Magnolia tamaulipana: Genetic Evaluation Shows High Vulnerability in a Narrow Distribution

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:31:04Z
Fecha de publicación2021-12-13
ResumenMagnolia tamaulipana is an endangered endemic tree found only in the El Cielo Biosphere Reserve in Tamaulipas, Mexico, historically subjected to anthropogenic disturbance. In this study, we assess the genetic diversity and structure of M. tamaulipana in the eight populations known to date. We used microsatellites to estimate the allelic diversity of 240 individuals and examined how this diversity is distributed among and within populations. We show that there is moderate genetic variation in its surviving populations (expected heterozygosity [HE] ranged from 0.38 to 0.54) but low connection by gene flow (coefficient of differentiation [FST]=0.32). The four genetic groups detected (K=4) were not isolated by distance. We suggest the existence of historical population reductions on the basis of the low diversity relative to other Magnolia species with similar distributions, the history of anthropogenic disturbances in the biosphere reserve, detected bottlenecks, and selective pressures in different locations. Recent bottleneck events due to environmental and landscape modifications probably led to increased genetic differentiation in M. tamaulipana.es_ES
Doihttps://doi.org/10.1086/717817es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/2741
Idiomaenes_ES
EditorialUniversity of Chicago Presses_ES
RelaciónInternational Journal of Plant Scienceses_ES
URL relacionadohttps://doi.org/10.1086/717817es_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteInternational Journal of Plant Sciences
Palabra claveBiologyes_ES
Palabra claveGenetic diversityes_ES
Palabra clavePopulation bottleneckes_ES
Palabra claveEndangered specieses_ES
Palabra claveEcologyes_ES
Palabra claveGene flowes_ES
Palabra clavePopulationes_ES
Palabra claveGenetic variationes_ES
Palabra claveMicrosatellitees_ES
Palabra claveAllelees_ES
Palabra claveDemographyes_ES
Palabra claveGeneticses_ES
ClasificaciónGenetic diversity and population structurees_ES
TítuloMagnolia tamaulipana: Genetic Evaluation Shows High Vulnerability in a Narrow Distributiones_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorGarcía-Montes, Mario Adolfo
AutorCibrián‐Jaramillo, Angélica
AutorReyes-Zepeda, Francisco
AutorChacón-Hernández, Julio C.
AutorVanoye‐Eligio, Venancio
AutorSánchez–González, Arturo
AutorOctavio‐Aguilar, Pablo
AutorGarcía-Montes, Mario Adolfoes_ES
AutorCibrián‐Jaramillo, Angélicaes_ES
AutorReyes-Zepeda, Franciscoes_ES
AutorChacón-Hernández, Julio C.es_ES
AutorVanoye‐Eligio, Venancioes_ES
AutorSánchez–González, Arturoes_ES
AutorOctavio‐Aguilar, Pabloes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número2es_ES
Rango de páginas154-167es_ES
URL relacionadahttps://doi.org/10.1086/717817
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen183es_ES

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