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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Speciation in the Derrida-Higgs model with finite genomes and spatial populations

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Autor(es):
de Aguiar, Marcus A. M.
Número total de Autores: 1
Tipo de documento: Artigo Científico
Fonte: Journal of Physics A-Mathematical and Theoretical; v. 50, n. 8 FEB 24 2017.
Citações Web of Science: 3
Resumo

The speciation model proposed by Derrida and Higgs demonstrated that a sexually reproducing population can split into different species in the absence of natural selection or any type of geographic isolation, provided that mating is assortative and the number of genes involved in the process is infinite. Here we revisit this model and simulate it for finite genomes, focusing on the question of how many genes it actually takes to trigger neutral sympatric speciation. We find that, for typical parameters used in the original model, it takes the order of 105 genes. We compare the results with a similar spatially explicit model where about 100 genes suffice for speciation. We show that when the number of genes is small the species that emerge are strongly segregated in space. For a larger number of genes, on the other hand, the spatial structure of the population is less important and the species distribution overlap considerably. (AU)

Processo FAPESP: 16/06054-3 - Dinâmica de populações espacialmente distribuídas: especiação e coevolução
Beneficiário:Marcus Aloizio Martinez de Aguiar
Modalidade de apoio: Auxílio à Pesquisa - Regular