| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
30/06/2016 |
|
Data da última atualização: |
30/06/2016 |
|
Tipo da produção científica: |
Resumo em Anais de Congresso |
|
Autoria: |
RIOS, E.; RESENDE, M.; KIRST, M.; RESENDE, M. D. V. de; ALMEIDA FILHO, J. E. de; MUNOZ, P. |
|
Afiliação: |
Esteban Rios, University of Florida; Marcio Resende, RAPiD Genomics LLC; Matias Kirst, UFPR; MARCOS DEON VILELA DE RESENDE, CNPF; Janeo E. de Almeida Filho, UFV; Patricio Munoz, UFPR. |
|
Título: |
Predictive ability of Genomic Estimated Family Values (GEFV). |
|
Ano de publicação: |
2016 |
|
Fonte/Imprenta: |
In: PLANT & ANIMAL GENOME CONFERENCE, 24., 2016, San Diego. [Abstracts...]. San Diego: [s.n.], 2016. Pôster P1186. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Genomic selection (GS) has been used to compute genomic estimated breeding values (GEBV) of individuals; however, it has only been applied to animal and major plant crops due to high costs. Besides, breeding and selection is performed at the family level in some crops. We aimed to study the implementation of genome-wide family selection (GWFS) in two loblolly pine (Pinus taeda L.) populations: i) the breeding population CCLONES composed of 63 families (5-20 individuals per family), phenotyped for four traits (stem diameter, stem rust susceptibility, tree stiffness and lignin content) and genotyped using an Illumina Infinium assay with 4740 polymorphic SNPs, and ii) a simulated population that reproduced the same pedigree as CCLONES, 5000 polymorphic loci and two traits (oligogenic and polygenic). In both populations, phenotypic and genotypic data was pooled at the family level in silico. Phenotypes were averaged across replicates for all the individuals and allele frequency was computed for each SNP. Marker effects were estimated at the individual (GEBV) and family (GEFV) levels with Bayes-B using the package BGLR in R and models were validated using 10-fold cross validations. Predicted ability, computed by correlating phenotypes with GEBV and GEFV, was always higher for GEFV in both populations, even after standardizing GEFV predictions to be comparable to GEBV. Results revealed great potential for using GWFS in breeding programs that select families, such as most outbreeding forage species. A significant drop in genotyping costs as one sample per family is needed would allow the application of GWFS in minor crops. MenosGenomic selection (GS) has been used to compute genomic estimated breeding values (GEBV) of individuals; however, it has only been applied to animal and major plant crops due to high costs. Besides, breeding and selection is performed at the family level in some crops. We aimed to study the implementation of genome-wide family selection (GWFS) in two loblolly pine (Pinus taeda L.) populations: i) the breeding population CCLONES composed of 63 families (5-20 individuals per family), phenotyped for four traits (stem diameter, stem rust susceptibility, tree stiffness and lignin content) and genotyped using an Illumina Infinium assay with 4740 polymorphic SNPs, and ii) a simulated population that reproduced the same pedigree as CCLONES, 5000 polymorphic loci and two traits (oligogenic and polygenic). In both populations, phenotypic and genotypic data was pooled at the family level in silico. Phenotypes were averaged across replicates for all the individuals and allele frequency was computed for each SNP. Marker effects were estimated at the individual (GEBV) and family (GEFV) levels with Bayes-B using the package BGLR in R and models were validated using 10-fold cross validations. Predicted ability, computed by correlating phenotypes with GEBV and GEFV, was always higher for GEFV in both populations, even after standardizing GEFV predictions to be comparable to GEBV. Results revealed great potential for using GWFS in breeding programs that select families, such as most outbreedi... Mostrar Tudo |
|
Palavras-Chave: |
Melhoramento genético. |
|
Thesagro: |
Melhoramento vegetal; Pinus Taeda. |
|
Thesaurus Nal: |
Plant breeding. |
|
Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/144954/1/2016-M.Deon-IPAG-Predicty-Ability.pdf
|
|
Marc: |
LEADER 02338nam a2200217 a 4500
001 2048088
005 2016-06-30
008 2016 bl uuuu u00u1 u #d
100 1 $aRIOS, E.
