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Registros recuperados: 46
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A deterministic simulation study of embryo marker-assisted selection for age at first calving in Nellore (Bos indicus) beef cattle Genet. Mol. Biol.
Rosa,Artur J.M.; Bijma,Piter; Oliveira,Henrique N.; Lôbo,Raysildo B.; van Arendonk,Johan A.M..
We used deterministic simulation of four alternative multiple ovulation and embryo manipulation (MOET) closed nucleus schemes to investigate the benefits of using marker-assisted selection (MAS) of Nellore (Bos indicus) beef cattle embryos prior to transplantation to reduce the age at first calving (AFC). We found that MAS resulted in increased genetic gain as compared to selection without AFC quantitative trait loci (AFC-QTL) information. With single-stage selection the genetic response (GR) increased as follows: GR = 0.68% when the AFC-QTL explained 0.02 of the AFC additive genetic variance (sigma2A); GR = 1.76% for AFC-QTL explaining 0.05 sigma2A; GR = 3.7% for AFC-QTL explaining 0.1 sigma2A; and GR = 55.76% for AFC-QTL explaining 0.95 sigma2A. At the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Age at first calving; Beef cattle; Marker-assisted selection; Pre-selection; Quantitative trait loci.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000400008
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AFLP mappings of quantitative trait loci (QTLs) for elongation ability in rice, Oryza sativa L. International Rice Research Institute
Posa, Grace Belinda T..
xvi, 91 leaves : ill. Thesis (M.S.) -- University of the Philippines at Los Baños,
Tipo: Thesis Palavras-chave: Amplified fragment length polymorphism; Rice; Chromosome mapping; Quantitative trait loci; Stem elongation; Plant growth.
Ano: 1998 URL: http://hdl.handle.net/123456789/545
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Analysis of environmental effects on expression of root penetration QTLs in upland rice International Rice Research Institute
Cairns, Jill Elizabeth.
xxv, 220 p. : ill. Thesis (Ph.D.) -- University of Aberdeen
Tipo: Thesis Palavras-chave: Rice; Environment; Root systems; Quantitative trait loci; Genotype-environment interaction; Drought tolerance; Highlands; Upland rice.
Ano: 2003 URL: http://hdl.handle.net/123456789/411
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Analytical and numerical comparisons of two methods of estimation of additive × additive interaction of QTL effects Scientia Agricola
Bocianowski,Jan.
Epistasis (additive × additive interaction) plays an important role in the genetic architecture of complex traits. This study presents analytical and numerical comparisons of two methods of estimation of additive × additive interaction of QTL effects. In the first method, we observed only the plant phenotype, while in the second method we have additional information from the molecular markers observations. In this study, two data sets were analyzed: i) 150 barley (Hordeum vulgare L.) doubled-haploid lines derived from the cross Steptoe × Morex and ii) 145 doubled-haploid lines of barley obtained from the cross Harrington × TR306. In total, 153 sets of observations were analyzed. The additive × additive interaction effect calculated on the basis of the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nonallelic interaction effect; Doubled haploid lines; Quantitative trait loci.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162012000400002
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Candidate genes for male and female reproductive traits in Canchim beef cattle. Repositório Alice
BUZANSKAS, M. E.; GROSSI, D. do A.; VENTURA, R. V.; SCHENKEL, F. S.; CHUD, T. C. S.; STAFUZZA, N. B.; ROLA, L. D.; MEIRELLES, S. L. C.; MOKRY, F. B.; MUDADU, M. de A.; HIGA, R. H.; SILVA, M. V. G. B.; ALENCAR, M. M. de; REGITANO, L. C. de A.; MUNARI, D. P..
Background: Beef cattle breeding programs in Brazil have placed greater emphasis on the genomic study of reproductive traits of males and females due to their economic importance. In this study, genome-wide associations were assessed for scrotal circumference at 210 d of age, scrotal circumference at 420 d of age, age at first calving, and age at second calving, in Canchim beef cattle. Data quality control was conducted resulting in 672,778 SNPs and 392 animals. Results: Associated SNPs were observed for scrotal circumference at 420 d of age (435 SNPs), followed by scrotal circumference at 210 d of age (12 SNPs), age at first calving (six SNPs), and age at second calving (four SNPs). We investigated whether significant SNPs were within genic or surrounding...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Polimorfismo de nucleotídeo único; Gado de corte; Gado Canchim; Beef cattle; Genome-wide association study; Single nucleotide polymorphism; Quantitative trait loci.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1074373
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Caracterização genotípica de linhagem de corte e postura empregando chip de 60 k em região pleiotrópica do cromossomo 1. Repositório Alice
ROSÁRIO, M. F. do; ATTILIO, D. B.; BRASSALOTI, R. A.; LEDUR, M. C.; COUTINHO, L. L..
