Evidence for a largely unexplored radiation of squamates (lizards, snakes, and amphisbaenians) in the Middle to Late Jurassic is revealed by analyses of morphospace expansion, disparity, and evolutionary rates.
Despite their extreme morphologies, snakes display a global regulatory strategy of their Hox genes similar to that implemented by mammals with, however, important modifications in enhancer specificity.
Piyali Saha, Justin L Shumate ... Suzanne R Pfeffer
Molecular analysis of cholesterol transport by NPC1 and NPC1L1 proteins reveals that cholesterol likely moves through these transporters, and ezetimibe blocks NPC1L1 by binding at the interface between multiple domains.
Analysis of bearded dragon model reveals a novel tooth replacement strategy that demonstrates the critical importance of epithelial patterning, cell migration, and putative stem cell functional specialization in tissue regeneration.
Sophie A Montandon, Anamarija Fofonjka, Michel C Milinkovitch
Robust wrinkling pattern of the frilled dragon’s spectacular erectile ruff emerges from an elastic instability during homogeneous growth of the embryonic neck fold frustrated by its attachment to adjacent tissues.
Andrea S Meseguer, Alice Michel ... Fabien L Condamine
Neotropical outstanding biodiversity emerged from sustained rates of species accumulation over time, although, for some periods, tetrapods were less successful than plants in keeping pace with a changing environment.
Daniel J Paluh, Karina Riddell ... David C Blackburn
Teeth are maintained in two amphibian groups (caecilians and salamanders) but were lost in frogs over 20 times independently, a higher incidence of edentulism than any other major vertebrate group.
Comparative studies of gene expression in the uterus during pregnancy identifies new genes important for pregnancy and associated with complications such as preterm birth.
Damilola Pinheiro, Marie-Anne Mawhin ... Kevin J Woollard
In-silico modeling of gene and protein emergence reveals how colony-stimulating factors contributed to the evolution and functional adaptions observed in mammalian neutrophils.
Edmundo G Vides, Ayan Adhikari ... Suzanne R Pfeffer
Parkinson’s disease-associated LRRK2 kinase is recruited to membranes by its Rab GTPase substrates, and LRRK2 is both retained on membranes and further activated there by cooperative interaction with the phosphorylated Rab proteins that it generates.