245 $aPredictive ability of Genomic Estimated Family Values (GEFV).$h[electronic resource]
260 $aIn: PLANT & ANIMAL GENOME CONFERENCE, 24., 2016, San Diego. [Abstracts...]. San Diego: [s.n.], 2016. Pôster P1186.$c1186
520 $aGenomic selection (GS) has been used to compute genomic estimated breeding values (GEBV) of individuals; however, it has only been applied to animal and major plant crops due to high costs. Besides, breeding and selection is performed at the family level in some crops. We aimed to study the implementation of genome-wide family selection (GWFS) in two loblolly pine (Pinus taeda L.) populations: i) the breeding population CCLONES composed of 63 families (5-20 individuals per family), phenotyped for four traits (stem diameter, stem rust susceptibility, tree stiffness and lignin content) and genotyped using an Illumina Infinium assay with 4740 polymorphic SNPs, and ii) a simulated population that reproduced the same pedigree as CCLONES, 5000 polymorphic loci and two traits (oligogenic and polygenic). In both populations, phenotypic and genotypic data was pooled at the family level in silico. Phenotypes were averaged across replicates for all the individuals and allele frequency was computed for each SNP. Marker effects were estimated at the individual (GEBV) and family (GEFV) levels with Bayes-B using the package BGLR in R and models were validated using 10-fold cross validations. Predicted ability, computed by correlating phenotypes with GEBV and GEFV, was always higher for GEFV in both populations, even after standardizing GEFV predictions to be comparable to GEBV. Results revealed great potential for using GWFS in breeding programs that select families, such as most outbreeding forage species. A significant drop in genotyping costs as one sample per family is needed would allow the application of GWFS in minor crops.
650 $aPlant breeding
650 $aMelhoramento vegetal
650 $aPinus Taeda
653 $aMelhoramento genético
700 1 $aRESENDE, M.
700 1 $aKIRST, M.
700 1 $aRESENDE, M. D. V. de
700 1 $aALMEIDA FILHO, J. E. de
700 1 $aMUNOZ, P.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Unidades Centrais. |
|
Data corrente: |
01/11/2020 |
|
Data da última atualização: |
01/11/2020 |
|
Autoria: |
FONTES, P. T. N.; SOUSA, B. M. de L.; OLIVEIRA JÚNIOR, L. F. G. de; FAGUNDES, J. L.; BACKES, A. A.; NASCIMENTO, G. A.; FLORÊNCIO, R. S. R.; SANTOS, A. L. H. dos. |
|
Afiliação: |
PRYANKA THUYRA NASCIMENTO FONTES, Universidade Federal de Sergipe, Departamento de Engenharia Agronômica; BRÁULIO MAIA de LANA SOUSA, Universidade Federal de Sergipe, Departamento de Zootecnia; LUIZ FERNANDO GANASSALI de OLIVEIRA JÚNIOR, Universidade Federal de Sergipe, Departamento de Engenharia Agronômica; JAILSON LARA FAGUNDES, Universidade Federal de Sergipe, Departamento de Zootecnia; ALFREDO ACOSTA BACKES, Universidade Federal de Sergipe, Departamento de Zootecnia; GILMARTINS ALVES NASCIMENTO, Universidade Federal de Sergipe, Departamento de Zootecnia; RAFAELA STEFANNY RODRIGUES FLORÊNCIO, Universidade Federal de Sergipe, Departamento de Zootecnia; ANNA LUIZA HORA dos SANTOS, Universidade Federal de Sergipe, Departamento de Zootecnia. |
|
Título: |
Population dynamics and structural characteristics of 'Survenola' digit grass subjected to intermittent defoliation strategies. |
|
Ano de publicação: |
2020 |
|
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, v. 55, e01602, 2020. |
|
DOI: |
https://doi. org/10.1590/S1678-3921.pab2020.v55.01602 |
|
Idioma: |
Inglês |
|
Notas: |
Título em português: Dinâmica da população e características estruturais do capim 'Survenola' submetido a estratégias de desfolhação intermitente. |
|
Conteúdo: |
