|
|
Registro Completo |
Biblioteca(s): |
Embrapa Cerrados; Embrapa Gado de Corte. |
Data corrente: |
13/12/2023 |
Data da última atualização: |
18/12/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
MARTINS, F. B.; AONO, A. H.; MORAES, A. da C. L.; FERREIRA, R. C. U.; VILELA, M. de M.; PESSOA FILHO, M. A. C. de P.; RODRIGUES-MOTTA, M.; SIMEÃO, R. M.; SOUZA, A. P. de. |
Afiliação: |
FELIPE BITENCOURT MARTINS, UNIVERSIDADE DE CAMPINAS; ALEXANDRE HILD AONO, UNIVERSIDADE DE CAMPINAS; ALINE DA COSTA LIMA MORAES, UNIVERSIDADE DE CAMPINAS; REBECCA CAROLINE ULBRICHT FERREIRA, UNIVERSIDADE DE CAMPINAS; MARIANE DE MENDONCA VILELA, CNPGC; MARCO AURÉLIO CALDAS DE PINHO PESSO, CPAC; MARIANA RODRIGUES-MOTTA, UNIVERSIDADE DE CAMPINAS; ROSANGELA MARIA SIMEAO, CNPGC; ANETE PEREIRA DE SOUZA, UNIVERSIDADE DE CAMPINAS. |
Título: |
Genome-wide family prediction unveils molecular mechanisms underlying the regulation of agronomic traits in Urochloa ruziziensis. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Frontiers in Plant Science, v. 14, 2023. |
DOI: |
https://doi.org/10.3389/fpls.2023.1303417 |
Idioma: |
Inglês |
Notas: |
Na publicação: Marco Pessoa-Filho. |
Conteúdo: |
Tropical forage grasses, particularly those belonging to the Urochloa genus, play a crucial role in cattle production and serve as the main food source for animals in tropical and subtropical regions. The majority of these species are apomictic and tetraploid, highlighting the significance of U. ruziziensis, a sexual diploid species that can be tetraploidized for use in interspecific crosses with apomictic species. As a means to support breeding programs, our study investigates the feasibility of genome-wide family prediction in U. ruziziensis families to predict agronomic traits. Fifty half-sibling families were assessed for green matter yield, dry matter yield, regrowth capacity, leaf dry matter, and stem dry matter across different clippings established in contrasting seasons with varying available water capacity. Genotyping was performed using a genotyping-by-sequencing approach based on DNA samples from family pools. In addition to conventional genomic prediction methods, machine learning and feature selection algorithms were employed to reduce the necessary number of markers for prediction and enhance predictive accuracy across phenotypes. To explore the regulation of agronomic traits, our study evaluated the significance of selected markers for prediction using a tree-based approach, potentially linking these regions to quantitative trait loci (QTLs). In a multiomic approach, genes from the species transcriptome were mapped and correlated to those markers. A gene coexpression network was modeled with gene expression estimates from a diverse set of U. ruziziensis genotypes, enabling a comprehensive investigation of molecular mechanisms associated with these regions. The heritabilities of the evaluated traits ranged from 0.44 to 0.92. A total of 28,106 filtered SNPs were used to predict phenotypic measurements, achieving a mean predictive ability of 0.762. By employing feature selection techniques, we could reduce the dimensionality of SNP datasets, revealing potential genotype-phenotype associations. The functional annotation of genes near these markers revealed associations with auxin transport and biosynthesis of lignin, flavonol, and folic acid. Further exploration with the gene coexpression network uncovered associations with DNA metabolism, stress response, and circadian rhythm. These genes and regions represent important targets for expanding our understanding of the metabolic regulation of agronomic traits and offer valuable insights applicable to species breeding. Our work represents an innovative contribution to molecular breeding techniques for tropical forages, presenting a viable marker-assisted breeding approach and identifying target regions for future molecular studies on these agronomic traits. MenosTropical forage grasses, particularly those belonging to the Urochloa genus, play a crucial role in cattle production and serve as the main food source for animals in tropical and subtropical regions. The majority of