New morphological information on the Cambrian artiopodan Acanthomeridion, including CT data, demonstrate that dorsal ecdysial sutures likely evolved multiple times within this group.
Cortices from 11 primate species share the same archetypal fractal shape, indicating a universal mechanism for primate and mammalian cortical folding, and suggesting novel shape biomarkers for brains.
Thibaut Sellinger, Frank Johannes, Aurélien Tellier
The developed statistical method paves the way for next generation demographic and selection inference by combining information from several heritable genomic and epigenomic markers.
Zachary H Williams, Alvaro Dafonte Imedio ... Welkin E Johnson
The genetic 'fossil record' of a retroviral lineage over >25 million years of evolution reveals the profound consequences of an ancient recombination event on viral replication mechanisms and genome structure, and identifies an ancient interspecies viral transmission.
The timescale dependence of dN/dS in bacteria is better explained by adaptive than purifying dynamics, suggesting comparative genomics can underestimate past adaptation.
Audrey Le Veve, Mathieu Genete ... Vincent Castric
By modulating the intensity of balancing selection at the S-locus, dominance between self-incompatibility alleles shapes the genetic load linked to each allele, creating inbreeding depression in some S-locus homozygotes.