Abstract - The objective of this work was to evaluate the effect of defoliation strategies and insolation periods on the population dynamics and structural characteristics of Digitaria eriantha 'Survenola'. The following four defoliation strategies (DSs) were evaluated: 40/10, 40/20, 50/10, and 50/20 cm (that is, 40 and 50 cm pre-defoliation height, and 10 and 20 cm post-defoliation height), under high- (September to March) and low- (April to August) insolation periods. An experimental randomized complete block design was carried out with five replicates. The accumulation of forage and leaf blade was higher when using the DS 40/20 cm in the higher insolation period. DSs 40/10, 50/10, and 50/20 cm resulted in a higher stem accumulation than DS 40/20 cm. 'Survenola' grass showed a higher appearance rate for basal and aerial tillers using the 40/10 and 40/20 cm strategies, respectively, during the lower insolation period. Greater tiller densities (basal, aerial, and total) were observed in the DS 40/20 cm in the higher insolation period. DS 40/20 cm resulted in a greater tiller renewal. In the DS 40/20 cm, 'Survenola' grass shows the greatest number of defoliation cycles, the highest density of tillers, and the greatest accumulation of forage and leaf blade. Resumo - O objetivo deste trabalho foi avaliar o efeito de estratégias de desfolhação e períodos de insolação sobre a dinâmica populacional de perfilhos e as características estruturais de Digitaria eriantha 'Survenola'. Avaliaram?se as seguintes quatro estratégias de desfolhação (EDs), conforme: 40/10, 40/20, 50/10 e 50/20 cm, ou seja, 40 e 50 cm de altura pré-desfolhação, e 10 e 20 cm de altura pós-desfolhação, nos períodos de alta (setembro a março) e baixa insolação (abril a agosto). O delineamento experimental foi realizado em blocos ao acaso, com cinco repetições. Os acúmulos de forragem e lâmina foliar foram maiores quando se utilizou a ED 40/20 cm, no período de maior insolação. As EDs 40/10, 50/10 e 50/20 cm resultaram em maior acúmulo de colmo do que a ED 40/20 cm. O capim 'Survenola' mostrou maior taxa de aparecimento de perfilhos basais e aéreos, quando se utilizaram as estratégias 40/10 e 40/20 cm, respectivamente, durante o período de menor insolação. Maiores densidades de perfilhos (basais, aéreos e totais) foram observadas na ED 40/20 cm, no período de maior insolação. A ED 40/20 cm obteve maior renovação de perfilhos. Na ED 40/20 cm, o capim 'Survenola' apresenta o maior número de ciclos de desfolhação, a maior densidade populacional de perfilhos e o maior acúmulo de forragem e lâmina foliar. MenosAbstract - The objective of this work was to evaluate the effect of defoliation strategies and insolation periods on the population dynamics and structural characteristics of Digitaria eriantha 'Survenola'. The following four defoliation strategies (DSs) were evaluated: 40/10, 40/20, 50/10, and 50/20 cm (that is, 40 and 50 cm pre-defoliation height, and 10 and 20 cm post-defoliation height), under high- (September to March) and low- (April to August) insolation periods. An experimental randomized complete block design was carried out with five replicates. The accumulation of forage and leaf blade was higher when using the DS 40/20 cm in the higher insolation period. DSs 40/10, 50/10, and 50/20 cm resulted in a higher stem accumulation than DS 40/20 cm. 'Survenola' grass showed a higher appearance rate for basal and aerial tillers using the 40/10 and 40/20 cm strategies, respectively, during the lower insolation period. Greater tiller densities (basal, aerial, and total) were observed in the DS 40/20 cm in the higher insolation period. DS 40/20 cm resulted in a greater tiller renewal. In the DS 40/20 cm, 'Survenola' grass shows the greatest number of defoliation cycles, the highest density of tillers, and the greatest accumulation of forage and leaf blade. Resumo - O objetivo deste trabalho foi avaliar o efeito de estratégias de desfolhação e períodos de insolação sobre a dinâmica populacional de perfilhos e as características estruturais de Digitaria eriantha 'Survenola'. Av... Mostrar Tudo |
|
Thesagro: |
Capim; Colmo; Forragem. |
|
Thesaurus NAL: |
Digitaria eriantha; Grasses. |
|
Categoria do assunto: |
-- |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217373/1/Population-dynamics-structural.pdf
|
|
Marc: |
LEADER 03709naa a2200289 a 4500
001 2126188
005 2020-11-01
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi. org/10.1590/S1678-3921.pab2020.v55.01602$2DOI
100 1 $aFONTES, P. T. N.
