Petra Anne Levin,Esther R Angert
Petra Anne Levin
Our view of bacteria is overwhelmingly shaped by their diminutive nature. The most ancient of organisms, their very presence was not appreciated until the 17th century with the invention of the microscope. Initially, viewed as "bags of enzy...
Schwann cell myelination [0.03%]
施万细胞的髓鞘化过程
James L Salzer
James L Salzer
Myelinated nerve fibers are essential for the rapid propagation of action potentials by saltatory conduction. They form as the result of reciprocal interactions between axons and Schwann cells. Extrinsic signals from the axon, and the extra...
Control of organ growth by patterning and hippo signaling in Drosophila [0.03%]
形态建立和Hippo信号在果蝇器官生长中的作用
Kenneth D Irvine,Kieran F Harvey
Kenneth D Irvine
Control of organ size is of fundamental importance and is controlled by genetic, environmental, and mechanical factors. Studies in many species have pointed to the existence of both organ-extrinsic and -intrinsic size-control mechanisms, wh...
Eliot A Brenowitz,Tracy A Larson
Eliot A Brenowitz
New neurons are added throughout the forebrain of adult birds. The song-control system is a model to investigate the addition of new long-projection neurons to a cortical circuit that regulates song, a learned sensorimotor behavior. Neurobl...
Interaction between Neurogenesis and Hippocampal Memory System: New Vistas [0.03%]
神经元生成与海马记忆系统间的相互作用：新的视野
Djoher Nora Abrous,Jan Martin Wojtowicz
Djoher Nora Abrous
During the last decade, the questions on the functionality of adult neurogenesis have changed their emphasis from if to how the adult-born neurons participate in a variety of memory processes. The emerging answers are complex because we are...
Doreen Cantrell
Doreen Cantrell
The fate of T and B lymphocytes, the key cells that direct the adaptive immune response, is regulated by a diverse network of signal transduction pathways. The T- and B-cell antigen receptors are coupled to intracellular tyrosine kinases an...
Dan I Andersson,Jon Jerlström-Hultqvist,Joakim Näsvall
Dan I Andersson
How the enormous structural and functional diversity of new genes and proteins was generated (estimated to be 10(10)-10(12) different proteins in all organisms on earth [Choi I-G, Kim S-H. 2006. Evolution of protein structural classes and p...
Jennifer C Perry,Locke Rowe
Jennifer C Perry
Sexual conflict occurs whenever there is sexually antagonistic selection on shared traits. When shared traits result from interactions (e.g., mating rate) and have a different genetic basis in each sex (i.e., interlocus conflict), then sex-...
Denise Zickler,Nancy Kleckner
Denise Zickler
Recombination is a prominent feature of meiosis in which it plays an important role in increasing genetic diversity during inheritance. Additionally, in most organisms, recombination also plays mechanical roles in chromosomal processes, mos...
Infanticide as sexual conflict: coevolution of male strategies and female counterstrategies [0.03%]
婴儿杀戮作为性冲突：男性的策略与女性的反策略的协同进化
Ryne A Palombit
Ryne A Palombit
One of the earliest recognized forms of sexual conflict was infanticide by males, which imposes serious costs on female reproductive success. Here I review two bodies of evidence addressing coevolved strategies of males and females. The ori...