Studies of Sargassum indicate assignment of species is quite messy, with very low molecular diversity, despite very high morphological diversity.
Cross-sectional study shows an intermediate prevalence of HTLV-1 in the urban population of Campo Grande, Mato Grosso do Sul, documenting the distribution of HTLV in the general population.
Phylogenetic relationships within five families of North American killifishes show that clade antiquity, adaptability, dynamic geography, and persistence can explain the living diversity of New World killifishes.
Complete chloroplast genome sequences strongly support the monophyly of grasses in Arundinella and Garnotia, but intergeneric phylogenetic relationships within Arundinelleae require clarification.