Genomic behavior of hybrid combinations between elephant grass and pearl millet
Autor(a) principal: | |
---|---|
Data de Publicação: | 2011 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/39007 |
Resumo: | The objective of this work was to evaluate the genomic behavior of hybrid combinations between elephant grass (Pennisetum purpureum) and pearl millet (P. glaucum). Tetraploid (AAA'B) and pentaploid (AA'A'BB) chromosome races resulting from the backcross of the hexaploid hybrid to its parents elephant grass (A'A'BB) and pearl millet (AA) were analyzed as to chromosome number and DNA content. Genotypes of elephant grass, millet, and triploid and hexaploid induced hybrids were compared. Pentaploid and tetraploid genomic combinations showed high level of mixoploidy, in discordance with the expected somatic chromosome set. The pentaploid chromosome number ranged from 20 to 34, and the tetraploid chromosome number from 16 to 28. Chromosome number variation was higher in pentaploid genomic combinations than in tetraploid, and mixoploidy was observed among hexaploids. Genomic combinations 4x and 5x are mixoploid, and the variation of chromosome number within chromosomal race 5x is greater than in 4x. |
id |
UFLA_2c08a1e2e3a45f7364f10cc728ac0b0b |
---|---|
oai_identifier_str |
oai:localhost:1/39007 |
network_acronym_str |
UFLA |
network_name_str |
Repositório Institucional da UFLA |
repository_id_str |
|
spelling |
Genomic behavior of hybrid combinations between elephant grass and pearl milletComportamento genômico de combinações híbridas entre capim-elefante e milhetoPennisetum glaucumPennisetum purpureumDNA contentInterspecific hybridsMixoploidyConteúdo de DNAHíbridos interespecíficosMixoploidiaThe objective of this work was to evaluate the genomic behavior of hybrid combinations between elephant grass (Pennisetum purpureum) and pearl millet (P. glaucum). Tetraploid (AAA'B) and pentaploid (AA'A'BB) chromosome races resulting from the backcross of the hexaploid hybrid to its parents elephant grass (A'A'BB) and pearl millet (AA) were analyzed as to chromosome number and DNA content. Genotypes of elephant grass, millet, and triploid and hexaploid induced hybrids were compared. Pentaploid and tetraploid genomic combinations showed high level of mixoploidy, in discordance with the expected somatic chromosome set. The pentaploid chromosome number ranged from 20 to 34, and the tetraploid chromosome number from 16 to 28. Chromosome number variation was higher in pentaploid genomic combinations than in tetraploid, and mixoploidy was observed among hexaploids. Genomic combinations 4x and 5x are mixoploid, and the variation of chromosome number within chromosomal race 5x is greater than in 4x.O objetivo deste trabalho foi avaliar o comportamento genômico de combinações híbridas resultantes do cruzamento entre capim-elefante (Pennisetum purpureum) e milheto (P. glaucum). Raças cromossômicas tetraploides (AAA'B) e pentaploides (AA'A'BB), resultantes do retrocruzamento do híbrido hexaploide com seus parentais capim-elefante (A'A'BB) e milheto (AA), foram avaliadas quanto ao número cromossômico e ao conteúdo de DNA. Foram comparados os genótipos de capim-elefante, milheto e de híbridos triploides e hexaploides induzidos. As combinações genômicas pentaploides e tetraploides mostraram elevado grau de mixoploidia, em desacordo com o complemento cromossômico somático esperado. O número cromossômico dos pentaploides variou de 20 a 34, e o dos tetraploides de 16 a 28. A variação do número cromossômico foi maior nas combinações genômicas pentaploides do que nas tetraploides, e a mixoploidia foi verificada entre hexaploides. As combinações genômicas 4x e 5x são mixoploides, e a variação do número de cromossomos na raça cromossômica 5x é maior do que na 4x.Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira2020-02-12T14:46:26Z2020-02-12T14:46:26Z2011-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLEÃO, F. F.; DAVIDE, L. C.; CAMPOS, J. M. S. de; PEREIRA, A. V.; BUSTAMANTE, F. de O. Genomic behavior of hybrid combinations between elephant grass and pearl millet. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 7, p. 712-719, jul. 2011.http://repositorio.ufla.br/jspui/handle/1/39007Pesquisa Agropecuária Brasileirareponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAAttribution-NonCommercial 4.0 Internationalhttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccessLeão, Fernando FerreiraDavide, Lisete ChammaCampos, José Marcello Salabert dePereira, Antonio VanderBustamante, Fernanda de Oliveirapor2020-02-12T14:46:27Zoai:localhost:1/39007Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2020-02-12T14:46:27Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Genomic behavior of hybrid combinations between elephant grass and pearl millet Comportamento genômico de combinações híbridas entre capim-elefante e milheto |
