Mangroves have attracted considerable attention due to their ecological importance.Their origin,evolution,and ecological adaptation have long been subjects of investigation.With technological developments in molecular biology and genomics,this field has achieved substantial progress over the past decades.In this review,we focus on five aspects of mangroves:(i)flora,phylogeny,and origin;(ii)population evolution in the Indo-West Pacific region;(iii)natural hybridization and speciation;(iv)molecular and genomic mechanisms underlying intertidal adaptation;and(v)conservation under global change.We also provide several proposals for future research.