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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
24/09/2010 |
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Data da última atualização: |
28/09/2010 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
JUNGMANN, L.; VIGNA, B. B. Z.; BOLDRINI, A. C. B.; SOUSA, A. C. B.; VALLE, C. B. do; RESENDE, R. M. S.; PAGLIARINI, M. S.; ZUCCHI, M. I.; SOUZA, A. P. de. |
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Afiliação: |
LETICIA JUNGMANN CANCADO, CNPGC; B. B. Z. VIGNA, UNICAMP; A. C. B. BOLDRINI, UEM; A. C. B. SOUSA, UNICAMP; CACILDA BORGES DO VALLE, CNPGC; ROSANGELA MARIA SIMEAO RESENDE, CNPGC; M. S. PAGLIARINI, UEM; M. I. ZUCCHI, APTS PÓLO CENTRO SUL; A. P. DE SOUZA, UNICAMP. |
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Título: |
Genetic diversity and population structure analysis of the tropical pasture grass Brachiaria humidicola based on microsatellites, cytogenetics, morphological traits, and geographical origin. |
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Ano de publicação: |
2010 |
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Fonte/Imprenta: |
Genome, v.53, n.9, p. 698-709, Sept. 2010. |
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Idioma: |
Inglês |
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Conteúdo: |
Brachiaria humidicola (Rendle) Schweick. is a warm-season grass commonly used as forage in the tropics. Accessions of this species were collected in eastern Africa and massively introduced into South America in the 1980s. Several of these accessions form a germplasm collection at the Brazilian Agricultural Research Corporation. However, apomixis, ploidy, and limited knowledge of the genetic basis of this germplasm collection have constrained breeding activities. The objectives of this work were to identify genetic variability in the Brazilian B. humidicola germplasm collection using microsatellite markers and to compare the results with information on the following: (1) collection sites of the accessions; (2) reproductive mode and ploidy levels; and (3) genetic diversity revealed by morphological traits. The evaluated germplasm population is highly structured into four major groups. The sole sexual accession did not group with any of the clusters. Genetic dissimilarities did not correlate with either geographic distances or genetic distances inferred from morphological descriptors. Additionally, the genetic structure identified in this collection did not correspond to differences in ploidy level. Alleles exclusive to either sexual or apomictic accessions were identified, suggesting that further evaluation of the association of these loci with apospory should be carried out. |
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Palavras-Chave: |
Microssatélite. |
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Thesagro: |
Brachiaria Humidicola; Marcador Molecular; Melhoramento Genético Vegetal; Pastagem. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02290naa a2200277 a 4500
001 1862882
005 2010-09-28
008 2010 bl --- 0-- u #d
100 1 $aJUNGMANN, L.
245 $aGenetic diversity and population structure analysis of the tropical pasture grass Brachiaria humidicola based on microsatellites, cytogenetics, morphological traits, and geographical origin.
260 $c2010
520 $aBrachiaria humidicola (Rendle) Schweick. is a warm-season grass commonly used as forage in the tropics. Accessions of this species were collected in eastern Africa and massively introduced into South America in the 1980s. Several of these accessions form a germplasm collection at the Brazilian Agricultural Research Corporation. However, apomixis, ploidy, and limited knowledge of the genetic basis of this germplasm collection have constrained breeding activities. The objectives of this work were to identify genetic variability in the Brazilian B. humidicola germplasm collection using microsatellite markers and to compare the results with information on the following: (1) collection sites of the accessions; (2) reproductive mode and ploidy levels; and (3) genetic diversity revealed by morphological traits. The evaluated germplasm population is highly structured into four major groups. The sole sexual accession did not group with any of the clusters. Genetic dissimilarities did not correlate with either geographic distances or genetic distances inferred from morphological descriptors. Additionally, the genetic structure identified in this collection did not correspond to differences in ploidy level. Alleles exclusive to either sexual or apomictic accessions were identified, suggesting that further evaluation of the association of these loci with apospory should be carried out.
650 $aBrachiaria Humidicola
650 $aMarcador Molecular
650 $aMelhoramento Genético Vegetal
650 $aPastagem
653 $aMicrossatélite
700 1 $aVIGNA, B. B. Z.
