Deuterocohnia is a small genus of bromeliads, with only 17 species, but has radiated into an extraordinary range of habitats, from sea level on the coasts of Chile and Peru coasts to 3900 m elevation in the Andes of Bolivia and Argentina. Li et al. use sequences of over 1800 nuclear genes and whole plastomes to infer relationships, reconstruct the evolution of morphology and ecology, and evaluate historical biogeography. They found rapid adaptive divergence, two convergent origins of the cushion-plant habit, recurrent effects of the Rio Pilcomaya barrier on speciation and chloroplast capture. Deuterocohnia arose in southeastern Bolivia, and—as shown by this stochastic mapping—repeatedly evolved up- and downslope into other habitats from Andean Yungas on steep slopes at mid-elevation.
#Phylogenomics, ecomorphological #evolution, & historical biogeography in Deuterocohnia (Bromeliaceae: Pitcairnioideae)
New #AJB research by Bing Li, Nicole Schütz, Kurt Weising, Georg Zizka, Jacob Landis & Thomas Givnish
doi.org/10.1002/ajb2... #botany #plantscience #Neotropics