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Transcription introduces torsional stress in the DNA fiber causing it to transition from a relaxed to a supercoiled state that can propagate across several kilobases and modulate the binding and activity of DNA-associated proteins. As a result, transcription at one locus has the potential to impact nearby transcription events. In this study, we asked how DNA supercoiling affects histone modifications and transcription of neighboring genes in the multicellular eukaryote .
View Article and Find Full Text PDFUrbanization as a major driver of global change modifies biodiversity patterns and the abundance and interactions among species or functional species groups. For example, urbanization can negatively impact both predator-prey and mutualistic relationships. However, empirical studies on how urbanization modifies biotic, particularly multitrophic, interactions are still limited.
View Article and Find Full Text PDFHiking Trails Facilitate the Spread of a Native High-Arctic Species.
Ecol Evol
January 2025
Dynamic Macroecology/Land Change Science Swiss Federal Institute for Forest, Snow and Landscape Research WSL Birmensdorf Switzerland.
High-Arctic environments are facing an elevated pace of warming and increasing human activities, making them more susceptible to the introduction and spread of alien species. We investigated the role of human disturbance in facilitating the spread of a native plant () in a high-Arctic natural environment close to Isfjord Radio station and along adjacent hiking trails at Kapp Linné, Svalbard. We reconstructed the spatial pattern of the arrival and spread of at Kapp Linné by combining historical records of the species occurrence (1928-2018) with a contemporary survey of the plant abundance along the main hiking trail (2023 survey) and tested the relative effects of altitude and proximity to hiking trails on the species density via a generalised linear model (GLM).
View Article and Find Full Text PDFThe recent landscape of RSV vaccine research.
Ther Adv Vaccines Immunother
January 2025
Oxford Vaccine Group, Department of Paediatrics, University of Oxford, Oxford, OX1 2JD, UK.
Respiratory syncytial virus (RSV) causes a significant burden of acute respiratory illness across all ages, particularly for infants and older adults. Infants, especially those born prematurely or with underlying health conditions, face a high risk of severe RSV-related lower respiratory tract infections (LRTIs). Globally, RSV contributes to millions of LRTI cases annually, with a disproportionate burden in low- and middle-income countries (LMICs).
View Article and Find Full Text PDFFactors Regulating the Potential for Freshwater Mineral Soil Wetlands to Function as Natural Climate Solutions.
Wetlands (Wilmington)
January 2025
Department of Physical and Environmental Sciences, University of Toronto Scarborough, Toronto, ON Canada.
There are increasing global efforts and initiatives aiming to tackle climate change and mitigate its impacts via natural climate solutions (NCS). Wetlands have been considered effective NCS given their capacity to sequester and retain atmospheric carbon dioxide (CO) while also providing a myriad of other ecosystem functions that can assist in mitigating the impacts of climate change. However, wetlands have a dual impact on climate, influencing the atmospheric concentrations of both CO and methane (CH).
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