inácio
Valle,Cacilda Borges do
Gouveia,Beatriz Tomé
Moro,Gustavo Vitti
Barrios,Sanzio Carvalho Lima
dc.subject.por.fl_str_mv Brachiaria decumbens
genetic gain
recurrent selection
tropical forage
topic Brachiaria decumbens
genetic gain
recurrent selection
tropical forage
description Abstract The selection of sexual genitors in Urochloa decumbens breeding is dependent upon the performance of their progeny simultaneously for several traits. Thus, our objectives were to (i) compare the efficiency of indices to select genitors of U. decumbens, (ii) evaluate the genetic gains obtained through selection intensities, and (iii) evaluate the multivariate pattern of progenies through principal components analysis (PCA). For this purpose, 1415 hybrids from 75 progenies of full siblings were evaluated at Embrapa Beef Cattle (Brazil) using seven cuts for dry matter production, regrowth, protein, fiber, lignin, and percentage digestibility. Statistical analyses were performed using mixed models and PCA. The direct selection for dry matter production provided a 37.51% genetic gain. Agronomic traits using indices provided greater gains. Genitors selected using PCA Biplot were similar to selections using indices. Indices and PCA were proven to be an excellent tool to select multi-traits in U. decumbens.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
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=S1984-70332020000200202
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-70332020000200202
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1984-70332020v20n2a18
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.20 n.2 2020
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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