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Grain Yield Differences of Soybean Cultivars Due to Solar Radiation Interception

American Journal of Plant Sciences 2017年第11期8卷 2795-2810页

作者： Mariele Müller Miroslava Rakocevic Andréia Caverzan Geraldo Chavarria Faculty of Agronomy and Veterinary Medicine Agronomy Post-Graduate Program University of Passo Fundo Passo Fundo Brazil embrapa agriculture informatics Campinas Brazil

Soybean [Glycine max (L.) Merr.] growth rate and grain yield are modified by the interception and solar radiation use efficiency. Thus, it is desirable that the most of plant photosynthetic structures intercepting solar radiation in order to have increment in carbon fixation and reflection on growth and yield. The goal of this study was to assess if soybean cultivars differ in grain yield in relation to solar radiation interception. Four soybean cultivars were evaluated at stages V6, V9, R2, R4, R6 and R8. To determine the photosynthetically active radiation interception by the canopy, the plants were divided into two parts (upper and lower strata). For grain yield components, the plants were divided into three parts (upper, middle and lower thirds). Of the photosynthetically active radiation intercepted by the vegetative canopy at the reproductive stages, the maximum observed intercept was 5.2% in the lower stratum of the plants. The number of infertile nodes increased in the lower third of plants due to low interception of solar radiation in this plant region. Thus, the soybean cultivars more efficient in intercepting photosynthetically active radiation inside the vegetative canopy showed higher grain yields.

关键词： Glycine Max Leaf Area Index Efficiency of Solar Radiation Interception Extinction Coefficient Solar Radiation Use Efficiency

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A survey of semantic web technology for agriculture

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Information Processing in agriculture 2019年第4期6卷 487-501页

作者： Brett Drury Robson Fernandes Maria-Fernanda Moura Alneu de Andrade Lopes ICMC University of Sa˜o Paulo-Av.Trabalhador Sa˜o-carlense400CentroSa˜o CarlosSP 13566-590Brazil embrapa agriculture informatics-Av.Dr.Andre´Tosello 209 CidadeUniversita´ria CampinasSPBrazil Scicrop Rua Henrique Monteiro90-14 Andar-PinheirosSa˜o PauloSPBrazil

Semantic web technologies have become a popular technique to apply meaning to unstructured *** have been infrequently applied to problems within the agricultural domain when compared to complementary *** this lack of application,agriculture has a large number of semantic resources that have been developed by large NGOs such as the Food and agriculture Organization(FAO).This survey is intended to motivate further research in the application of semantic web technologies for agricultural problems,by making available a self contained reference that provides:a comprehensive review of preexisting semantic resources and their construction methods,data interchange standards,as well as a survey of the current applications of semantic web technologies.

关键词： Knowledge Representation Semantic web technology Ontologies Linked data Survey

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Agrobacterium tumefaciens-mediated transformation of Eucalyptus urophylla clone BRS07-01

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Journal of Forestry Research 2020年第2期31卷 507-519页

作者： Gisela Manuela de Franca Bettencourt Carlos Ricardo Soccol Thais Salete Giovanella Luziane Franciscon Daiane Rigoni Kestring Isabel Rodrigues Gerhardt Juliana Degenhardt-Goldbach Department of Bioprocess Engineering and Biotechnology Federal University of ParanaAvenida Cel.Francisco Heraclito dos Santos210CuritibaParanaBrazil Department of Agronomy Federal University of ParanaRua dos Funcionarios1540CuritibaParanaBrazil embrapa Forestry Estrada da RibeiraKm 111ColomboParanaBrazil embrapa Agricultural informatics Av.Andre Tosello209CampinasSao PauloBrazil

