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Registro Completo |
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Biblioteca(s): |
Embrapa Agroenergia; Embrapa Milho e Sorgo; Embrapa Pecuária Sudeste. |
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Data corrente: |
02/12/2016 |
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Data da última atualização: |
02/12/2016 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
VIGNA, B. B. Z.; SANTOS, J. C. S.; JUNGMANN, L.; VALLE, C. B. do; MOLLINARI, M.; PASTINA, M. M.; PAGLIARINI, M. S.; GARCIA, A. A. F.; SOUZA, A. P. |
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Afiliação: |
Bianca B. Z. Vigna, UNICAMP; Jean C. S. Santos, UNICAMP; LETICIA JUNGMANN CANCADO, CNPAE; CACILDA BORGES DO VALLE, CNPGC; Marcelo Mollinari, ESALQ; MARIA MARTA PASTINA, CNPMS; Maria Suely Pagliarini, Universidade Estadual de Maringá; Antonio A. F. Garcia, ESALQ; Anete P. Souza, UNICAMP. |
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Título: |
Evidence of Allopolyploidy in Urochloa humidicola based on cytological analysis and genetic linkage mapping. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Plos One, San Francisco, v. 11, n. 4, p. 1-23, Apr. 2016. |
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DOI: |
10.1371/ journal.pone.0153764 |
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Idioma: |
Inglês |
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Conteúdo: |
The African species Urochloa humidicola (Rendle) Morrone & Zuloaga (syn. Brachiaria humidicola (Rendle) Schweick.) is an important perennial forage grass found throughout the tropics. This species is polyploid, ranging from tetra to nonaploid, and apomictic, which makes genetic studies challenging; therefore, the number of currently available genetic resources is limited. The genomic architecture and evolution of U. humidicola and the molecular markers linked to apomixis were investigated in a full-sib F1 population obtained by crossing the sexual accession H031 and the apomictic cultivar U. humidicola cv. BRS Tupi, both of which are hexaploid. A simple sequence repeat (SSR)-based linkage map was constructed for the species from 102 polymorphic and specific SSR markers based on simplex and double-simplex markers. The map consisted of 49 linkage groups (LGs) and had a total length of 1702.82 cM, with 89 microsatellite loci and an average map density of 10.6 cM. Eight homology groups (HGs) were formed, comprising 22 LGs, and the other LGs remained ungrouped. The locus that controls apospory (apo-locus) was mapped in LG02 and was located 19.4 cM from the locus Bh027.c.D2. In the cytological analyses of some hybrids, bi- to hexavalents at diakinesis were observed, as well as two nucleoli in some meiocytes, smaller chromosomes with preferential allocation within the first metaphase plate and asynchronous chromosome migration to the poles during anaphase. The linkage map and the meiocyte analyses confirm previous reports of hybridization and suggest an allopolyploid origin of the hexaploid U. humidicola. This is the first linkage map of an Urochloa species, and it will be useful for future quantitative trait locus (QTL) analysis after saturation of the map and for genome assembly and evolutionary studies in Urochloa spp. Moreover, the results of the apomixis mapping are consistent with previous reports and confirm the need for additional studies to search for a co-segregating marker. MenosThe African species Urochloa humidicola (Rendle) Morrone & Zuloaga (syn. Brachiaria humidicola (Rendle) Schweick.) is an important perennial forage grass found throughout the tropics. This species is polyploid, ranging from tetra to nonaploid, and apomictic, which makes genetic studies challenging; therefore, the number of currently available genetic resources is limited. The genomic architecture and evolution of U. humidicola and the molecular markers linked to apomixis were investigated in a full-sib F1 population obtained by crossing the sexual accession H031 and the apomictic cultivar U. humidicola cv. BRS Tupi, both of which are hexaploid. A simple sequence repeat (SSR)-based linkage map was constructed for the species from 102 polymorphic and specific SSR markers based on simplex and double-simplex markers. The map consisted of 49 linkage groups (LGs) and had a total length of 1702.82 cM, with 89 microsatellite loci and an average map density of 10.6 cM. Eight homology groups (HGs) were formed, comprising 22 LGs, and the other LGs remained ungrouped. The locus that controls apospory (apo-locus) was mapped in LG02 and was located 19.4 cM from the locus Bh027.c.D2. In the cytological analyses of some hybrids, bi- to hexavalents at diakinesis were observed, as well as two nucleoli in some meiocytes, smaller chromosomes with preferential allocation within the first metaphase plate and asynchronous chromosome migration to the poles during anaphase. The linkage map and the m... Mostrar Tudo |
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Palavras-Chave: |
Análise citológica; Cytological analysis; Genetic linkage mapping; Grass; Ligações genéticas; Mapeamento genético. |
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Thesagro: |
Gene; Genoma; Planta forrageira. |
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Thesaurus Nal: |
Grasses. |
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Categoria do assunto: |
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F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/151127/1/Evidence-allopolyploidy.PDF
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Marc: |
LEADER 03041naa a2200349 a 4500
001 2057798
005 2016-12-02
008 2016 bl uuuu u00u1 u #d
024 7 $a10.1371/ journal.pone.0153764$2DOI
100 1 $aVIGNA, B. B. Z.