2013
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: QTL; SNPs; Genética; Linhagem; Frango de corte; Galinha para postura; Single nucleotide; Polymorphism; Quantitative trait loci; Laying Hens; Chicken breeds.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/968936
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Co-localization of QTL for root traits under low phosphorus availability with candidate genes homologues to PSTOL1 in maize. Repositório Alice
AZEVEDO, G. C.; CHEAVEGATTI-GIANOTTO, A.; NEGRI, B. F.; HUFNAGEL, B.; LANA, U. G. P.; SILVA, L. C.; MAGALHAES, J. V.; GARCIA, A. A. F.; SOUSA, S. M. de; GUIMARAES, C. T..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Milho; Gene; Fósforo; Quantitative trait loci.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/977225
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Detection of quantitative trait loci for leaf chlorophyll content at maximum tillering International Rice Research Institute
Dong, Y. J.; Ogawa, T.; Lin, D. Z.; Kamiunten, H.; Terao, H.; Matsuo, H..
p.16-17
Palavras-chave: Quantitative trait loci; Leaves; Chlorophyll; Tillering; Inbred rice; Alleles; Segregation; Gene mapping; Genetic markers.
Ano: 2005 URL: http://hdl.handle.net/123456789/1095
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Dissecting the genetic basis of wheat blast resistance in the Brazilian wheat cultivar BR 18-Terena. Repositório Alice
GOGGARD, R.; STEED, A.; CHINOY, C.; FERREIRA, J. R.; SCHEEREN, P. L.; MACIEL, J. L. N.; CAIERAO, E.; TORRES, G. A. M.; CONSOLI, L.; SANTANA, F. M.; FERNANDES, J. M. C.; SIMMONDS, J.; UAUY, C.; COCKRAM, J.; NICHOLSON, P..
Background: Wheat blast, caused by Magnaporthe oryzae Triticum (MoT) pathotype, is a global threat to wheat (Triticum aestivum L.) production. Few blast resistance (R) genes have been identified to date, therefore assessing potential sources of resistance in wheat is important. The Brazilian wheat cultivar BR 18-Terena is considered one of the best sources of resistance to blast and has been widely used in Brazilian breeding programmes, however the underlying genetics of this resistance are unknown. Results: BR 18-Terena was used as the common parent in the development of two recombinant inbred line (RIL) F6 populations with the Brazilian cultivars Anahuac 75 and BRS 179. Populations were phenotyped for resistance at the seedling and heading stage using...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Wheat blast; Seedling resistance; Head resistance; Single nucleotide polymorphism (SNP) genotyping; Triticum Aestivum; Magnaporthe oryzae; Quantitative trait loci; Genotyping.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124870
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Gene mapping and quantitative trait loci analysis of flood tolerance in rice (Oryza sativa L.) International Rice Research Institute
Sripongpankul, Krishnapong.
xxi, 137 l. : ill. Thesis (Ph.D.) -- University of the Philippines at Los Baños
Tipo: Thesis Palavras-chave: Chromosome mapping; Rice; Plant genetics; Flooding tolerance; Quantitative trait loci.
Ano: 1998 URL: http://hdl.handle.net/123456789/542
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Genetic linkage map of Phaseolus vulgaris and identification of QTLs responsible for resistance to Xanthomonas axonopodis pv. phaseoli Trop. Plant Pathol.
Santos,Amaury S.; Bressan-Smith,Ricardo E.; Pereira,Messias G.; Rodrigues,Rosana; Ferreira,Claudia F..
Common bean (Phaseolus vulgaris) cultivars with a high degree of resistance to Xanthomonas axonopodis pv. phaseoli (Xap) are not available in Brazil. Despite many studies, a low degree of resistance to Xap continues to exist due to its complex genetic inheritance, which is not well known. The objectives of this research were to complement a common bean genetic map based on the cross between a susceptible genotype 'HAB-52' and a resistant genotype 'BAC-6', and to map and analyze genomic regions (quantitative trait loci – QTLs) related to Xap resistance. Eleven linkage groups were determined using 143 RAPD markers, covering 1,234.5 cM of the genome. This map was used to detect QTLs associated with Xap resistance on leaves and pods. The averages of disease...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Common bean; Quantitative trait loci; Common bacterial blight; Disease resistance.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582003000100001
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Genome-wide association study for femur-related traits in broilers. Repositório Alice
ONO, R. K.; IBELLI, A. M. G.; CANTAO, M. E.; PEIXOTO, J. de O.; SOLLERO, B. P.; SUREK, D.; MOREIRA, G. C. M.; GODOY, T. F.; COUTINHO, L. L.; LEDUR, M. C..
Abstract: Due to the intense selection for heavier and faster growing broilers, metabolic disorders such as skeletal problems became a worldwide concern. Advances in genome-wide association study (GWAS) methodologies increased the possibility of elucidating the genetic architecture controlling bone integrity traits. Therefore, the aim of this study was to perform a GWAS to identify potential genetic markers and candidate genes associated with femur traits in a paternal broiler line developed by Embrapa. To this, three femur bone-related traits were evaluated in 1,433 chickens: dry matter (FDM), ash content (FAC) and breaking strength (FBS). Chickens were genotyped using the 600K Affymetrix® Axiom® HD panel. A total of 16 regions associated to FAC, being a...
