Genetic analyses and dispersal patterns unveil the Amazonian origin of guava domestication.

Arévalo-Marín, Edna; Casas, Alejandro; Alvarado-Sizzo, Hernán; Ruiz-Sanchez, Eduardo; Castellanos-Morales, Gabriela; Jardón-Barbolla, Lev; Fermin, Gustavo; Padilla-Ramírez, José S; Clement, Charles R

Arévalo-Marín, Edna; Casas, Alejandro; Alvarado-Sizzo, Hernán; Ruiz-Sanchez, Eduardo; Castellanos-Morales, Gabriela; Jardón-Barbolla, Lev; Fermin, Gustavo; Padilla-Ramírez, José S; Clement, Charles R.

Afiliação

Arévalo-Marín E; Instituto de Investigaciones en Ecosistemas y Sustentabilidad-IIES, Universidad Nacional Autónoma de México, Morelia, Michoacán, Mexico. earevalo@cieco.unam.mx.
Casas A; Posgrado en Ciencias Biológicas, Unidad de Posgrado, Ciudad Universitaria, Coyoacán, CDMX, Mexico. earevalo@cieco.unam.mx.
Alvarado-Sizzo H; Instituto de Investigaciones en Ecosistemas y Sustentabilidad-IIES, Universidad Nacional Autónoma de México, Morelia, Michoacán, Mexico. acasas@cieco.unam.mx.
Ruiz-Sanchez E; Laboratorio de Biogeografía y Sistemática, Departamento de Biología Evolutiva, Facultad de Ciencias, Universidad Nacional Autónoma de México, Ciudad Universitaria, Mexico City, CDMX, Mexico.
Castellanos-Morales G; Departamento de Botánica y Zoología, Centro Universitario de Ciencias Biológicas y Agropecuarias, Universidad de Guadalajara, Zapopan, Jalisco, Mexico.
Jardón-Barbolla L; Departamento de Conservación de la Biodiversidad, El Colegio de la Frontera Sur, Unidad Villahermosa (ECOSUR-Villahermosa), Villahermosa, Tabasco, Mexico.
Fermin G; Centro de Investigaciones Interdisciplinarias en Ciencias y Humanidades, Universidad Nacional Autónoma de México, Ciudad Universitaria, Coyoacán, CDMX, Mexico.
Padilla-Ramírez JS; Instituto Jardín Botánico de Mérida, Facultad de Ciencias, Universidad de Los Andes, Mérida, Mérida, Venezuela.
Clement CR; Campo Experimental Pabellón, Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias (INIFAP), Aguascalientes, Mexico.

Sci Rep ; 14(1): 15755, 2024 07 08.

Article em En | MEDLINE | ID: mdl-38977809

ABSTRACT

ABSTRACT

Guava (Psidium guajava L.) is a semi-domesticated fruit tree of moderate importance in the Neotropics, utilized for millennia due to its nutritional and medicinal benefits, but its origin of domestication remains unknown. In this study, we examine genetic diversity and population structure in 215 plants from 11 countries in Mesoamerica, the Andes, and Amazonia using 25 nuclear microsatellite loci to propose an origin of domestication. Genetic analyses reveal one gene pool in Mesoamerica (Mexico) and four in South America (Brazilian Amazonia, Peruvian Amazonia and Andes, and Colombia), indicating greater differentiation among localities, possibly due to isolation between guava populations, particularly in the Amazonian and Andean regions. Moreover, Mesoamerican populations show high genetic diversity, with moderate genetic structure due to gene flow from northern South American populations. Dispersal scenarios suggest that Brazilian Amazonia is the probable origin of guava domestication, spreading from there to the Peruvian Andes, northern South America, Central America, and Mexico. These findings present the first evidence of guava domestication in the Americas, contributing to a deeper understanding of its evolutionary history.

Assuntos

Domesticação; Variação Genética; Repetições de Microssatélites; Psidium; Psidium/genética; Repetições de Microssatélites/genética; América do Sul; Fluxo Gênico; Genética Populacional; Brasil

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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Variação Genética / Repetições de Microssatélites / Psidium / Domesticação País/Região como assunto: America do sul / Brasil Idioma: En Revista: Sci Rep Ano de publicação: 2024 Tipo de documento: Article País de afiliação: México País de publicação: Reino Unido

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