245 $aPopulation dynamics and structural characteristics of 'Survenola' digit grass subjected to intermittent defoliation strategies.$h[electronic resource]
260 $c2020
500 $aTítulo em português: Dinâmica da população e características estruturais do capim 'Survenola' submetido a estratégias de desfolhação intermitente.
520 $aAbstract - The objective of this work was to evaluate the effect of defoliation strategies and insolation periods on the population dynamics and structural characteristics of Digitaria eriantha 'Survenola'. The following four defoliation strategies (DSs) were evaluated: 40/10, 40/20, 50/10, and 50/20 cm (that is, 40 and 50 cm pre-defoliation height, and 10 and 20 cm post-defoliation height), under high- (September to March) and low- (April to August) insolation periods. An experimental randomized complete block design was carried out with five replicates. The accumulation of forage and leaf blade was higher when using the DS 40/20 cm in the higher insolation period. DSs 40/10, 50/10, and 50/20 cm resulted in a higher stem accumulation than DS 40/20 cm. 'Survenola' grass showed a higher appearance rate for basal and aerial tillers using the 40/10 and 40/20 cm strategies, respectively, during the lower insolation period. Greater tiller densities (basal, aerial, and total) were observed in the DS 40/20 cm in the higher insolation period. DS 40/20 cm resulted in a greater tiller renewal. In the DS 40/20 cm, 'Survenola' grass shows the greatest number of defoliation cycles, the highest density of tillers, and the greatest accumulation of forage and leaf blade. Resumo - O objetivo deste trabalho foi avaliar o efeito de estratégias de desfolhação e períodos de insolação sobre a dinâmica populacional de perfilhos e as características estruturais de Digitaria eriantha 'Survenola'. Avaliaram?se as seguintes quatro estratégias de desfolhação (EDs), conforme: 40/10, 40/20, 50/10 e 50/20 cm, ou seja, 40 e 50 cm de altura pré-desfolhação, e 10 e 20 cm de altura pós-desfolhação, nos períodos de alta (setembro a março) e baixa insolação (abril a agosto). O delineamento experimental foi realizado em blocos ao acaso, com cinco repetições. Os acúmulos de forragem e lâmina foliar foram maiores quando se utilizou a ED 40/20 cm, no período de maior insolação. As EDs 40/10, 50/10 e 50/20 cm resultaram em maior acúmulo de colmo do que a ED 40/20 cm. O capim 'Survenola' mostrou maior taxa de aparecimento de perfilhos basais e aéreos, quando se utilizaram as estratégias 40/10 e 40/20 cm, respectivamente, durante o período de menor insolação. Maiores densidades de perfilhos (basais, aéreos e totais) foram observadas na ED 40/20 cm, no período de maior insolação. A ED 40/20 cm obteve maior renovação de perfilhos. Na ED 40/20 cm, o capim 'Survenola' apresenta o maior número de ciclos de desfolhação, a maior densidade populacional de perfilhos e o maior acúmulo de forragem e lâmina foliar.
650 $aDigitaria eriantha
650 $aGrasses
650 $aCapim
650 $aColmo
650 $aForragem
700 1 $aSOUSA, B. M. de L.
700 1 $aOLIVEIRA JÚNIOR, L. F. G. de
700 1 $aFAGUNDES, J. L.
700 1 $aBACKES, A. A.
700 1 $aNASCIMENTO, G. A.
700 1 $aFLORÊNCIO, R. S. R.
700 1 $aSANTOS, A. L. H. dos
773 $tPesquisa Agropecuária Brasileira$gv. 55, e01602, 2020.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Unidades Centrais (AI-SEDE) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
