%0 Journal Article %T Aridification as a driver of biodiversity: a case study for the cycad genus Dioon (Zamiaceae) %A Andrew P Vovides %A Francisco Molina-Freaner %A Jos¨¦ F Mart¨ªnez %A Jos¨¦ Said Guti¨¦rrez-Ortega %A Miguel Angel P¨¦rez-Farrera %A Takashi Yamamoto %A Yasuyuki Watano %J Archive of "Annals of Botany". %D 2018 %R 10.1093/aob/mcx123 %X Aridification is considered a selective pressure that might have influenced plant diversification. It is suggested that plants adapted to aridity diversified during the Miocene, an epoch of global aridification (¡Ö15 million years ago). However, evidence supporting diversification being a direct response to aridity is scarce, and multidisciplinary evidence, besides just phylogenetic estimations, is necessary to support the idea that aridification has driven diversification. The cycad genus Dioon (Zamiaceae), a tropical group including species occurring from humid forests to arid zones, was investigated as a promising study system to understand the associations among habitat shifts, diversification times, the evolution of leaf epidermal adaptations, and aridification of Mexico %K Aridification %K climate change %K cycads %K Dioon %K diversification %K epidermal anatomy %K habitat shift %K Mexico %K Zamiaceae %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5786249/