title |
Genomic behavior of hybrid combinations between elephant grass and pearl millet |
spellingShingle |
Genomic behavior of hybrid combinations between elephant grass and pearl millet Leão, Fernando Ferreira Pennisetum glaucum Pennisetum purpureum DNA content Interspecific hybrids Mixoploidy Conteúdo de DNA Híbridos interespecíficos Mixoploidia |
title_short |
Genomic behavior of hybrid combinations between elephant grass and pearl millet |
title_full |
Genomic behavior of hybrid combinations between elephant grass and pearl millet |
title_fullStr |
Genomic behavior of hybrid combinations between elephant grass and pearl millet |
title_full_unstemmed |
Genomic behavior of hybrid combinations between elephant grass and pearl millet |
title_sort |
Genomic behavior of hybrid combinations between elephant grass and pearl millet |
author |
Leão, Fernando Ferreira |
author_facet |
Leão, Fernando Ferreira Davide, Lisete Chamma Campos, José Marcello Salabert de Pereira, Antonio Vander Bustamante, Fernanda de Oliveira |
author_role |
author |
author2 |
Davide, Lisete Chamma Campos, José Marcello Salabert de Pereira, Antonio Vander Bustamante, Fernanda de Oliveira |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Leão, Fernando Ferreira Davide, Lisete Chamma Campos, José Marcello Salabert de Pereira, Antonio Vander Bustamante, Fernanda de Oliveira |
dc.subject.por.fl_str_mv |
Pennisetum glaucum Pennisetum purpureum DNA content Interspecific hybrids Mixoploidy Conteúdo de DNA Híbridos interespecíficos Mixoploidia |
topic |
Pennisetum glaucum Pennisetum purpureum DNA content Interspecific hybrids Mixoploidy Conteúdo de DNA Híbridos interespecíficos Mixoploidia |
description |
The objective of this work was to evaluate the genomic behavior of hybrid combinations between elephant grass (Pennisetum purpureum) and pearl millet (P. glaucum). Tetraploid (AAA'B) and pentaploid (AA'A'BB) chromosome races resulting from the backcross of the hexaploid hybrid to its parents elephant grass (A'A'BB) and pearl millet (AA) were analyzed as to chromosome number and DNA content. Genotypes of elephant grass, millet, and triploid and hexaploid induced hybrids were compared. Pentaploid and tetraploid genomic combinations showed high level of mixoploidy, in discordance with the expected somatic chromosome set. The pentaploid chromosome number ranged from 20 to 34, and the tetraploid chromosome number from 16 to 28. Chromosome number variation was higher in pentaploid genomic combinations than in tetraploid, and mixoploidy was observed among hexaploids. Genomic combinations 4x and 5x are mixoploid, and the variation of chromosome number within chromosomal race 5x is greater than in 4x. |
publishDate |
2011 |
dc.date.none.fl_str_mv |
2011-07 2020-02-12T14:46:26Z 2020-02-12T14:46:26Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
LEÃO, F. F.; DAVIDE, L. C.; CAMPOS, J. M. S. de; PEREIRA, A. V.; BUSTAMANTE, F. de O. Genomic behavior of hybrid combinations between elephant grass and pearl millet. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 7, p. 712-719, jul. 2011. http://repositorio.ufla.br/jspui/handle/1/39007 |
identifier_str_mv |
LEÃO, F. F.; DAVIDE, L. C.; CAMPOS, J. M. S. de; PEREIRA, A. V.; BUSTAMANTE, F. de O. Genomic behavior of hybrid combinations between elephant grass and pearl millet. Pesquisa Agropecuária Brasileira, Brasília, DF, v. 46, n. 7, p. 712-719, jul. 2011. |
url |
http://repositorio.ufla.br/jspui/handle/1/39007 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Attribution-NonCommercial 4.0 International http://creativecommons.org/licenses/by-nc/4.0/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Embrapa Secretaria de Pesquisa e Desenvolvimento Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuária Brasileira reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
_version_ |
1807835055278522368 |