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Differential genome-wide expression profiles in response to high temperatures in the two body-color morphs of the pea aphid.
Int J Biol Macromol
December 2024
State Key Laboratory of Grassland Agro-Ecosystems, National Demonstration Center for Experimental Grassland Science Education, College of Pastoral Agricultural Science and Technology, Lanzhou University, Lanzhou 730020, China. Electronic address:
Global warming and extremely high temperatures affect insect survival and distribution. In this study, we characterized the gene expression profiles of red (PAR) and green (PAG) morphs of the pea aphid (Acyrthosiphon pisum) at three high temperatures (30 °C, 36 °C, and 38 °C) and three treatment durations (6 h, 12 h, and 24 h) by high-throughput sequencing. Both PAR and PAG increased the number of significantly differentially expressed genes as temperature and treatment duration increased, particularly for genes associated with stress resistance, lipid metabolism, cuticular protein expression, and the initiation of various regulatory mechanisms.
View Article and Find Full Text PDFAnalysis of Local Structure of Mechanical and Thermal Rearrangements in Glasses with the Atomic Cluster Expansion.
J Phys Chem B
November 2024
Department of Mathematics, University of British Columbia, Vancouver, British Columbia V6T 1Z2, Canada.
We explore the structural signatures of excitations in amorphous materials with the atomic cluster expansion (ACE), a universal and complete linear basis of descriptors of the atomic environment. Body-orderd linear classifiers are constructed that distinguish between active and inactive particles in three different model glass formers, in which structural relaxation occurs either through spontaneous thermal activation or by simple shear. We find that in binary mixtures, maximum prediction accuracy is already achieved with very few two-body correlations, while a polymer glass requires both two- and three-body correlations.
View Article and Find Full Text PDFDynamics of cardio-muscular networks in exercise and fatigue.
J Physiol
October 2024
Keck Laboratory for Network Physiology, Department of Physics, Boston University, Boston, Massachusetts, USA.
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- At the universe's origin, an imbalance between matter and antimatter favored matter, but the cause of this asymmetry is still unknown.
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Two novel genomes of fireflies with different degrees of sexual dimorphism reveal insights into sex-biased gene expression and dosage compensation.
Commun Biol
July 2024
Institute of Organismic and Molecular Evolution, Johannes Gutenberg University of Mainz, Hanns-Dieter-Hüsch-Weg 15, 55128, Mainz, Germany.
Sexual dimorphism arises because of divergent fitness optima between the sexes. Phenotypic divergence between sexes can range from mild to extreme. Fireflies, bioluminescent beetles, present various degrees of sexual dimorphism, with species showing very mild sexual dimorphism to species presenting female-specific neoteny, posing a unique framework to investigate the evolution of sexually dimorphic traits across species.
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