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 | Acesso ao texto completo restrito à biblioteca da Embrapa Recursos Genéticos e Biotecnologia. Para informações adicionais entre em contato com cenargen.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
24/02/2016 |
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Data da última atualização: |
23/03/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
LIMA, B. M.; GARCIA, C.; ALMEIDA, A.; SILVA JUNIOR, O. B.; VENCOVSKY, R.; MANSFIELD, S. D.; GRATTAPAGLIA, D. |
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Afiliação: |
BRUNO M. LIMA, FIBRIA S.A. TECHNOLOGY CENTER; CARLA GARCIA, INTERNATIONAL PAPER DO BRASIL; ADRIANO ALMEIDA, INTERNATIONAL PAPER DO BRASIL; ORZENIL BONFIM DA SILVA JUNIOR, CENARGEN; ROLAND VENCOVSKY, USP; SHAWN D. MANSFIELD, UNIVERSITY OF BRITISH COLUMBIA; DARIO GRATTAPAGLIA, CENARGEN. |
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Título: |
Genome-wide prediction of individual tree ranking for growth, chemical and physical wood properties in Eucalyptus based on High-Density SNP Data from the EUChip60K. |
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Ano de publicação: |
2015 |
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Fonte/Imprenta: |
In: PLANT & ANIMAL GENOME CONFERENCE, 23., 2015, San Diego, CA. [Abstracts...]. San Diego: [s.n.], 2015. |
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Idioma: |
Inglês |
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Notas: |
PAG 2015. Pôster P1230. |
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Conteúdo: |
Despite their fast growth, eucalypt breeding cycles still take >12 years and wood properties assessment is limited to a sample of trees in late stages of selection, preventing the full exploitation of the existing genetic variation. We examined fifteen growth and wood chemical and physical traits in 1,000 progeny individuals derived from an elite Eucalyptus breeding population of International Paper do Brasil. Near-infrared spectroscopy models were developed and used for high-throughput wood phenotyping. A total of 29,090 SNPs were retained for genomic prediction analyses, providing 1 SNP/22 kbp in the Eucalyptus genome, a higher marker density than any previous study in trees. RR-BLUP and BLASSO were used for genomic predictions, and compared to the performance of BLUP phenotypic selection. Predictive abilities reached similar estimates with the two approaches, varying from a low of 0.10, for microfibril angle, to 0.42 for volume growth, and up to 0.83, for syringyl:guaiacyl lignin ratio. Correlations between genomic and phenotypic predictions ranged between 0.771 and 0.929, and were best for wood chemical traits, density and growth. Both genomic prediction models yielded a coincidence >70% for the top 30 trees ranked by phenotypic selection for volume growth, wood density and S:G ratio, and >60% in the top 10 trees. When tandem multi-trait selection was applied to these traits simultaneously, 15 out of the top 25 trees selected based on phenotypes were also selected by genomic selection (GS). These results corroborate earlier results by which GS could significantly reduce the length of a breeding cycle in Eucalyptus by applying ultra-early selection of genomically multi-trait ranked seedlings precluding the progeny trial stage. Top ranked seedlings for GEBV would be subject to early flower induction and inter-mated to create the next generation of breeding and/or deployed into field validation clonal trials depending on the breeding objectives. MenosDespite their fast growth, eucalypt breeding cycles still take >12 years and wood properties assessment is limited to a sample of trees in late stages of selection, preventing the full exploitation of the existing genetic variation. We examined fifteen growth and wood chemical and physical traits in 1,000 progeny individuals derived from an elite Eucalyptus breeding population of International Paper do Brasil. Near-infrared spectroscopy models were developed and used for high-throughput wood phenotyping. A total of 29,090 SNPs were retained for genomic prediction analyses, providing 1 SNP/22 kbp in the Eucalyptus genome, a higher marker density than any previous study in trees. RR-BLUP and BLASSO were used for genomic predictions, and compared to the performance of BLUP phenotypic selection. Predictive abilities reached similar estimates with the two approaches, varying from a low of 0.10, for microfibril angle, to 0.42 for volume growth, and up to 0.83, for syringyl:guaiacyl lignin ratio. Correlations between genomic and phenotypic predictions ranged between 0.771 and 0.929, and were best for wood chemical traits, density and growth. Both genomic prediction models yielded a coincidence >70% for the top 30 trees ranked by phenotypic selection for volume growth, wood density and S:G ratio, and >60% in the top 10 trees. When tandem multi-trait selection was applied to these traits simultaneously, 15 out of the top 25 trees selected based on phenotypes were also selected by gen... Mostrar Tudo |
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Palavras-Chave: |
Eucalypt breeding. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02746nam a2200205 a 4500
001 2038485
005 2023-03-23
008 2015 bl uuuu u00u1 u #d
100 1 $aLIMA, B. M.
