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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental; Embrapa Florestas; Embrapa Meio-Norte; Embrapa Recursos Genéticos e Biotecnologia. |
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Data corrente: |
10/10/1997 |
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Data da última atualização: |
09/08/2007 |
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Autoria: |
PAULA, J. E. de; ALVES, J. L. de H. |
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Título: |
Madeiras nativas: anatomia, dendrologia, dendrometria, producao, uso. |
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Ano de publicação: |
1997 |
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Fonte/Imprenta: |
Brasilia: Fundacao Mokiti Okada, 1997. |
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Páginas: |
543p. |
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Idioma: |
Português |
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Conteúdo: |
A legislacao florestal; Agenda da producao primaria; Alelopatia; Ascelulas componentes da madeira; Tecnicas utilizadas no estudo anatomico da madeira; Biodiversidade; Caracterizacao anatomina da madeira para usos mais adequados; Causa da extrema pobreza nas zonas rurais no contexto da producao primaria; Dendrologia; Dendrometria; Especies ameacadas de extincao; Especies arboreas introduzidas; Especies ficariantes; Extrativismo florestal no contexto da biodiversidade; Feromonio; Fluorescencia da madeira; GAIA - planeta vivo; Historico da madeira; Madeira como geradora de mercado de trabalho e riqueza; Madeira para; industria naval, construcao civil, dormentes, geracao de energia, instrumentos musicais, laminado e compensado, moveis, producao de papel; O consumo brasileiro de lenha, carvao vegetal e papel ; Pragas e doencas; Reflotestamento, manejo e enriquecimento florestal. |
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Palavras-Chave: |
Anatomia da madeira; Brasil; Dendrology; Madeira nativa; Native wood; Plant; Produção da madeira; Uses; Uso; Wood production. |
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Thesagro: |
Anatomia; Biodiversidade; Dendrologia; Dendrometria; Espécie Nativa; Madeira; Produção. |
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Thesaurus Nal: |
biodiversity; Brazil; forest mensuration; wood; wood anatomy. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01865nam a2200397 a 4500
001 1297442
005 2007-08-09
008 1997 bl uuuu 00u1 u #d
100 1 $aPAULA, J. E. de
245 $aMadeiras nativas$banatomia, dendrologia, dendrometria, producao, uso.
260 $aBrasilia: Fundacao Mokiti Okada$c1997
300 $a543p.
520 $aA legislacao florestal; Agenda da producao primaria; Alelopatia; Ascelulas componentes da madeira; Tecnicas utilizadas no estudo anatomico da madeira; Biodiversidade; Caracterizacao anatomina da madeira para usos mais adequados; Causa da extrema pobreza nas zonas rurais no contexto da producao primaria; Dendrologia; Dendrometria; Especies ameacadas de extincao; Especies arboreas introduzidas; Especies ficariantes; Extrativismo florestal no contexto da biodiversidade; Feromonio; Fluorescencia da madeira; GAIA - planeta vivo; Historico da madeira; Madeira como geradora de mercado de trabalho e riqueza; Madeira para; industria naval, construcao civil, dormentes, geracao de energia, instrumentos musicais, laminado e compensado, moveis, producao de papel; O consumo brasileiro de lenha, carvao vegetal e papel ; Pragas e doencas; Reflotestamento, manejo e enriquecimento florestal.
650 $abiodiversity
650 $aBrazil
650 $aforest mensuration
650 $awood
650 $awood anatomy
650 $aAnatomia
650 $aBiodiversidade
650 $aDendrologia
650 $aDendrometria
650 $aEspécie Nativa
650 $aMadeira
650 $aProdução
653 $aAnatomia da madeira
653 $aBrasil
653 $aDendrology
653 $aMadeira nativa
653 $aNative wood
653 $aPlant
653 $aProdução da madeira
653 $aUses
653 $aUso
653 $aWood production
700 1 $aALVES, J. L. de H.