Tipo: Artigo em anais de congresso (ALICE) Palavras-chave: Integridade óssea; Características do fêmur; Associação genômica; QTLs; Melhoramento Genético Animal; Frango de Corte; Formação Óssea; Fêmur; Animal genetic resources; Broiler chickens; Bone metabolism; Quantitative trait loci.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1093205
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Identification of mutations in a QTL region on chromosome 3 associated with fatness in chickens. Repositório Alice
MOREIRA, G. C. M.; GODOY, T. F.; BOSCHIERO, C.; LEDUR, M. C.; GASPARIN, G.; ANDRADE, S. C. da S.; PADUAN, M.; COUTINHO, L. L..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Mutations segregating; QTL; Galinha; Melhoramento genético animal; Chickens; Quantitative trait loci.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/971381
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Identification of polymorphisms associated with production traits on chicken (Gallus gallus) chromosome 4. Repositório Alice
PÉRTILLE, F.; ZANELLA, R.; FELÍCIO, A. M.; LEDUR, M. C.; PEIXOTO, J. de O.; COUTINHO, L. L..
Genetic selection for production traits has resulted in a rapid improvement in animal performance and development. Previous studies have mapped quantitative trait loci for body weight at 35 and 41 days, and drum and thigh yield, onto chicken chromosome 4. We investigated this region for single nucleotide polymorphisms and their associations with important economic traits. Three positional candidate genes were studied: KLF3 (Krüeppel-like factor 3), SLIT2 (Slit homolog 2), and PPARGC1A (peroxisome proliferator-activated receptor gamma, coactivator 1 alpha). Fragment sequencing of these genes was conducted in 11 F1 animals, and one polymorphism in each gene was selected and genotyped in an F2 population (N = 276) and a paternal broiler line TT (N = 840)....
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Genetica animal; Genoma; Polimorfismo genético; Ave doméstica; Polymorphism; Gallus gallus; Genetic polymorphism; Quantitative trait loci; Broiler.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1025835
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Identification of polymorphisms in a QTL region on chicken chromosome 2 associated with muscle deposition. Repositório Alice
GODOY, T. F.; MOREIRA, G. C. M.; BOSCHIERO, C.; LEDUR, M. C.; GASPARIN, G.; ANDRADE, S. C. da S.; PADUAN, M.; COUTINHO, L. L..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Galinha; Polimorfismo genético; Chickens; Genetic polymorphism; Quantitative trait loci.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/971356
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Identification of QTLS associated with percentage of dry matter and midrib color in sorghum. Repositório Alice
PINTO, M. de O.; ROCHA, D. D. D.; SILVA, L. F.; BERNARDINO, K. C.; PASTINA, M. M.; MAGALHAES, J. V. de; SCHAFFERT, R. E..
bitstream/item/176612/1/Identification-QTLS.pdf
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Sorghum Bicolor; Gene; Quantitative trait loci.
Ano: 2017 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1091327
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Identification of QTLs controlling yield traits in sweet sorghum using genotyping by sequencing. Repositório Alice
PEREIRA, G. S.; SOUZA, V. F.; PARRELLA, R. A. da C.; DAMASCENO, C. M. B.; SIMEONE, M. L. F.; SCHAFFERT, R. E.; BRACONNIER, S.; PASTINA, M. M.; GARCIA, A. A. F.; MAGALHAES, J. V..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Genética; Sorgo; Quantitative trait loci; Sorghum bicolor.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/974195
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Identification of quantitative trait loci (QTL) and genetic networks underlying drought tolerance using introgression and pyramiding lines of rice (Oryza sativa L.) International Rice Research Institute
Yunzhu, Jiang.
xii, 145 l. : ill. Thesis (Ph.D.) -- University of the Philippines
Tipo: Thesis Palavras-chave: Rice; Plant genetics; Quantitative trait loci; Drought tolerance.
Ano: 2006 URL: http://hdl.handle.net/10269/128
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Inbreeding effect and genotyping strategies for genomic selection in simulated data. Repositório Alice
NASCIMENTO, G. B.; VENTURA, R. V.; LEDUR, M. C.; SAVEGNAGO, R. P.; SENO, L. de O.; MUNARI, D. P..
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: SNPs; Genética; Seleção genotipa; Endogamia; Melhoramento genético animal; Inbreeding; Genetics markers; Quantitative trait loci; Genomic analysis.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/971202
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Informativeness of SNPs on the genome of the Brazilian chicken broiler and layer lines using 60k Illumina BeadChip. Repositório Alice
ATTÍLIO, D. B.; BRASSALOTI, R. A.; LEDUR, M. C.; COUTINHO, L. L.; ROSÁRIO, M. F. do.
2013
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: SNPs; Ave; Melhoramento genético animal; Marcador molecular; Poultry; Gene sequences; Genetics markers; Quantitative trait loci.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/971189
Registros recuperados: 46
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