High phylogeographic and genetic diversity ofTidestromia lanuginosasupports full-glacial refugia for arid-adapted plants in southern and central Coahuila, Mexico

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:37Z
Fecha de publicación2020-01-01
ResumenPremise Recent phylogeographic work suggests the existence of latitudinal gradients in genetic diversity in northern Mexican plants, but very few studies have examined plants of the Chihuahuan Desert.Tidestromia lanuginosais a morphologically variable annual species whose distribution includes the Chihuahuan Desert Region. Here we undertook phylogeographic analyses of chloroplast loci in this species to test whether genetic diversity and differentiation of Mexican populations ofT. lanuginosachange along a latitudinal gradient and whether diversity is higher in Coahuila, consistent with ideas of lower plant community turnover during the Pleistocene. Methods Haplotype network, maximum likelihood tree, and Bayesian phylogenetic haplotype were reconstructed, and genetic diversity was assessed among 26 populations. Barrier analysis was used to explore barriers to gene flow. Results Four major population groups were identified, corresponding with physiographic provinces in Mexico. Each population group displayed high levels of genetic structure, haplotype, and nucleotide diversity. Diversity was highest in southern populations across the species as a whole and among the Chihuahuan Desert populations. Conclusions Tidestromia lanuginosaprovides an important example of high phylogeographic and genetic diversity in plants of northern Mexico. Barriers to gene flow among the major population groups have most likely been due to a combination of orographic, climatic, and edaphic variables. The high genetic diversity ofT. lanuginosain southern and central Coahuila is consistent with the hypothesis of full-glacial refugia for arid-adapted plants in this area, and highlights the importance of this region as a center of diversity for the Chihuahuan Desert flora.es_ES
Doihttps://doi.org/10.1002/ajb2.1536es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5414
Idiomaenes_ES
EditorialWILEYes_ES
RelaciónAmerican Journal of Botanyes_ES
URL relacionadohttps://doi.org/10.1002/ajb2.1536es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteAmerican Journal of Botany
Palabra claveAmaranthaceaees_ES
Palabra claveChihuahuan Desertes_ES
Palabra claveCuatro Cienegases_ES
Palabra clavegene flowes_ES
Palabra clavegenetic diversityes_ES
Palabra clavegenetic structurees_ES
Palabra claveGomphrenoideaees_ES
Palabra claveMexican physiographic provinceses_ES
Palabra clavePleistocene refugiaes_ES
Palabra claveTidestromia lanuginosaes_ES
TítuloHigh phylogeographic and genetic diversity ofTidestromia lanuginosasupports full-glacial refugia for arid-adapted plants in southern and central Coahuila, Mexicoes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorSanchez-del Pino, Ivonne
AutorAlfaro, Alejandra
AutorAndueza-Noh, Ruben H.
AutorMora-Olivo, Arturo
AutorChavez-Pesqueira, Mariana
AutorIbarra-Morales, Ariadna
AutorMoore, Michael J.
AutorFlores-Olvera, Hilda
AutorSanchez-del Pino, Ivonnees_ES
AutorAlfaro, Alejandraes_ES
AutorAndueza-Noh, Ruben H.es_ES
AutorMora-Olivo, Arturoes_ES
AutorChavez-Pesqueira, Marianaes_ES
AutorIbarra-Morales, Ariadnaes_ES
AutorMoore, Michael J.es_ES
AutorFlores-Olvera, Hildaes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número9es_ES
Rango de páginas1296-1308es_ES
URL relacionadahttps://doi.org/10.1002/ajb2.1536
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen107es_ES

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