Genetic transformation is becoming routine for engineering specific traits in important clones of recalcitrant species such as Eucalyptus;however,the efficiency is still low for most species,so many researchers still use seeds instead of clones as initial *** work aimed to develop a genetic transformation protocol,based on a highly efficient in vitro organogenesis protocol,for an Eucalyptus urophylla clone selected in our breeding *** growth regulators were evaluated for indirect organogenesis and *** a two-step protocol,the combination of callus induction media supplemented with 0.5 μM thidiazuron+0.5 μM naphthaleneacetic acid(NAA)and shoot induction media supplemented with 5.0 μM benzylaminopurine+1.0 lM NAA allowed up to 85.6%shoot formation with more shoots per explants when compared with other *** plants expressing the uidA gene were obtained using Agrobacterium tumefaciens and selected for kanamycin resistance.A RAPD analysis was used to check for somaclonal *** tests using 11 RAPD primers,we did not observe somaclonal variation in the in vitro stages evaluated.

关键词： Eucalyptus Genetic transformation In vitro regeneration Plant growth regulators Somaclonal variation

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Selection signatures in Canchim beef cattle

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Journal of Animal Science and Biotechnology 2017年第1期8卷 15-23页

作者： Ismael Urbinati Nedenia Bonvino Stafuzza Marcos Túlio Oliveira Tatiane Cristina Seleguim Chud Roberto Hiroshi Higa Luciana Correia de Almeida Regitano Maurício Mello de Alencar Marcos Eli Buzanskas Danísio Prado Munari Departamento de Ciencias Exatas Univ Estadual PaulistaFaculdade de Ciencias Agrairias e VeterinairiasjaboticabalSao Paulo 14884-900Brazil Departamento de Tecnologia UNESP-Univ Estadual PaulistaFaculdade de Ciencias Agrarias e VeterinariasJaboticabalSao Paulo 14884-900Brazil embrapa Agricultural informatics CampinasSao Paulo 13083-886Brazil embrapa Southeast Livestock Sao CarlosSao Paulo 13560-970Brazil

Background： Recent technological advances in genomics have allowed the genotyping of cattle through single nucleotide polymorphism（SNP） panels. High-density SNP panels possess greater genome coverage and are useful for the identification of conserved regions of the genome due to selection, known as selection signatures（SS）. The SS are detectable by different methods, such as the extended haplotype homozygosity（EHH）; and the integrated haplotype score（i HS）, which is derived from the EHH. The aim of this study was to identify SS regions in Canchim cattle（composite breed）, genotyped with high-density SNP ***： A total of 687,655 SNP markers and 396 samples remained for SS analysis after the genotype quality control. The i HS statistic for each marker was transformed into pi HS for better interpretation of the *** BTA5 and BTA14 showed pi HS 〉 5, with 39 and nine statistically significant SNPs（P 〈 0.00001）,respectively. For the candidate selection regions, i HS values were computed across the genome and averaged within non-overlapping windows of 500 Kb. We have identified genes that play an important role in metabolism,melanin biosynthesis（pigmentation）, and embryonic and bone ***： The observation of SS indicates that the selection processes performed in Canchim, as well as in the founder breeds（i.e. Charolais）, are maintaining specific genomic regions, particularly on BTA5 and BTA14. These selection signatures regions could be associated with Canchim characterization.

关键词： Composite breed Extended haplotype homozygosity Genomics Single nucleotide polymorphism

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DiagData： A Tool for Generation of Fuzzy Inference System

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Journal of Environmental Science and Engineering(B) 2012年第3期1卷 336-343页

作者： Silvia Maria Fonseca Silveira Massruha Raphael Fuini Riccioti Helano Povoas Lima Carlos Alberto AlvesMeira Laboratory of Computational Intelligence Embrapa Agricultural Informatics S6o Paulo State 13083-886 Brazil

