Results 101 to 110 of about 277,643 (313)

Testing for adaptive evolution of the female reproductive protein ZPC in mammals, birds and fishes reveals problems with the M7-M8 likelihood ratio test

BMC Evolutionary Biology, 2005
Background Adaptive evolution appears to be a common feature of reproductive proteins across a very wide range of organisms. A promising way of addressing the evolutionary forces responsible for this general phenomenon is to test for adaptive evolution ...
Berlin Sofia, Smith Nick GC
doaj   +1 more source

Evolutionary genetics of naturally and sexually selected traits in cichlid fishes [PDF]

, 2014
In my PhD thesis I use cichlid fishes as model system to study the evolutionary genetics of naturally and sexually selected traits. Several traits of cichlid fishes such as; the pharyngeal jaw apparatus, haplochromine maternal mouthbrooding, egg-spots ...
Diepeveen, Eveline Tamara
core   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Transcriptomic detection of Candidatus Allocryptoplasma (Anaplasmataceae) in Galápagos marine iguanas (Amblyrhynchus cristatus, Iguanidae)

Parasites & Vectors
Background Globally, the disease ecology of reptiles remains understudied, even for threatened and iconic species such as the Galápagos marine iguana (Amblyrhynchus cristatus).
Flora Uesseler, Lena Werner, Stefan Schaffer, Alejandro Ibáñez, Scott Glaberman, Diego Páez-Rosas, Juan M. Guayasamin, Michael Hofreiter, Sebastian Steinfartz, Franziska Anni Franke-Gerth   +9 more
doaj   +1 more source

Physiological adaptation strategies for thermoregulation in Tupaia belangeri under high-temperature environment challenge

Frontiers in Physiology
IntroductionTo investigate the capacity of Tupaia belangeri to withstand high-temperature environments and its adaptability to global warming trends, while examining evidence for the species’ tropical origins through thermal neutral zone analysis ...
Dongjie Liu, Wanlong Zhu, Wanlong Zhu, Wanlong Zhu   +3 more
doaj   +1 more source

Microbiome−host proteostasis crosstalk—An emerging perspective on mechanisms and interventions toward healthy longevity

FEBS Letters, EarlyView.
Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley   +1 more source

Geographic patterns and environmental correlates of taxonomic, phylogenetic and functional β-diversity of wetland plants in the Qinghai-Tibet Plateau

Ecological Indicators
The Qinghai-Tibet Plateau (QTP) harbours the largest wetland complex in China, with a relatively high diversity of wetland plants. While there has been extensive research on the α-diversity of various plant groups in the QTP, the study of β-diversity ...
Yigang Li, Fan Liu, Yadong Zhou, Xing Liu, Qingfeng Wang   +4 more
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

FEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa, Shinya Sugimoto, Toshiro Sato   +2 more
wiley   +1 more source

Genome wide analyses reveal little evidence for adaptive evolution in many plant species

, 2016
The relative contribution of advantageous and neutral mutations to the evolutionary process is a central problem in evolutionary biology. Current estimates suggest that whereas Drosophila, mice, and bacteria have undergone extensive adaptive evolution ...
Song, Bao-Hua, Dixon, C. J, Filatov, D.A., Eyre-Walker, Adam, Gossmann, Toni I, Kapralov, Maxim, Windsor, Aaron J, Mitchell-Olds, Thomas   +7 more
core   +1 more source