these species are apomictic and tetraploid, highlighting the significance of U. ruziziensis, a sexual diploid species that can be tetraploidized for use in interspecific crosses with apomictic species. As a means to support breeding programs, our study investigates the feasibility of genome-wide family prediction in U. ruziziensis families to predict agronomic traits. Fifty half-sibling families were assessed for green matter yield, dry matter yield, regrowth capacity, leaf dry matter, and stem dry matter across different clippings established in contrasting seasons with varying available water capacity. Genotyping was performed using a genotyping-by-sequencing approach based on DNA samples from family pools. In addition to conventional genomic prediction methods, machine learning and feature selection algorithms were employed to reduce the necessary number of markers for prediction and enhance predictive accuracy across phenotypes. To explore the regulation of agronomic traits, our study evaluated the significance of selected markers for prediction using a tree-based approach, potentially linking these regions to quantitative trait loci (QTLs). In a multiomic approach, genes from the species transcriptome were mapped and correlated to those markers. A gene coex... Mostrar Tudo |
Palavras-Chave: |
Feature selection; Gene coexpression networks; Genomic prediction; Machine learning; Major importance markers; RNA-Seq. |
Thesaurus Nal: |
Forage grasses. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1159688/1/Genome-wide-family-prediction-2023.pdf
|
Marc: |
LEADER 03815naa a2200325 a 4500 001 2159688 005 2023-12-18 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.3389/fpls.2023.1303417$2DOI 100 1 $aMARTINS, F. B. 245 $aGenome-wide family prediction unveils molecular mechanisms underlying the regulation of agronomic traits in Urochloa ruziziensis.$h[electronic resource] 260 $c2023 500 $aNa publicação: Marco Pessoa-Filho. 520 $aTropical forage grasses, particularly those belonging to the Urochloa genus, play a crucial role in cattle production and serve as the main food source for animals in tropical and subtropical regions. The majority of these species are apomictic and tetraploid, highlighting the significance of U. ruziziensis, a sexual diploid species that can be tetraploidized for use in interspecific crosses with apomictic species. As a means to support breeding programs, our study investigates the feasibility of genome-wide family prediction in U. ruziziensis families to predict agronomic traits. Fifty half-sibling families were assessed for green matter yield, dry matter yield, regrowth capacity, leaf dry matter, and stem dry matter across different clippings established in contrasting seasons with varying available water capacity. Genotyping was performed using a genotyping-by-sequencing approach based on DNA samples from family pools. In addition to conventional genomic prediction methods, machine learning and feature selection algorithms were employed to reduce the necessary number of markers for prediction and enhance predictive accuracy across phenotypes. To explore the regulation of agronomic traits, our study evaluated the significance of selected markers for prediction using a tree-based approach, potentially linking these regions to quantitative trait loci (QTLs). In a multiomic approach, genes from the species transcriptome were mapped and correlated to those markers. A gene coexpression network was modeled with gene expression estimates from a diverse set of U. ruziziensis genotypes, enabling a comprehensive investigation of molecular mechanisms associated with these regions. The heritabilities of the evaluated traits ranged from 0.44 to 0.92. A total of 28,106 filtered SNPs were used to predict phenotypic measurements, achieving a mean predictive ability of 0.762. By employing feature selection techniques, we could reduce the dimensionality of SNP datasets, revealing potential genotype-phenotype associations. The functional annotation of genes near these markers revealed associations with auxin transport and biosynthesis of lignin, flavonol, and folic acid. Further exploration with the gene coexpression network uncovered associations with DNA metabolism, stress response, and circadian rhythm. These genes and regions represent important targets for expanding our understanding of the metabolic regulation of agronomic traits and offer valuable insights applicable to species breeding. Our work represents an innovative contribution to molecular breeding techniques for tropical forages, presenting a viable marker-assisted breeding approach and identifying target regions for future molecular studies on these agronomic traits. 