Results 41 to 50 of about 499,621 (309)

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

Population Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi, Hidaka Kubo, Tokuya Ogawa, Hayate Omura   +3 more
wiley   +1 more source

Complete genome and comparative genomic analysis of cefpodoxime resistant Pantoea septica strain GABEPS69 isolated from saliva of a patient diagnosed with treatment resistant schizophrenia

International Journal of Medical Microbiology
Objectives: This study aims to generate the first complete genome of Pantoea septica and provide a thorough genomic characterisation of this under-documented species. The study seeks to enhance understanding of P. septica, clarifying features relevant to
Francesca McDonagh, Aneta Kovarova, Anna Tumeo, Andy O’Connor, Niamh McEvoy, Aneesa Mangalam Lonappan, Kasthuri Venkateswaran, Elaine K. Murray, Brian Hallahan, Georgios Miliotis   +9 more
doaj   +1 more source

Complex genome evolution in Anopheles coluzzii associated with increased insecticide usage in Mali. [PDF]

, 2015
In certain cases, a species may have access to important genetic variation present in a related species via adaptive introgression. These novel alleles may interact with their new genetic background, resulting in unexpected phenotypes.
Brisco, Katherine, Collier, Travis C, Cornel, Anthony J, Fofana, Abdrahamane, Lanzaro, Gregory C, Lee, Yoosook, Main, Bradley J, Norris, Laura C   +7 more
core   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

FEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Draft genome sequence of a co-harbouring blaNDM-5 and mcr-1.1 Escherichia coli phylogroup A isolate associated with patient colonisation in Ireland

Journal of Global Antimicrobial Resistance
Objectives: While Escherichia coli phylogroup-A is typically associated with commensal strains, some isolates can harbour virulence and exhibit multidrug-resistant (MDR) phenotypes.
Anna Tumeo, Francesca McDonagh, Aneta Kovarova, Kate Ryan, Christina Clarke, Georgios Miliotis   +5 more
doaj   +1 more source

Beyond EICA : understanding post-establishment evolution requires a broader evaluation of potential selection pressures [PDF]

, 2011
Research on post-establishment evolution in nonnative plant populations has focused almost exclusively on testing the Evolution of Increased Competitive Ability (EICA) hypothesis, which posits that the lack of specialized herbivores in the invaded range ...
Atwood, Joshua P., Meyerson, Laura A.
core   +2 more sources

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

Identification of blaESBL- and blaCARBA- Positive Multi-Drug Resistant Mixta calida Isolates from Distinct Human Hosts

International Journal of Medical Microbiology
Objective: This study aimed to investigate the identification of blaCARBA-positive multidrug-resistant Mixta calida isolates from human hosts and to elucidate their genomic determinants in a species-wide context.
Francesca McDonagh, Kate Ryan, Aneta Kovářová, Anna Tumeo, Christina Clarke, Martin Cormican, Georgios Miliotis   +6 more
doaj   +1 more source

Decrypting cancer's spatial code: from single cells to tissue niches

Molecular Oncology, EarlyView.
Spatial transcriptomics maps gene activity across tissues, offering powerful insights into how cancer cells are organised, switch states and interact with their surroundings. This review outlines emerging computational, artificial intelligence (AI) and geospatial approaches to define cell states, uncover tumour niches and integrate spatial data with ...
Cenk Celik, Shi Pan, Eloise Withnell, Hou Wang Lam, Maria Secrier   +4 more
wiley   +1 more source

Spatiotemporal and genomic analysis of carbapenem resistance elements in Enterobacterales from hospital inpatients and natural water ecosystems of an Irish city

Microbiology Spectrum
Carbapenemase-producing Enterobacterales (CPE) is a diverse group of often multidrug-resistant organisms. Surveillance and control of infections are complicated due to the inter-species spread of carbapenemase-encoding genes (CEGs) on mobile genetic ...
Mark Maguire, Carlos Serna, Natalia Montero Serra, Aneta Kovarova, Louise O’Connor, Niamh Cahill, Brigid Hooban, Niall DeLappe, Wendy Brennan, Genevieve Devane, Martin Cormican, Dearbháile Morris, Simone C. Coughlan, Georgios Miliotis, Bruno Gonzalez-Zorn, Liam P. Burke   +15 more
doaj   +1 more source