Results 41 to 50 of about 1,078,640 (312)

Why More Leaflets? The Role of Natural Selection in Shaping the Spatial Pattern of Leaf-Shape Variation in Oxytropis diversifolia (Fabaceae) and Two Close Relatives

Frontiers in Plant Science, 2021
Leaf shape exhibits tremendous diversity in angiosperms. It has long been argued that leaf shape can affect major physiological and ecological properties of plants and thus is likely to be adaptive, but the evolutionary evidence is still scarce ...
Hui Wang, Pei-Liang Liu, Jian Li, Han Yang, Qin Li, Zhao-Yang Chang   +5 more
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Genetic diversity and structure of baobab (Adansonia digitata L.) in southeastern Kenya [PDF]

Royal Society Open Science, 2019
Baobab (Adansonia digitata L.) is an iconic tree of African savannahs. Its multipurpose character and nutritional composition of fruits and leaves offer high economic and social potential for local communities. There is an urgent need to characterize the
Anna Chládová, Marie Kalousová, Bohumil Mandák, Katja Kehlenbeck, Kathleen Prinz, Jan Šmíd, Patrick Van Damme, Bohdan Lojka   +7 more
doaj   +1 more source

CAN GENE FLOW PREVENT REINFORCEMENT? [PDF]

Evolution, 1989
A model of reinforcement in a hybrid zone is developed in which an allele causing reinforcement may only be favored in the center of the hybrid zone and is selected against elsewhere. When reinforcement is favored only in the hybrid zone, the swamping effect of gene flow severely impedes the evolution of reinforcement: reinforcement can only occur when
openaire   +2 more sources

Molecular bases of circadian magnesium rhythms across eukaryotes

FEBS Letters, EarlyView.
Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley   +1 more source

Crosstalk between the ribosome quality control‐associated E3 ubiquitin ligases LTN1 and RNF10

FEBS Letters, EarlyView.
Loss of the E3 ligase LTN1, the ubiquitin‐like modifier UFM1, or the deubiquitinating enzyme UFSP2 disrupts endoplasmic reticulum–ribosome quality control (ER‐RQC), a pathway that removes stalled ribosomes and faulty proteins. This disruption may trigger a compensatory response to ER‐RQC defects, including increased expression of the E3 ligase RNF10 ...
Yuxi Huang, Satoshi Hashimoto, Sota Ito, Chisato Kikuguchi, Miho Hoshi, Kiyoshi Yamaguchi, Yoichi Furukawa, Toru Suzuki, Toshifumi Inada   +8 more
wiley   +1 more source

Genetic divergence and one‐way gene flow influence contemporary evolution and ecology of a partially migratory fish

Evolutionary Applications
Recent work has revealed the importance of contemporary evolution in shaping ecological outcomes. In particular, rapid evolutionary divergence between populations has been shown to impact the ecology of populations, communities, and ecosystems.
Katie M. Kobayashi, Rosealea M. Bond, Kerry Reid, J. Carlos Garza, Joseph D. Kiernan, Eric P. Palkovacs   +5 more
doaj   +1 more source

A theory of measuring natural selection and genetic monitoring

Communicative & Integrative Biology
Two methods have been compared for determining the value of natural selection in the natural populations. The first method, based on the FST-statistics, employs the dependence of genetic diversity of a species on the value of gene flow between ...
A. I. Yuriev
doaj   +1 more source

Peptide‐based ligand antagonists block a Vibrio cholerae adhesin

FEBS Letters, EarlyView.
The structure of a peptide‐binding domain of the Vibrio cholerae adhesin FrhA was solved by X‐ray crystallography, revealing how the inhibitory peptide AGYTD binds tightly at its Ca2+‐coordinated pocket. Structure‐guided design incorporating D‐amino acids enhanced binding affinity, providing a foundation for developing anti‐adhesion therapeutics ...
Mingyu Wang, Grace Du, Charity Yongo‐Luwawa, Angelina Lu, Brett Kinrade, Kim Munro, Karl E. Klose, William D. Lubell, Peter Davies, Shuaiqi Guo   +9 more
wiley   +1 more source

Genetic consequences of improved river connectivity in brown trout (Salmo trutta L.)

Evolutionary Applications
Fragmentation of watercourses poses a significant threat to biodiversity, particularly for migratory fish species. Mitigation measures such as fishways, have been increasingly implemented to restore river connectivity and support fish migration.
Paolo Moccetti, Jamie R. Dodd, Domino A. Joyce, Andy D. Nunn, Ben Gillespie, Jonathan D. Bolland   +5 more
doaj   +1 more source