Historical biogeography of the widespread macroalga Sargassum (Fucales, Phaeophyceae).

ABSTRACT: Sargassum is a cosmopolitan brown algal genus spanning the three ocean basins of the Atlantic, Pacific and Indian Oceans, inhabiting temperate, subtropical and tropical habitats. Sargassum has been postulated to have originated in the Oligocene epoch approximately 30 mya according to a broad phylogenetic analysis of brown macroalgae, but its diversification to become one of the most widespread and speciose macroalgal genera remains unclear. Here, we present a Bayesian molecular clock study, which analyzed data from the order Fucales of the brown algal crown radiation (BACR) group to reconstruct a time-calibrated phylogeny of the Sargassum clade. Our phylogeny included a total of 120 taxa with 99 Sargassum species sampled for three molecular markers - ITS-2, cox3 and rbcLS - calibrated with

SUBMITTER: Yip ZT 

PROVIDER: S-EPMC7187439 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature