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Activin β Is Critical for Larval-Pupal Transition in the 28 Spotted Lady Beetle Henosepilachna vigintioctopunctata.
Arch Insect Biochem Physiol
January 2025
State Key Laboratory of Agricultural and Forestry Biosecurity, Education Ministry Key Laboratory of Integrated Management of Crop Diseases and Pests/State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Department of Entomology, College of Plant Protection, Nanjing Agricultural University, Nanjing, China.
The activin cascade is activated when a pair of extracellular ligand (Myoglianin, Myo; Activin β, Actβ; Dawdle, Daw) binds to two pairs of transforming growth factor β (TGF) serine-threonine receptor kinases, TGF-β type I (Baboon, Babo) and II receptors. However, the roles of activin way have not well been explored in non-Drosophilid insects. In the present paper, we compared the functions of Activin β (Actβ) ligand and receptor isoform BaboB in post-embryonic development in a defoliating ladybird Henosepilachna vigintioctopunctata.
View Article and Find Full Text PDFThe BEN domain protein LIN-14 coordinates neuromuscular positioning during epidermal maturation.
iScience
January 2025
Department of Neurobiology, School of Biological Sciences, University of California, San Diego, La Jolla, CA 92093, USA.
Development and function of an organism depend on coordinated inter-tissue interaction. How such interactions are maintained during tissue renewal and reorganization remains poorly understood. Here, we find that BEN domain transcription factor LIN-14 is required in epidermis for maintaining the position of motor neurons and muscles during developmental tissue reorganization.
View Article and Find Full Text PDFA simple inland culture system provides insights into ascidian post-embryonic developmental physiology.
Open Biol
January 2025
Michael Sars Centre, University of Bergen, Bergen, Norway.
Maintenance and breeding of experimental organisms are fundamental to life sciences, but both initial and running costs, and hands-on zootechnical demands can be challenging for many laboratories. Here, we first aimed to further develop a simple protocol for reliable inland culture of tunicate model species of the genus. We cultured both and in controlled experimental conditions, with a focus on dietary variables, and quantified growth and maturation parameters.
View Article and Find Full Text PDFThe piRNA protein Asz1 is essential for germ cell and gonad development in zebrafish and exhibits differential necessities in distinct types of germ granules.
PLoS Genet
January 2025
Department of Developmental Biology and Cancer Research, The Hebrew University of Jerusalem Faculty of Medicine, Ein- Kerem Campus, Jerusalem, Israel.
Germ cells are essential for fertility, embryogenesis, and reproduction. Germline development requires distinct types of germ granules, which contains RNA-protein (RNP) complexes, including germ plasm in embryos, piRNA granules in gonadal germ cells, and the Balbiani body (Bb) in oocytes. However, the regulation of RNP assemblies in zebrafish germline development are still poorly understood.
View Article and Find Full Text PDFA Hot-Swappable Genetic Switch: Building an inducible and trackable functional assay for the essential gene MEDIATOR 21.
bioRxiv
December 2024
Department of Biology, University of Washington, Seattle, WA 98195-1800 USA.
Essential genes, estimated at approximately 20% of the genome, are broadly expressed and required for reproductive success. They are difficult to study, as interfering with their function leads to premature death. Transcription is one of the essential functions of life, and the multi-protein Mediator complex coordinates the regulation of gene expression at nearly every eukaryotic promoter.
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