In this paper, it described the architecture of a tool called DiagData. This tool aims to use a large amount of data and information in the field of plant disease diagnostic to generate a disease predictive system. In this approach, techniques of data mining are used to extract knowledge from existing data. The data is extracted in the form of rules that are used in the development of a predictive intelligent system. Currently, the specification of these rules is built by an expert or data mining. When data mining on a large database is used, the number of generated rules is very complex too. The main goal of this work is minimize the rule generation time. The proposed tool, called DiagData, extracts knowledge automatically or semi-automatically from a database and uses it to build an intelligent system for disease prediction. In this work, the decision tree learning algorithm was used to generate the rules. A toolbox called Fuzzygen was used to generate a prediction system from rules generated by decision tree algorithm. The language used to implement this software was Java. The DiagData has been used in diseases prediction and diagnosis systems and in the validation of economic and environmental indicators in agricultural production systems. The validation process involved measurements and comparisons of the time spent to enter the rules by an expert with the time used to insert the same rules with the proposed tool. Thus, the tool was successfully validated, providing a reduction of time.

关键词：生成工具模糊推理系统数据挖掘技术大型数据库决策树算法预测系统疾病诊断提取规则

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Candidate genes for male and female reproductive traits in Canchim beef cattle

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Journal of Animal Science and Biotechnology 2018年第1期9卷 59-68页

作者： Marcos Eli Buzanskas Daniela do Amaral Grossi Ricardo Vieira Ventura Flavio Schramm Schenkel Tatiane Cristina Seleguim Chud Nedenia Bonvino Stafuzza Luciana Diniz Rola Sarah Laguna Conceio Meirelles Fabiana Barichello Mokry Maurício de Alvarenga Mudadu Roberto Hiroshi Higa Marcos Vinícius Gualberto Barbosa da Silva Maurício Mello de Alencar Luciana Correia de Almeida Regitano Danísio Prado Munari Departamento de Zootecnia Universidade Federal da Paraíba(UFPB)AreiaParailba 58397-000Brazil Fast Genetics SaskatoonSK S7K 2K6Canada Beef Improvement Opportunities(BIO) GuelphON N1K 1ESCanada Department of Animal and Poultry Science University of GuelphCentre for Genetic Improvement of Livestock(CGIL)GuelphON N1G 2W1Canada Departamento de Ciencias Exatas Faculdade de Ci6ncias Agrarias e VeterinariasUniversidade Estadual Paulista(Unesp)JaboticabalSao Paulo 14884 900Brazil Departamento de Zootecnia Nucleo de Pesquisa e Conservacao de CervMeosFaculdade de Ciencias Agrarias e VeterinariasUniversidade Estadual Paulista(Unesp)JaboticabalSao Paulo 14884 900Brazil Department of Animal Science Federal University/of Lavras(UFLA)LavrasMinas Gerais 37200 000Brazil Department of Genetics and Evolution Federa University of Sao Carlos(UFSCar)Sao CarlosSao Paulo 13565-905Brazil embrapa Agricultural informatics Campinas55o Paulo 13083 886Brazil embrapa Dairy Cattle Juiz de ForaMinas Gerais 36038 330Brazil embrapa Southeast Livestock Sao CarlosSao Paulo 13560 970Brazil

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 ***： 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 regions. Biological processes of genes were associated with immune system, multicellular organismal process, response to stimulus, apoptotic process, cellular component organization or biogenesis, biological adhesion, and ***： Few associations were observed for scrotal circumference at 210 d of age, age at first calving, and age at second calving, reinforcing their polygenic inheritance and the complexity of understanding the genetic architecture of reproductive traits. Finding many associations for scrotal circumference at 420 d of age in various regions of the Canchim genome also reveals the difficulty of targeting specific candidate genes that could act on fertility; nonetheless,the high linkage disequilibrium between loci herein estimated could aid to overcome this issue. Therefore, al relevant information about genomic regions influencing reproductive traits may contribute to target candidate genes for further investigation of causal mutations and aid in future genomic studies in Canchim cattle to improve the breeding program.

关键词： Animal breeding Composite breed Genome-wide association Genomic data Single nucleotide polymorphism

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