The Ecological, Evolutionary and Biogeographical Histories That Genetic and Phylogenetic Studies of Cacti Reveal

Dear Colleagues,

Cacti are the most emblematic plants of the American arid ecosystems. Except for one taxon (Rhipsalis baccifera), the whole Cactaceae family (~1520 taxa) is endemic to the Americas, where they are widely dispersed, occupying terrestrial continental territories and isles. Today, the highest diversity of cacti is found in the southern arid territories of the USA, Mexico, and South America, but cacti also are found in humid environments. Molecular phylogenies estimate a recent origin of nearly 35 million years ago, thus a rapid speciation and successful biogeographic dispersion explain the high cactus diversity richness currently observed. Moreover, local ecological adaptions have driven interesting life-history traits, specialized biotic interactions with plant pollinators, and morphological and physiological adaptions. The long-term conservation of cacti faces the challenges of illegal traffic, loss, and habitat fragmentation. This Special Issue will collate studies on the genetics and phylogenetics of cacti, as well as ecological, biogeographic, and physiological research that is connected to these issues. Additionally, studies purely focused on conservation topics are also welcome.

Dr. Sofia Solórzano
Dr. Sandra Luz Gomez-Acevedo
Guest Editors

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