245 $aGenome-wide prediction of individual tree ranking for growth, chemical and physical wood properties in Eucalyptus based on High-Density SNP Data from the EUChip60K.$h[electronic resource]
260 $aIn: PLANT & ANIMAL GENOME CONFERENCE, 23., 2015, San Diego, CA. [Abstracts...]. San Diego: [s.n.], 2015.$c2015
500 $aPAG 2015. Pôster P1230.
520 $aDespite their fast growth, eucalypt breeding cycles still take >12 years and wood properties assessment is limited to a sample of trees in late stages of selection, preventing the full exploitation of the existing genetic variation. We examined fifteen growth and wood chemical and physical traits in 1,000 progeny individuals derived from an elite Eucalyptus breeding population of International Paper do Brasil. Near-infrared spectroscopy models were developed and used for high-throughput wood phenotyping. A total of 29,090 SNPs were retained for genomic prediction analyses, providing 1 SNP/22 kbp in the Eucalyptus genome, a higher marker density than any previous study in trees. RR-BLUP and BLASSO were used for genomic predictions, and compared to the performance of BLUP phenotypic selection. Predictive abilities reached similar estimates with the two approaches, varying from a low of 0.10, for microfibril angle, to 0.42 for volume growth, and up to 0.83, for syringyl:guaiacyl lignin ratio. Correlations between genomic and phenotypic predictions ranged between 0.771 and 0.929, and were best for wood chemical traits, density and growth. Both genomic prediction models yielded a coincidence >70% for the top 30 trees ranked by phenotypic selection for volume growth, wood density and S:G ratio, and >60% in the top 10 trees. When tandem multi-trait selection was applied to these traits simultaneously, 15 out of the top 25 trees selected based on phenotypes were also selected by genomic selection (GS). These results corroborate earlier results by which GS could significantly reduce the length of a breeding cycle in Eucalyptus by applying ultra-early selection of genomically multi-trait ranked seedlings precluding the progeny trial stage. Top ranked seedlings for GEBV would be subject to early flower induction and inter-mated to create the next generation of breeding and/or deployed into field validation clonal trials depending on the breeding objectives.
653 $aEucalypt breeding
700 1 $aGARCIA, C.
700 1 $aALMEIDA, A.
700 1 $aSILVA JUNIOR, O. B.
700 1 $aVENCOVSKY, R.
700 1 $aMANSFIELD, S. D.
700 1 $aGRATTAPAGLIA, D.
