Horizontal gene transfer has been increasingly documented between eukaryotes, but a new study suggests a much larger role for horizontal gene transfer in physiological adaption through the transfer of photosynthetic pathway genes.

To some extent, the genetic theory of adaptive evolution in bacteria is a simple extension of that developed for sexually reproducing eukaryotes. In other, fundamental ways, the process of adaptive evolution in bacteria is quantitatively and qualitatively different from that of organisms for which recombination is an integral part of the reproduction process. In this speculative and opinionated...

L. Samal1; TA. Stavroudis2; RE. Miller3; HP. Lehmann4; CU. Lehmann5,* 1Division of General Internal Medicine and Primary Care, Brighman and Women's Hospital; 2Division of Newborn and Critical Care, Children’s Hospital of Los Angeles; 3Department of Pathology, Johns Hopkins University School of Medicine; 4Division of Health Sciences Informatics, Johns Hopkins University School of Medicine; 5Divi...

stafne bone defect is a bone depression containing salivary gland or fatty soft tissue on the lingual surface of the mandible. the most common location is within the submandibular gland fossa and often close to the inferior border of the mandible. this defect is asymptomatic and generally discovered only incidentally during radiographic examination of the area. stafne bone defect appears as a w...

The nano-friction behavior of nickel-based Ag film composites was evaluated using molecular dynamics simulations. mechanical properties, the surface morphology, migration atoms and defect evolution during repeated friction were investigated. Our results show that poor properties at first stage are related to a large amount abrasive chip pileup. slip channel with low shear strength formed by sec...

The surface defects of a hot-rolled strip will adversely affect the appearance and quality industrial products. Therefore, timely identification is great significance. In order to improve efficiency accuracy defect detection, lightweight network based on coordinate attention self-interaction (CASI-Net), which integrates channel domain, spatial information, module, proposed automatically identif...

Hybrid evolution and horizontal gene transfer (HGT) are processes where evolutionary relationships may more accurately be described by a reticulated network than by a tree. In such a network, there will often be several paths between any two extant species, reflecting the possible pathways that genetic material may have been passed down from a common ancestor to these species. These paths will ...