Results 131 to 140 of about 5,976,385 (321)

Data incongruence and the problem of avian louse phylogeny [PDF]

open access: yes, 2004
Recent studies based on different types of data (i.e. morphological and molecular) have supported conflicting phylogenies for the genera of avian feather lice (Ischnocera: Phthiraptera).
Archie J. W.   +52 more
core   +1 more source

A Testis‐Specific Aralkylamine N‐Acetyltransferase Regulates Dimorphic Sperm Function and Male Fertility in Moths

open access: yesAdvanced Science, EarlyView.
We identify a Lepidoptera‐conserved testis‐specific arylalkylamine N‐acetyltransferase (LTNAT) that governs male moth fertility via a novel mechanism. LTNAT loss disrupts eupyrene sperm mitochondrial derivatives and impairs apyrene sperm motility, offering a safe molecular target for innovative pesticides and genetic pest control.
Hao Sun   +5 more
wiley   +1 more source

The best of both worlds: Phylogenetic eigenvector regression and mapping

open access: yesGenetics and Molecular Biology, 2015
Eigenfunction analyses have been widely used to model patterns of autocorrelation in time, space and phylogeny. In a phylogenetic context, Diniz-Filho et al.
José Alexandre Felizola Diniz Filho   +2 more
doaj   +1 more source

Evolutionary relationships among bifidobacteria and their hosts and environments. [PDF]

open access: yes, 2020
BACKGROUND:The assembly of animal microbiomes is influenced by multiple environmental factors and host genetics, although the relative importance of these factors remains unclear.
Martiny, Jennifer BH   +1 more
core  

Alternating High‐Fat and Polysaccharide Diets Modulates Gut Phage‐Bacterial Interplay

open access: yesAdvanced Science, EarlyView.
This study reveals how alternating high‐fat and polysaccharide diets reshape the human gut virome and enhance phage‐bacteria interactions. Using large‐scale metagenomic meta‐analysis and a time‐resolved mouse model, the authors show that diets strongly modulate phage abundance, lifestyle, and gene exchange, offering new insights into nutrition‐guided ...
Fengxiang Zhao   +6 more
wiley   +1 more source

Maternal Preconception Antibiotic Exposure Disrupts Microbial Succession: A Transgenerational Risk for Offspring Gut Mucosal Immaturity and Colitis Susceptibility

open access: yesAdvanced Science, EarlyView.
This study reveals that maternal antibiotic exposure prior to conception disrupts intergenerational gut microbial succession. By enhancing maternal‐offspring microbial transmission, altering microbial developmental trajectories and increasing selective pressures during community assembly, these disturbances lead to persistent gut mucosal immaturity and
Yuzhu Chen   +8 more
wiley   +1 more source

Is it climate or chemistry? Soil fungal communities respond to soil nutrients in a multi‐year high‐resolution analysis

open access: yesEcosphere, 2019
Predicting potential responses of soil fungal communities and fungal diversity to environmental change is limited by relatively few long‐term data sets, despite the important role fungi play in ecosystem processes. In this study, we examined the relative
David J. Burke   +2 more
doaj   +1 more source

Avian Song Complexity is Associated With High Field Metabolic Rate [PDF]

open access: yes, 2006
Question: Is the production of bird song costly? Analyses of oxygen consumption during singing provided conflicting results. Data studied: Data on 28 passerine species with quantitative information on song complexity and field metabolic rate, which ...
Garamszegi, László Zsolt   +2 more
core  

Alphaviral Capsid Proteins Inhibit Stress Granule Assembly via Competitive RNA Binding With G3BP1

open access: yesAdvanced Science, EarlyView.
Stress granules exert antiviral functions. This study illustrates a conserved function of alphaviral capsid proteins in modulating stress granules. Oligomerization mediated by a helical motif coupled with a positively charged intrinsically disordered region (IDR) directly competes with G3BP1 for RNA binding, thereby disrupting G3BP1‐RNA liquid–liquid ...
Yun Zhang   +10 more
wiley   +1 more source

Extracting phylogenetic signal and accounting for bias in whole-genome data sets supports the Ctenophora as sister to remaining Metazoa

open access: yesBMC Genomics, 2015
Understanding the phylogenetic relationships among major lineages of multicellular animals (the Metazoa) is a prerequisite for studying the evolution of complex traits such as nervous systems, muscle tissue, or sensory organs.
M. Borowiec   +3 more
semanticscholar   +1 more source

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