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Envirotype approach for soybean genotype selection through the integration of georeferenced climate and genetic data using artificial neural networks

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Abstract

The selection of better-evaluated genotypes for a target region depends on the characterization of the climate conditions of the environment. With the advancement of computer technology and daily available information about the weather, integrating such information in selection and interaction genotype × environment studies has become a challenge. This article presents the use of the technique of artificial neural networks associated with reaction norms for the processing of climate and georeferenced data for the study of genetic behaviors and the genotype × environment interaction of soybean genotypes. The technique of self-organizing maps (SOM) consists of competitive learning between two layers of neurons; one is the input, which transfers the data to the map, and the other is the output, where the topological structure formed by the competition generates weights, which represent the dissimilarity between the neural units. The methodologies used to classify these neurons and form the target populations of environments (TPE) were the discriminant analysis (DA) and the principal component analysis (PCA). To study soybean genetic behavior within these TPE, the random regression model was adopted to estimate the components of variance, and the reaction norms were adjusted through the Legendre polynomials. The SOM methodology allowed for an explanation of 99% of the variance of the climate data and the formation of well-structured TPE, with the membership probability of the regions within the TPE above 80%. The formation of these TPE allowed us to identify and quantify the response of the genotypes to sensitive changes in the environment.

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Acknowledgements

The authors would like to thank the GDM Genética do Brasil S.A. for providing the environmental and soybean data. This study was supported the the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES)—Finance Code 001, Fundação de Amparo à Pesquisa do Estado de Minas Gerais (FAPEMIG) and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). In addition to our gratitude to the organizations that supported this study, we would like to express our sincere appreciation to the late Professor Fabyano Fonseca e Silva for his invaluable contributions to our research.

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BGL: Conceptualization, Methodology, Software, Formal analysis and Supervision. LFS: Conceptualization and Writing-Orinal Draft. MAP: Validation, Software and Data Curation. LAP: Writing—Review and Editing, Formal analysis. FLS: Writing—Review and Editing, Project administration.

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Correspondence to Felipe Lopes da Silva.

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The authors declare no competing interests.

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Leichtweis, B.G., de Faria Silva, L., Peixoto, M.A. et al. Envirotype approach for soybean genotype selection through the integration of georeferenced climate and genetic data using artificial neural networks. Euphytica 220, 8 (2024). https://doi.org/10.1007/s10681-023-03267-1

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  • DOI: https://doi.org/10.1007/s10681-023-03267-1

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