| 1 | Systematic analysis of clinical relevance and molecular characterization of m^(6)A in COVID-19 patients显示文摘N6-methyladenosine(m6A)is the most prevalent post-transcriptional RNA modification in mRNA and long non-coding RNAs of eukaryotes,and its biological functions are mediated by m6A writers,erasers and readers.1 A nuclear methyltransferase complex consisting of METTL3,METTL14,WTAP,VIRMA,ZC3H13,RBM15(or RBM15B),YWHAG,TRA2A and CAPRIN1 catalyzes the m6A modifications,acting as m6A writers.1 m6A demethylase ALKBH5 as well as m6A demethylase FTO mediate the demethylation of m6As,acting as the m6A erasers. | Sanqi An Zhouhua Xie Yanyan Liao Junjun Jiang Wenyi Dong Fuqiang Yin Wen-Xing Li Li Ye Jianyan Lin Hao Liang | 2022 | Genes & Diseases2022，9，5： | 1 |
| 3 | Karlodinium elegans sp. nov. (Gymnodiniales, Dinophyceae), a novel species isolated from the East China Sea in a dinofl agellate bloom显示文摘Abstract On May 24–29,2019,a harmful algal bloom occurred in Pingtan coastal areas,Fujian,southeast China,and caused mass mortality of cage-cultured fi sh.Two clonal cultures of an unknown naked dinofl agellate were set up from seawater samples taken during the bloom.The cultures were examined for morphological features,ultrastructure characters,photosynthetic pigments,the large subunit(LSU)of the rRNA gene,and the internal transcribed spacer(ITS)sequences,as well as acute toxicity analysis.The cell was unarmored,small-sized,and ovoid,and was characterized by elaborate striations on the epicone and hypocone.The nucleus was large,ellipsoid to oval or kidney-shaped,and centrally located in the cell.A long linear apical groove originated above the sulcus in the ventral epicone and extended to the dorsal side.An elongate,slit-like“ventral pore”was located on the left of the epicone,well away from the apical groove.The chloroplasts were yellowish brown,numerous,band like,and irregularly distributed in the cell periphery.Fucoxanthin was the main accessory pigment composition.Phylogeny topology reconstructed on partial LSU rDNA showed that the unknown dinofl agellate branched as a sister species to Karlodinium sp.(strain IFR981&IFR797,from France)and Karlodinium corrugatum(strain KDGSO08,from Australia),with genetic divergences of 0.6%and 3.3%,respectively.Based on the morphological and molecular phylogenetic analysis,we describe the novel dinofl agellate as Karlodinium elegans sp.nov.A toxicity assay revealed that the clonal culture of K.elegans(strain PTB601)had no adverse eff ect on brine shrimp(Artemia salina)and marine medaka(Oryzias melastigma),indicating it may not be a toxic species. | Jingyi CEN Jianyan WANG Lifen HUANG Yarou LIN Guangmao DING Yuzao QI Songhui LÜ | 2021 | Journal of Oceanology and Limnology2021，39，1： | 1 |
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