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Myogenic regulator factors (MRFs) are essential for skeletal muscle development in vertebrates, including fish. This study aimed to characterize the role of () in muscle development in Nile tilapia by cloning from muscle tissues. To explore the function of , CRISPR/Cas9 gene editing was employed.

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Instant and refrigerated acid soaking are commonly used in cocoon production to prevent or break diapause, and provide developable silkworm eggs for sericulture, while their mechanisms have not been fully understood. This study aims to investigate the mechanisms by which hydrochloric acid (HCl) or dimethyl sulfoxide (DMSO) promotes embryonic development in silkworm Bombyx mori, focusing on the chloride ion (Cl) related gene expression profiles. Our results revealed that the HCl treatment of up to 6 min enhanced hatchability in freshly picked and cold-stored eggs, whereas a slight decrease in hatchability was observed in those treated with DMSO for 40 min.

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We previously suggested that the signal transducer and activator of transcription 1 (STAT1) gene is autoregulated in an interferon (IFN)-dependent manner via a distal regulatory region approximately 5.5-6.2 kb upstream of the murine and human STAT1 promoters (designated 5.

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The awn is a bristle-like extension from the lemma of grass spikelets. In barley, the predominant cultivars possess long awns that contribute to grain yield and quality through photosynthesis. Barley is a useful cereal crop to investigate the mechanism of awn development as various awn morphological mutants are available.

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LINE-1-Induced Retrotransposition Affects Early Preimplantation Embryo DNA Integrity and Pluripotency.

Int J Mol Sci

November 2024

Laboratory of Medical Genetics and Human Reproduction, School of Health Sciences, Faculty of Medicine, University of Ioannina, 451 10 Ioannina, Greece.

Retrotransposable elements are implicated in genome rearrangements and gene expression alterations that result in various human disorders. In the current study, we sought to investigate the potential effects of long interspersed elements-1 (LINE-1) overexpression on the integrity and methylation of DNA and on the expression of three major pluripotency factors (OCT4, SOX2, NANOG) during the preimplantation stages of human embryo development. Human MI oocytes were matured in vitro to MII and transfected through intracytoplasmic sperm injection (ICSI) either with an EGFP vector carrying a cloned active human LINE-1 retroelement or with the same EGFP vector without insert as control.

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