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Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros; Embrapa Unidades Centrais. |
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Data corrente: |
29/02/1996 |
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Data da última atualização: |
29/02/1996 |
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Autoria: |
ARAUJO, E. C. de; LANGUIDEY, P. H. |
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Título: |
Composicao quimica, consumo voluntario e digestibilidade aparente de fenos da rama de mandioca. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Pesquisa agropecuaria brasileira, v.17, n.11, p.1679-1684, 1982. |
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Idioma: |
Português |
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Conteúdo: |
RESUMO - Um ensaio de consumo e digestibilidade aparente dos nutrientes aproximados foi realizado utilizando-se carneiros emasculados com idade média de dois anos, peso médio de 42 kg, segundo método convencional, em casualização completa, com seis repetições. 0 material empregado, compreendendo o terço superior da parte aérea da mandioca (Manihot esculenta Crantz) variedade 'Caravela', foi obtido de plantas de dez a doze meses de idade. Os fenos foram confeccionados A) por processo de desidratação natural, ao ar livre em área ensolarada, e B) por desidratação artificial em fornos com aquecimento a lenha, sem controle de temperatura e de tempo de secagem. Os resultados das análises químicas e dos coeficientes de digestibilidade dos fenos, com base na percentagem de matéria seca, foram: 22,21 (57,09) e 23,12 (36,81) para proteína bruta; 24,89 (30,92) e 27,35 (33,70) para fibra bruta; 7,36 (38,41) e 6,83 (43,87) para extrato etéreo; 36,22 (48,52) e 32,88 (51,94) para extrato não nitrogenado; 88,34 (42,60) e 87,96 (41,03) para matéria seca; resultando em 43,12 e 41,54% para nutrientes digestíveis totais, para A e B, respectivamente. Houve diferença significativa entre: os coeficientes de digestibilidade da proteína bruta (P < 0,01); a proteína digestível (P < 0,01); e a fibra digestível (P < 0 05) Os consumos voluntários de matéria seca, proteína bruta e nutrientes digestíveis totais (g/kg W017) para A e B, respectivamente, foram 69,95 e 78,33; 15,82 e 18,47; e 30,14 e 32,74. ABSTRACT - An experiment with two-year old sheeps weighing 42 kg was conducted to evaluate the chemical composition, apparent digestibility and voluntary intake of cassava (Manihot esculenta Crantz), upper part hays, applying the conventional method of total feces collection in a complete randornized design with six replicates. The hays were compound by upper green third of cassava, variety 'Caravela', obtained from a 10 to 12-month old planting. There were two haymaking process: (A) dehydration through sunshine; and (B) dehidration through industrial furnace using firewood as heat source. The chemical analyses resulta of the hays and their related digestibility coefficients were: crude protein, 22.21 (57.09) and 23.12 (36.81); crude fiber, 24.89 (30.92) and 27.35 (33.70); ether extract, 7.36 (38.41) and 6.83 (43.87); nitrogen-free extract, 36.22 (48.52) and 32.88 (51.94); and, dry marter, 88.34 (42.60) and 87.96 (41.03), giving TDN values of 43.12 and 41.64 for A and B, respectively, on dry matter basis. There was significant difference between the digestibility coefficients of crude protein (P <0.01), the digestible protein (P <0.01) and the digestible fiber (P <0.05). The voluntary intakes of dry matter, crude protein and total digestible nutrients (g/kg W0.75 ) for A and B were: 69.95 and 78.33; 15.82 and 18.47; and 30.14 and 32.74, respectively. MenosRESUMO - Um ensaio de consumo e digestibilidade aparente dos nutrientes aproximados foi realizado utilizando-se carneiros emasculados com idade média de dois anos, peso médio de 42 kg, segundo método convencional, em casualização completa, com seis repetições. 0 material empregado, compreendendo o terço superior da parte aérea da mandioca (Manihot esculenta Crantz) variedade 'Caravela', foi obtido de plantas de dez a doze meses de idade. Os fenos foram confeccionados A) por processo de desidratação natural, ao ar livre em área ensolarada, e B) por desidratação artificial em fornos com aquecimento a lenha, sem controle de temperatura e de tempo de secagem. Os resultados das análises químicas e dos coeficientes de digestibilidade dos fenos, com base na percentagem de matéria seca, foram: 22,21 (57,09) e 23,12 (36,81) para proteína bruta; 24,89 (30,92) e 27,35 (33,70) para fibra bruta; 7,36 (38,41) e 6,83 (43,87) para extrato etéreo; 36,22 (48,52) e 32,88 (51,94) para extrato não nitrogenado; 88,34 (42,60) e 87,96 (41,03) para matéria seca; resultando em 43,12 e 41,54% para nutrientes digestíveis totais, para A e B, respectivamente. Houve diferença significativa entre: os coeficientes de digestibilidade da proteína bruta (P < 0,01); a proteína digestível (P < 0,01); e a fibra digestível (P < 0 05) Os consumos voluntários de matéria seca, proteína bruta e nutrientes digestíveis totais (g/kg W017) para A e B, respectivamente, foram 69,95 e 78,33; 15,82 e 18,47; e 30,14 e 32,74. A... Mostrar Tudo |
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Palavras-Chave: |
Casualizacao completa; Dehydration. |
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Thesagro: |
Composição Química; Desidratação; Digestibilidade; Fenação; Mandioca; Manihot Esculenta; Nutriente; Valor Nutritivo. |
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Thesaurus NAL: |
Cassava; Chemical composition; Digestibility; Nutritive value; Voluntary intake. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/202867/1/Composicao-quimica-consumo-voluntario.pdf
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Marc: |
LEADER 03798naa a2200313 a 4500
001 1353665
005 1996-02-29
008 1982 bl uuuu u00u1 u #d
100 1 $aARAUJO, E. C. de
245 $aComposicao quimica, consumo voluntario e digestibilidade aparente de fenos da rama de mandioca.
