Estimates of crossing frequency in Bromus auleticus

Detalhes bibliográficos
Autor(a) principal: Dalagnol, Gilberto Luiz
Data de Publicação: 2021
Tipo de documento: Artigo
Idioma: por
Título da fonte: Agropecuária Catarinense (Online)
Texto Completo: https://publicacoes.epagri.sc.gov.br/rac/article/view/982
Resumo: It is important to know the plant reproduction mode for the exploration and management of thenatural plant population, as well as for breeding program and germoplasm regeneration of accessions. Bromus auleticus Trinius is a perennial winter grass, native of South America which shows high potential for forage and has good adaptation to soil and climate adversities. The objective of this work was to characterize the reproductivesystem of the species and to estimate its crossing frequency among the accesses existing at Epagri/ Experiment Station of Lages. Four progenies originated from natural crosses were characterized by ten allozymic loci (PGI, SKDH, IDH, PRX1, PRX2, PRX3, MDH1, MDH3, 6PGD and EST). Crossing frequency of unilocus and multilocuswere estimated using the allelic frequencies and the MLT program (Ritland, 1990). The unilocus estimation variedfrom 0,001 to 1,648 and had a mean frequency of 0,571. The multilocus had a frequency of 1,096. Based on these results, the reproduction mode is predominantly allogamic.
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spelling Estimates of crossing frequency in Bromus auleticusEstimativa da taxa de cruzamento em Bromus auleticusalozimasunilocomultilocosautogamiaalogamiaallozymesunilocusmultilocusautogamyallogamyIt is important to know the plant reproduction mode for the exploration and management of thenatural plant population, as well as for breeding program and germoplasm regeneration of accessions. Bromus auleticus Trinius is a perennial winter grass, native of South America which shows high potential for forage and has good adaptation to soil and climate adversities. The objective of this work was to characterize the reproductivesystem of the species and to estimate its crossing frequency among the accesses existing at Epagri/ Experiment Station of Lages. Four progenies originated from natural crosses were characterized by ten allozymic loci (PGI, SKDH, IDH, PRX1, PRX2, PRX3, MDH1, MDH3, 6PGD and EST). Crossing frequency of unilocus and multilocuswere estimated using the allelic frequencies and the MLT program (Ritland, 1990). The unilocus estimation variedfrom 0,001 to 1,648 and had a mean frequency of 0,571. The multilocus had a frequency of 1,096. Based on these results, the reproduction mode is predominantly allogamic. O conhecimento do modo de reprodução das espécies vegetais é fundamental na exploração e no manejo de populações naturais, nos programas de melhoramento genético e regeneração de acessos em bancos de germoplasmas. Bromus auleticus Trinius é uma gramínea hibernal, perene, nativa da América do Sul, com alto potencial forrageiro e adaptativo a condições adversas de clima e solo. O objetivo do trabalho foi caracterizar osistema reprodutivo da espécie e estimar a taxa de cruzamento entre acessos existentes na Epagri/Estação Experimental de Lages. Quatro progênies oriundas de cruzamentos naturais foram caracterizadas utilizando-sedez locos isoenzimáticos (PGI, SKDH, IDH, PRX1, PRX2, PRX3, MDH1, MDH3, 6PGDH, £-EST). Foram estimadas as taxas de cruzamento uniloco e multilocos, usando as freqüências alélicas das progênies com análise do programaMLT (Ritland, 1990). As estimativas uniloco variaram de 0,001 a 1,648, com média de 0,571, e a multilocos foi de 1,096, o que caracteriza que o modo de reprodução predominante é a alogamia.Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri2021-06-23info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://publicacoes.epagri.sc.gov.br/rac/article/view/982Agropecuária Catarinense Journal; Vol. 18 No. 3 (2005); 69-72Agropecuária Catarinense; v. 18 n. 3 (2005); 69-722525-60760103-0779reponame:Agropecuária Catarinense (Online)instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)instacron:EPAGRIporhttps://publicacoes.epagri.sc.gov.br/rac/article/view/982/879Copyright (c) 2005 Agropecuaria catarinensehttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessDalagnol, Gilberto Luiz2021-06-23T14:20:52Zoai:ojs.publicacoes.epagri.sc.gov.br:article/982Revistahttps://publicacoes.epagri.sc.gov.br/RAC/indexPUBhttps://publicacoes.epagri.sc.gov.br/index.php/RAC/oaieditoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br2525-60760103-0779opendoar:2021-06-23T14:20:52Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)false