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Registro original: |
Embrapa Florestas (CNPF) |
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Origem |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Gado de Leite. |
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Data corrente: |
29/12/2019 |
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Data da última atualização: |
06/02/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
SILVA, A. A.; SILVA, F. F.; SILVA, D. A.; SILVA, H. T.; COSTA, C. N.; LOPES, P. S.; VERONEZE, R.; THOMPSON, G.; CARVALHEIRA, J. |
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Afiliação: |
ALESSANDRA ALVES SILVA; FABYANO FONSECA SILVA; DELVAN ALVES SILVA; HUGO TEIXEIRA SILVA; CLAUDIO NAPOLIS COSTA, CNPGL; PAULO SÁVIO LOPES; RENATA VERONEZE; GERTRUDE THOMPSON; JULIO CARVALHEIRA. |
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Título: |
Genotype imputation strategies for Portuguese Holstein cattle using different SNP panels. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Czech Journal of Animal Science, v. 64, n. 9, p. 377-386, 2019. |
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DOI: |
https://doi.org/10.17221/120/2019-CJAS |
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Idioma: |
Inglês |
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Conteúdo: |
Although several studies have investigated the factors affecting imputation accuracy, most of these studies involved a large number of genotyped animals. Thus, results from these studies cannot be directly applied to small populations, since the population structure affects imputation accuracy. In addition, factors affecting imputation accuracy may also be intensified in small populations. Therefore, we aimed to compare different imputation strate-gies for the Portuguese Holstein cattle population considering several commercially available single nucleotide poly-morphism (SNP) panels in a relatively small number of genotyped animals. Data from 1359 genotyped animals were used to evaluate imputation in 7 different scenarios. In the S1 to S6 scenarios, imputations were performed from LDv1, 50Kv1, 57K, 77K, HDv3 and Ax58K panels to 50Kv2 panel. In these scenarios, the bulls in 50Kv2 were divided into reference (352) and validation (101) populations based on the year of birth. In the S7 scenario, the validation population consisted of 566 cows genotyped with the Ax58K panel with theirgenotypes masked to LDv1. In general, all sample imputation accuracies were high with correlations ranging from 0.94 to 0.99 and concordance rate rang-ing from 92.59 to 98.18%. SNP-specific accuracy was consistent with that of sample imputation. S4 (40.32% of SNPs imputed) had higher accuracy than S2 and S3, both with less than 7.59% of SNPs imputed. Most probably, this was due to the high number of imputed SNPs with minor allele frequency (MAF) < 0.05 in S2 and S3 (by 18.43% and 16.06% higher than in S4, respectively). Therefore, for these two scenarios, MAF was more relevant than the panel density. These results suggest that genotype imputation using several commercially available SNP panels is feasible for the Portuguese national genomic evaluation. MenosAlthough several studies have investigated the factors affecting imputation accuracy, most of these studies involved a large number of genotyped animals. Thus, results from these studies cannot be directly applied to small populations, since the population structure affects imputation accuracy. In addition, factors affecting imputation accuracy may also be intensified in small populations. Therefore, we aimed to compare different imputation strate-gies for the Portuguese Holstein cattle population considering several commercially available single nucleotide poly-morphism (SNP) panels in a relatively small number of genotyped animals. Data from 1359 genotyped animals were used to evaluate imputation in 7 different scenarios. In the S1 to S6 scenarios, imputations were performed from LDv1, 50Kv1, 57K, 77K, HDv3 and Ax58K panels to 50Kv2 panel. In these scenarios, the bulls in 50Kv2 were divided into reference (352) and validation (101) populations based on the year of birth. In the S7 scenario, the validation population consisted of 566 cows genotyped with the Ax58K panel with theirgenotypes masked to LDv1. In general, all sample imputation accuracies were high with correlations ranging from 0.94 to 0.99 and concordance rate rang-ing from 92.59 to 98.18%. SNP-specific accuracy was consistent with that of sample imputation. S4 (40.32% of SNPs imputed) had higher accuracy than S2 and S3, both with less than 7.59% of SNPs imputed. Most probably, this was due to the high number of... Mostrar Tudo |
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Palavras-Chave: |
Genomic evaluation; Imputation accuracy. |
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Thesaurus NAL: |
Dairy cattle. |
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Categoria do assunto: |
G Melhoramento Genético |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/207907/1/120-2019-CJAS.pdf
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Marc: |
LEADER 02654naa a2200265 a 4500
001 2117818
005 2024-02-06
008 2019 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.17221/120/2019-CJAS$2DOI
100 1 $aSILVA, A. A.
245 $aGenotype imputation strategies for Portuguese Holstein cattle using different SNP panels.$h[electronic resource]
260 $c2019
520 $aAlthough several studies have investigated the factors affecting imputation accuracy, most of these studies involved a large number of genotyped animals. Thus, results from these studies cannot be directly applied to small populations, since the population structure affects imputation accuracy. In addition, factors affecting imputation accuracy may also be intensified in small populations. Therefore, we aimed to compare different imputation strate-gies for the Portuguese Holstein cattle population considering several commercially available single nucleotide poly-morphism (SNP) panels in a relatively small number of genotyped animals. Data from 1359 genotyped animals were used to evaluate imputation in 7 different scenarios. In the S1 to S6 scenarios, imputations were performed from LDv1, 50Kv1, 57K, 77K, HDv3 and Ax58K panels to 50Kv2 panel. In these scenarios, the bulls in 50Kv2 were divided into reference (352) and validation (101) populations based on the year of birth. In the S7 scenario, the validation population consisted of 566 cows genotyped with the Ax58K panel with theirgenotypes masked to LDv1. In general, all sample imputation accuracies were high with correlations ranging from 0.94 to 0.99 and concordance rate rang-ing from 92.59 to 98.18%. SNP-specific accuracy was consistent with that of sample imputation. S4 (40.32% of SNPs imputed) had higher accuracy than S2 and S3, both with less than 7.59% of SNPs imputed. Most probably, this was due to the high number of imputed SNPs with minor allele frequency (MAF) < 0.05 in S2 and S3 (by 18.43% and 16.06% higher than in S4, respectively). Therefore, for these two scenarios, MAF was more relevant than the panel density. These results suggest that genotype imputation using several commercially available SNP panels is feasible for the Portuguese national genomic evaluation.
650 $aDairy cattle
653 $aGenomic evaluation
653 $aImputation accuracy
700 1 $aSILVA, F. F.
700 1 $aSILVA, D. A.
700 1 $aSILVA, H. T.
700 1 $aCOSTA, C. N.
700 1 $aLOPES, P. S.
700 1 $aVERONEZE, R.
700 1 $aTHOMPSON, G.
700 1 $aCARVALHEIRA, J.
773 $tCzech Journal of Animal Science$gv. 64, n. 9, p. 377-386, 2019.
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Registro original: |
Embrapa Gado de Leite (CNPGL) |
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