260 $c1982
520 $aRESUMO - Um ensaio de consumo e digestibilidade aparente dos nutrientes aproximados foi realizado utilizando-se carneiros emasculados com idade média de dois anos, peso médio de 42 kg, segundo método convencional, em casualização completa, com seis repetições. 0 material empregado, compreendendo o terço superior da parte aérea da mandioca (Manihot esculenta Crantz) variedade 'Caravela', foi obtido de plantas de dez a doze meses de idade. Os fenos foram confeccionados A) por processo de desidratação natural, ao ar livre em área ensolarada, e B) por desidratação artificial em fornos com aquecimento a lenha, sem controle de temperatura e de tempo de secagem. Os resultados das análises químicas e dos coeficientes de digestibilidade dos fenos, com base na percentagem de matéria seca, foram: 22,21 (57,09) e 23,12 (36,81) para proteína bruta; 24,89 (30,92) e 27,35 (33,70) para fibra bruta; 7,36 (38,41) e 6,83 (43,87) para extrato etéreo; 36,22 (48,52) e 32,88 (51,94) para extrato não nitrogenado; 88,34 (42,60) e 87,96 (41,03) para matéria seca; resultando em 43,12 e 41,54% para nutrientes digestíveis totais, para A e B, respectivamente. Houve diferença significativa entre: os coeficientes de digestibilidade da proteína bruta (P < 0,01); a proteína digestível (P < 0,01); e a fibra digestível (P < 0 05) Os consumos voluntários de matéria seca, proteína bruta e nutrientes digestíveis totais (g/kg W017) para A e B, respectivamente, foram 69,95 e 78,33; 15,82 e 18,47; e 30,14 e 32,74. ABSTRACT - An experiment with two-year old sheeps weighing 42 kg was conducted to evaluate the chemical composition, apparent digestibility and voluntary intake of cassava (Manihot esculenta Crantz), upper part hays, applying the conventional method of total feces collection in a complete randornized design with six replicates. The hays were compound by upper green third of cassava, variety 'Caravela', obtained from a 10 to 12-month old planting. There were two haymaking process: (A) dehydration through sunshine; and (B) dehidration through industrial furnace using firewood as heat source. The chemical analyses resulta of the hays and their related digestibility coefficients were: crude protein, 22.21 (57.09) and 23.12 (36.81); crude fiber, 24.89 (30.92) and 27.35 (33.70); ether extract, 7.36 (38.41) and 6.83 (43.87); nitrogen-free extract, 36.22 (48.52) and 32.88 (51.94); and, dry marter, 88.34 (42.60) and 87.96 (41.03), giving TDN values of 43.12 and 41.64 for A and B, respectively, on dry matter basis. There was significant difference between the digestibility coefficients of crude protein (P <0.01), the digestible protein (P <0.01) and the digestible fiber (P <0.05). The voluntary intakes of dry matter, crude protein and total digestible nutrients (g/kg W0.75 ) for A and B were: 69.95 and 78.33; 15.82 and 18.47; and 30.14 and 32.74, respectively.
650 $aCassava
650 $aChemical composition
650 $aDigestibility
650 $aNutritive value
650 $aVoluntary intake
650 $aComposição Química
650 $aDesidratação
650 $aDigestibilidade
650 $aFenação
650 $aMandioca
650 $aManihot Esculenta
650 $aNutriente
650 $aValor Nutritivo
653 $aCasualizacao completa
653 $aDehydration
700 1 $aLANGUIDEY, P. H.
773 $tPesquisa agropecuaria brasileira$gv.17, n.11, p.1679-1684, 1982.
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