650 $aForage grasses 653 $aFeature selection 653 $aGene coexpression networks 653 $aGenomic prediction 653 $aMachine learning 653 $aMajor importance markers 653 $aRNA-Seq 700 1 $aAONO, A. H. 700 1 $aMORAES, A. da C. L. 700 1 $aFERREIRA, R. C. U. 700 1 $aVILELA, M. de M. 700 1 $aPESSOA FILHO, M. A. C. de P. 700 1 $aRODRIGUES-MOTTA, M. 700 1 $aSIMEÃO, R. M. 700 1 $aSOUZA, A. P. de 773 $tFrontiers in Plant Science$gv. 14, 2023.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Gado de Corte (CNPGC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Acre. |
Data corrente: |
04/01/2016 |
Data da última atualização: |
16/02/2023 |
Tipo da produção científica: |
Documentos |
Autoria: |
AMARAL, E. F. do; BARDALES, N. G.; OLIVEIRA, C. H. A. de; ARAÚJO, E. A. de; OLIVEIRA, T. K. de; FRANKE, I. L. |
Afiliação: |
EUFRAN FERREIRA DO AMARAL, CPAF-AC; NILSON GOMES BARDALES, BOLSISTA CNPq/FAPAC; CHARLES HENDERSON ALVES DE OLIVEIRA, INSTITUTO DE MUDANÇAS CLIMÁTICAS E REGULAÇÃO DE SERVIÇOS AMBIENTAIS; EDSON ALVES DE ARAÚJO, UNIVERSIDADE FEDERAL DO ACRE; TADARIO KAMEL DE OLIVEIRA, CPAF-AC; IDESIO LUIS FRANKE, CPAF-AC. |
Título: |
Compartilhando saberes: etnoclassificação pedológica dos Kaxinawá de Nova Olinda, Feijó, Estado do Acre, Brasil. |
Ano de publicação: |
2015 |
Fonte/Imprenta: |
Rio Branco, AC: Embrapa Acre, 2015. |
Páginas: |
44 p. |
Série: |
(Embrapa Acre. Documentos, 134). |
ISSN: |
0104-9046 |
Idioma: |
Português |
Conteúdo: |
Este trabalho objetivou estudar aspectos etnopedológicos na estratificação dos solos pelos kaxinawá da Terra Indígena Kaxinawá de Nova Olinda, fortalecendo o diálogo entre saberes e permitindo a percepção integrada de um sistema de classificação indígena. |
Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Conhecimento tradicional; Conocimiento tradicional; Ethnopedology; Etnopedologia; Feijó (AC); Povos indígenas; Pueblos indígenas; Terra Indígena Kaxinawá de Nova Olinda (TIKNO); Tipos estratificados de suelos; Uso de la tierra; Western Amazon. |
Thesagro: |
Estratigrafia; Solo; Uso da Terra. |
Thesaurus NAL: |
Indigenous knowledge; Indigenous peoples; Land use; Stratigraphic soil types. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/136498/1/25830.pdf
|
Marc: |
LEADER 01638nam a2200457 a 4500 001 2032772 005 2023-02-16 008 2015 bl uuuu u0uu1 u #d 022 $a0104-9046 100 1 $aAMARAL, E. F. do 245 $aCompartilhando saberes$betnoclassificação pedológica dos Kaxinawá de Nova Olinda, Feijó, Estado do Acre, Brasil.$h[electronic resource] 260 $aRio Branco, AC: Embrapa Acre$c2015 300 $a44 p. 490 $a(Embrapa Acre. Documentos, 134). 520 $aEste trabalho objetivou estudar aspectos etnopedológicos na estratificação dos solos pelos kaxinawá da Terra Indígena Kaxinawá de Nova Olinda, fortalecendo o diálogo entre saberes e permitindo a percepção integrada de um sistema de classificação indígena. 650 $aIndigenous knowledge 650 $aIndigenous peoples 650 $aLand use 650 $aStratigraphic soil types 650 $aEstratigrafia 650 $aSolo 650 $aUso da Terra 653 $aAcre 653 $aAmazonia Occidental 653 $aAmazônia Ocidental 653 $aConhecimento tradicional 653 $aConocimiento tradicional 653 $aEthnopedology 653 $aEtnopedologia 653 $aFeijó (AC) 653 $aPovos indígenas 653 $aPueblos indígenas 653 $aTerra Indígena Kaxinawá de Nova Olinda (TIKNO) 653 $aTipos estratificados de suelos 653 $aUso de la tierra 653 $aWestern Amazon 700 1 $aBARDALES, N. G. 700 1 $aOLIVEIRA, C. H. A. de 700 1 $aARAÚJO, E. A. de 700 1 $aOLIVEIRA, T. K. de 700 1 $aFRANKE, I. L.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Acre (CPAF-AC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|