700 1 $aBOLDRINI, A. C. B.
700 1 $aSOUSA, A. C. B.
700 1 $aVALLE, C. B. do
700 1 $aRESENDE, R. M. S.
700 1 $aPAGLIARINI, M. S.
700 1 $aZUCCHI, M. I.
700 1 $aSOUZA, A. P. de
773 $tGenome$gv.53, n.9, p. 698-709, Sept. 2010.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Cerrados. |
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Data corrente: |
08/12/2003 |
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Data da última atualização: |
28/10/2009 |
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Autoria: |
BARCELLOS, A. de O.; ANDRADE, R. P. de; ZOBY, J. L. F.; VILELA, L. |
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Título: |
Bancos de proteína de Stylosanthes guianensis cv Mineirao: maneira simples de baixo custo para fornecer proteína ao gado na seca. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Planaltina, DF: Embrapa Cerrados, 2001. |
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Páginas: |
6 p. |
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Série: |
(Embrapa Cerrados. Circular Técnica, 14). |
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Idioma: |
Português |
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Conteúdo: |
ABSTRACT: Stylosanthes guianesis, a Cerrado native species, shows excellent adaptation to this Region, is drought resistance and a ecotype, release as cv. Mineirão, is indicated as protein bank. The Mineirão protein bank has been successfully adopted by farmers to complement cattle diet in cultivated grass pastures during the dry season. This is specially true for Brachiaria brizantha cv. Marandu, the most widespread grass in the Region and which is not suitable for mixing with tropical pasture legumes. Mineirão protein banks can also be an efficient complement for native pastures. Research data and farmer's experiences all over the region supports the use of Mineirão protein bank as an alternative to reduce production costs and increase milk and beef productivity. |
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Palavras-Chave: |
Banco de proteína; Controle; cv; Feed legumes; Mineirão; Natural pastures; Protein bank; Stilosante. |
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Thesagro: |
Adubação; Cerrado; Erva Daninha; Leguminosa Forrageira; Nutrição Animal; Pastagem Nativa; Proteína; Stylosanthes Guianensis; Variedade. |
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Thesaurus NAL: |
animal nutrition; varieties. |
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Categoria do assunto: |
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L Ciência Animal e Produtos de Origem Animal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAC-2009/24068/1/cirtec_14.pdf
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Marc: |
LEADER 01887nam a2200397 a 4500
001 1567391
005 2009-10-28
008 2001 bl uuuu u0uu1 u #d
100 1 $aBARCELLOS, A. de O.
245 $aBancos de proteína de Stylosanthes guianensis cv Mineirao$bmaneira simples de baixo custo para fornecer proteína ao gado na seca.
260 $aPlanaltina, DF: Embrapa Cerrados$c2001
300 $a6 p.
490 $a(Embrapa Cerrados. Circular Técnica, 14).
520 $aABSTRACT: Stylosanthes guianesis, a Cerrado native species, shows excellent adaptation to this Region, is drought resistance and a ecotype, release as cv. Mineirão, is indicated as protein bank. The Mineirão protein bank has been successfully adopted by farmers to complement cattle diet in cultivated grass pastures during the dry season. This is specially true for Brachiaria brizantha cv. Marandu, the most widespread grass in the Region and which is not suitable for mixing with tropical pasture legumes. Mineirão protein banks can also be an efficient complement for native pastures. Research data and farmer's experiences all over the region supports the use of Mineirão protein bank as an alternative to reduce production costs and increase milk and beef productivity.
650 $aanimal nutrition
650 $avarieties
650 $aAdubação
650 $aCerrado
650 $aErva Daninha
650 $aLeguminosa Forrageira
650 $aNutrição Animal
650 $aPastagem Nativa
650 $aProteína
650 $aStylosanthes Guianensis
650 $aVariedade
653 $aBanco de proteína
653 $aControle
653 $acv
653 $aFeed legumes
653 $aMineirão
653 $aNatural pastures
653 $aProtein bank
653 $aStilosante
700 1 $aANDRADE, R. P. de
700 1 $aZOBY, J. L. F.
700 1 $aVILELA, L.
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Embrapa Cerrados (CPAC) |
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