Results 281 to 290 of about 187,335 (337)

Expression patterns of melanin‐related genes are linked to crypsis and conspicuousness in a pumpkin toadlet

open access: yesMolecular Ecology, Volume 34, Issue 15, August 2025.
Abstract Colour signals play pivotal roles in different communication systems, and the evolution of these characters has been associated with behavioural ecology, integumentary production processes and perceptual mechanisms of the species involved. Here, we present the first insight into the molecular and histological basis of skin colour polymorphism ...
Juliane P. C. Monteiro   +7 more
wiley   +1 more source

Sexual Selection on Non‐Ornamental Traits Is Underpinned by Evidence of Genetic Constraints on Sex‐Biased Expression in Dusky Pipefish

open access: yesMolecular Ecology, Volume 34, Issue 15, August 2025.
ABSTRACT Species lacking distinct secondary sex characteristics, such as differences in size or morphology, are often thought to experience lower levels of sex‐specific selection in comparison to highly sexually dimorphic organisms. However, monomorphism in classic visible traits could be a result of genetic or physiological constraints that prevent ...
Nicole M. Tosto   +4 more
wiley   +1 more source

ModE Regulates Alternative Nitrogenase Expression in the Methanogen Methanosarcina acetivorans

open access: yesMolecular Microbiology, EarlyView.
During nitrogen fixation, the methanogen Methanosarcina acetivorans produces the alternative vanadium‐nitrogenase and iron‐nitrogenase only when molybdenum is unavailable to support the activity of molybdenum‐nitrogenase. Our work demonstrates that the expression of the alternative nitrogenases in M.
Melissa Chanderban, Daniel J. Lessner
wiley   +1 more source

Specialized molecular pathways drive the formation of light-scattering assemblies in leucophores. [PDF]

open access: yesProc Natl Acad Sci U S A
Barzilay Y   +12 more
europepmc   +1 more source

Old Doubts From a New Perspective: Oral Versus Subcutaneous Methotrexate

open access: yes
International Journal of Dermatology, EarlyView.
Laura Kiss, Rolland Gyulai
wiley   +1 more source

Staphylococcus aureus COL: An Atypical Model Strain of MRSA That Exhibits Slow Growth and Antibiotic Tolerance due to a Mutation in PRPP Synthetase

open access: yesMolecular Microbiology, EarlyView.
COL is an unusual “model” strain of Staphylococcus aureus that exhibits slow growth and multidrug antibiotic tolerance. This phenotype is primarily due to a mutation in Prs, which synthesizes the core metabolite phosphoribosyl pyrophosphate (PRPP). Introduction of the COL Prs allele into the antibiotic‐susceptible strain Newman confers tolerance, while
Claire E. Stevens   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy