Your browser doesn't support javascript.
loading
Divergence with gene flow is driven by local adaptation to temperature and soil phosphorus concentration in teosinte subspecies (Zea mays parviglumis and Zea mays mexicana).
Aguirre-Liguori, Jonás A; Gaut, Brandon S; Jaramillo-Correa, Juan Pablo; Tenaillon, Maud I; Montes-Hernández, Salvador; García-Oliva, Felipe; Hearne, Sarah J; Eguiarte, Luis E.
Afiliação
  • Aguirre-Liguori JA; Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, México.
  • Gaut BS; Department of Ecology and Evolutionary Biology, University of California, Irvine, California.
  • Jaramillo-Correa JP; Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, México.
  • Tenaillon MI; Génétique Quantitative et Evolution- Le Moulon, INRA, Gif-sur-Yvette, France.
  • Montes-Hernández S; Campo Experimental Bajío, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias, Celaya, México.
  • García-Oliva F; Instituto de Investigaciones en Ecosistemas y Sustentabilidad, Universidad Nacional Autónoma de México, Morelia, México.
  • Hearne SJ; International Maize and Wheat Improvement Center (CIMMYT), Texcoco, México.
  • Eguiarte LE; Departamento de Ecología Evolutiva, Instituto de Ecología, Universidad Nacional Autónoma de México, Ciudad de México, México.
Mol Ecol ; 28(11): 2814-2830, 2019 06.
Article em En | MEDLINE | ID: mdl-30980686
Patterns of genomic divergence between hybridizing taxa can be heterogeneous along the genome. Both differential introgression and local adaptation may contribute to this pattern. Here, we analysed two teosinte subspecies, Zea mays ssp. parviglumis and ssp. mexicana, to test whether their divergence has occurred in the face of gene flow and to infer which environmental variables have been important drivers of their ecological differentiation. We generated 9,780 DArTseqTM SNPs for 47 populations, and used an additional data set containing 33,454 MaizeSNP50 SNPs for 49 populations. With these data, we inferred features of demographic history and performed genome wide scans to determine the number of outlier SNPs associated with climate and soil variables. The two data sets indicate that divergence has occurred or been maintained despite continuous gene flow and/or secondary contact. Most of the significant SNP associations were to temperature and to phosphorus concentration in the soil. A large proportion of these candidate SNPs were located in regions of high differentiation that had been identified previously as putative inversions. We therefore propose that genomic differentiation in teosintes has occurred by a process of adaptive divergence, with putative inversions contributing to reduced gene flow between locally adapted populations.
Assuntos
Palavras-chave
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fósforo / Solo / Temperatura / Variação Genética / Adaptação Fisiológica / Zea mays / Fluxo Gênico Tipo de estudo: Prognostic_studies País/Região como assunto: Mexico Idioma: En Revista: Mol Ecol Assunto da revista: BIOLOGIA MOLECULAR / SAUDE AMBIENTAL Ano de publicação: 2019 Tipo de documento: Article País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Fósforo / Solo / Temperatura / Variação Genética / Adaptação Fisiológica / Zea mays / Fluxo Gênico Tipo de estudo: Prognostic_studies País/Região como assunto: Mexico Idioma: En Revista: Mol Ecol Assunto da revista: BIOLOGIA MOLECULAR / SAUDE AMBIENTAL Ano de publicação: 2019 Tipo de documento: Article País de publicação: Reino Unido