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.
Douglas P Anderson, Dustin S Whitney ... Kenneth E Prehoda
Experimentally reconstructing the evolution of the molecular complex that animals use to orient the mitotic spindle establishes a simple genetic and physical mechanism for the emergence of a function essential for multicellularity.
Erik M Quandt, Jimmy Gollihar ... Jeffrey E Barrick
A long-term evolution experiment with Escherichia coli shows that the appearance and optimization of a new trait can require both co-opting existing cellular pathways for new roles and reversing a history of previous adaptation.