245 $aEvidence of Allopolyploidy in Urochloa humidicola based on cytological analysis and genetic linkage mapping.$h[electronic resource]
260 $c2016
520 $aThe African species Urochloa humidicola (Rendle) Morrone & Zuloaga (syn. Brachiaria humidicola (Rendle) Schweick.) is an important perennial forage grass found throughout the tropics. This species is polyploid, ranging from tetra to nonaploid, and apomictic, which makes genetic studies challenging; therefore, the number of currently available genetic resources is limited. The genomic architecture and evolution of U. humidicola and the molecular markers linked to apomixis were investigated in a full-sib F1 population obtained by crossing the sexual accession H031 and the apomictic cultivar U. humidicola cv. BRS Tupi, both of which are hexaploid. A simple sequence repeat (SSR)-based linkage map was constructed for the species from 102 polymorphic and specific SSR markers based on simplex and double-simplex markers. The map consisted of 49 linkage groups (LGs) and had a total length of 1702.82 cM, with 89 microsatellite loci and an average map density of 10.6 cM. Eight homology groups (HGs) were formed, comprising 22 LGs, and the other LGs remained ungrouped. The locus that controls apospory (apo-locus) was mapped in LG02 and was located 19.4 cM from the locus Bh027.c.D2. In the cytological analyses of some hybrids, bi- to hexavalents at diakinesis were observed, as well as two nucleoli in some meiocytes, smaller chromosomes with preferential allocation within the first metaphase plate and asynchronous chromosome migration to the poles during anaphase. The linkage map and the meiocyte analyses confirm previous reports of hybridization and suggest an allopolyploid origin of the hexaploid U. humidicola. This is the first linkage map of an Urochloa species, and it will be useful for future quantitative trait locus (QTL) analysis after saturation of the map and for genome assembly and evolutionary studies in Urochloa spp. Moreover, the results of the apomixis mapping are consistent with previous reports and confirm the need for additional studies to search for a co-segregating marker.
650 $aGrasses
650 $aGene
650 $aGenoma
650 $aPlanta forrageira
653 $aAnálise citológica
653 $aCytological analysis
653 $aGenetic linkage mapping
653 $aGrass
653 $aLigações genéticas
653 $aMapeamento genético
700 1 $aSANTOS, J. C. S.
700 1 $aJUNGMANN, L.
700 1 $aVALLE, C. B. do
700 1 $aMOLLINARI, M.
700 1 $aPASTINA, M. M.
700 1 $aPAGLIARINI, M. S.
700 1 $aGARCIA, A. A. F.
700 1 $aSOUZA, A. P.
773 $tPlos One, San Francisco$gv. 11, n. 4, p. 1-23, Apr. 2016.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Suínos e Aves. Para informações adicionais entre em contato com cnpsa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Suínos e Aves. |
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Data corrente: |
27/09/2011 |
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Data da última atualização: |
27/09/2011 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BERTOL, T. M.; BRAÑA, D. V.; ELLIS, M.; RITTER, M. J.; PERTERSON, B. A.; MENDOZA, O. F.; MCKEITH, F. K. |
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Afiliação: |
TERESINHA MARISA BERTOL, CNPSA; University de Illinois; University de Illinois; University de Illinois; University de Illinois; University de Illinois; University de Illinois. |
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Título: |
Effect of feed withdrawal and dietary energy source on muscle glycolytic potential and blood acid-base responses to handling in slaughter-weight pigs. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 89, n. 5, p. 1561-1573, 2011. |
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Idioma: |
Português |
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Notas: |
Projeto: 02.09.07.007. |
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Palavras-Chave: |
Dieta animal. |
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Thesagro: |
Nutrição; Suíno. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 00738naa a2200229 a 4500
001 1901407
005 2011-09-27
008 2011 bl uuuu u00u1 u #d
100 1 $aBERTOL, T. M.
245 $aEffect of feed withdrawal and dietary energy source on muscle glycolytic potential and blood acid-base responses to handling in slaughter-weight pigs.$h[electronic resource]
260 $c2011
500 $aProjeto: 02.09.07.007.
650 $aNutrição
650 $aSuíno
653 $aDieta animal
700 1 $aBRAÑA, D. V.
700 1 $aELLIS, M.
700 1 $aRITTER, M. J.
700 1 $aPERTERSON, B. A.
700 1 $aMENDOZA, O. F.
700 1 $aMCKEITH, F. K.
773 $tJournal of Animal Science$gv. 89, n. 5, p. 1561-1573, 2011.
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Embrapa Suínos e Aves (CNPSA) |
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