High phylogeographic and genetic diversity of Tidestromia lanuginosa supports full-glacial refugia for arid-adapted plants in southern and central Coahuila, Mexico.
Ivonne Sánchez-Del PinoAlejandra AlfaroRubén H Andueza-NohArturo Mora-OlivoMariana Chávez-PesqueiraAriadna Ibarra-MoralesMichael J MooreHilda Flores-OlveraPublished in: American journal of botany (2020)
Tidestromia lanuginosa provides 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 of T. lanuginosa in 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.
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