The genus Doto Oken, 1815 is, taxonomically, one of the most complex genera of nudibranchs due to the cryptic nature of its species, their small body size, and the homogeneity among their internal and external features. Here, an extensive molecular analysis of Mediterranean, Northeastern Atlantic, and South American specimens sheds light on the species-level taxonomy of the group. Our multilocus analyses include 171 specimens,...

Summary Euryarchaea from the genus H alorhabdus have been found in hypersaline habitats worldwide, yet are represented by only two isolates: H alorhabdus utahensis AX ‐2 T from the shallow G reat S alt L ake of U tah, and H alorhabdus tiamatea SARL 4 B T from the S haban deep‐sea hypersaline anoxic lake ( DHAL ) in the R ed S ea. We sequenced the H . tiamatea genome to elucidate its niche adaptations. Among sequenced archaea,...

Understanding the selective forces that shape genetic variation in natural populations remains a high priority in evolutionary biology. Genes at the major histocompatibility complex (MHC) have become excellent models for the investigation of adaptive variation and natural selection because of their crucial role in fighting off pathogens. Here we present one of the first data sets examining patterns of MHC variation in wild pop...