Cells of the xanthophore lineage form projections that allow them to communicate with other pigment cells during adult pigment pattern formation in zebrafish, but not in the closely-related pearl danio.
Alison F Feder, Soo-Yon Rhee ... Pleuni S Pennings
The transition from bad to good treatments for HIV was accompanied by a shift from soft sweeps of many drug resistance mutations spreading simultaneously to harder sweeps of one drug resistant genotype at a time.
Transcriptional regulation evolves at indistinguishable rates in mammals, birds and insect lineages despite large differences in underlying rates of sequence evolution.
Achim H Schwermann, Tomy dos Santos Rolo ... Thomas van de Kamp
X-ray imaging reveals well-preserved internal characters in mineralized arthropods from the Paleogene, urging the reexamination of previously neglected fossil collections.
Andrew M Hein, Sara Brin Rosenthal ... Iain D Couzin
A computational model shows that natural selection can cause populations to evolve a distinctive population-level phenotype: the ability to transition between collective states in response to the environment.
Jason W Olejarz, Benjamin Allen ... Martin A Nowak
A mathematical model predicts the precise conditions for natural selection to favor the evolution of non-reproductive workers in insect colonies with haplodiploid genetics.
Alex de Mendoza, Hiroshi Suga ... Iñaki Ruiz-Trillo
Functional genomics reveal complex genome regulation during the coenocytic development of the ichthyosporean Creolimax fragrantissima, a protist closely related to animals.