dc.title.none.fl_str_mv Estimates of crossing frequency in Bromus auleticus
Estimativa da taxa de cruzamento em Bromus auleticus
title Estimates of crossing frequency in Bromus auleticus
spellingShingle Estimates of crossing frequency in Bromus auleticus
Dalagnol, Gilberto Luiz
alozimas
uniloco
multilocos
autogamia
alogamia
allozymes
unilocus
multilocus
autogamy
allogamy
title_short Estimates of crossing frequency in Bromus auleticus
title_full Estimates of crossing frequency in Bromus auleticus
title_fullStr Estimates of crossing frequency in Bromus auleticus
title_full_unstemmed Estimates of crossing frequency in Bromus auleticus
title_sort Estimates of crossing frequency in Bromus auleticus
author Dalagnol, Gilberto Luiz
author_facet Dalagnol, Gilberto Luiz
author_role author
dc.contributor.author.fl_str_mv Dalagnol, Gilberto Luiz
dc.subject.por.fl_str_mv alozimas
uniloco
multilocos
autogamia
alogamia
allozymes
unilocus
multilocus
autogamy
allogamy
topic alozimas
uniloco
multilocos
autogamia
alogamia
allozymes
unilocus
multilocus
autogamy
allogamy
description It is important to know the plant reproduction mode for the exploration and management of thenatural plant population, as well as for breeding program and germoplasm regeneration of accessions. Bromus auleticus Trinius is a perennial winter grass, native of South America which shows high potential for forage and has good adaptation to soil and climate adversities. The objective of this work was to characterize the reproductivesystem of the species and to estimate its crossing frequency among the accesses existing at Epagri/ Experiment Station of Lages. Four progenies originated from natural crosses were characterized by ten allozymic loci (PGI, SKDH, IDH, PRX1, PRX2, PRX3, MDH1, MDH3, 6PGD and EST). Crossing frequency of unilocus and multilocuswere estimated using the allelic frequencies and the MLT program (Ritland, 1990). The unilocus estimation variedfrom 0,001 to 1,648 and had a mean frequency of 0,571. The multilocus had a frequency of 1,096. Based on these results, the reproduction mode is predominantly allogamic.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-23
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://publicacoes.epagri.sc.gov.br/rac/article/view/982
url https://publicacoes.epagri.sc.gov.br/rac/article/view/982
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://publicacoes.epagri.sc.gov.br/rac/article/view/982/879
dc.rights.driver.fl_str_mv Copyright (c) 2005 Agropecuaria catarinense
https://creativecommons.org/licenses/by/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2005 Agropecuaria catarinense
https://creativecommons.org/licenses/by/4.0
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
publisher.none.fl_str_mv Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina - Epagri
dc.source.none.fl_str_mv Agropecuária Catarinense Journal; Vol. 18 No. 3 (2005); 69-72
Agropecuária Catarinense; v. 18 n. 3 (2005); 69-72
2525-6076
0103-0779
reponame:Agropecuária Catarinense (Online)
instname:Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron:EPAGRI
instname_str Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
instacron_str EPAGRI
institution EPAGRI
reponame_str Agropecuária Catarinense (Online)
collection Agropecuária Catarinense (Online)
repository.name.fl_str_mv Agropecuária Catarinense (Online) - Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina (Epagri)
repository.mail.fl_str_mv editoriarac@epagri.sc.gov.br || lamperuch@epagri.sc.gov.br
_version_ 1754917260804227072

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