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- 저자 : Duan Jianping (검색결과 4 건)
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Duan Jianping,Liang Shimei,Zhu Zhenni,Yang Xinfeng,Li Ying,Xu Xin,Wang Jiazhen,Zhu Xuwei,Yao Lunguang 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
Antheraea pernyi is an edible insect with important economic value in both traditional and non-traditional ap plications. Elucidating the details of gene expression variation among different A. pernyi larval tissues will greatly improve our knowledge about A. pernyi biology and promote its protection and breeding. Here, tissue-based transcriptome and gene co-expression network analysis were performed for the fifth-instar larval tissues of testis, midgut, Malpighian tubule, head, trachea, silk gland, integument, hemocyte, ovary, and fat body. A total of 1,991 tissue-associated genes, including 62 transcription factor-encoding genes, were correlated with the development and functions of these tissues. Moreover, 10 gene co-expression modules that were highly corre lated with the tissues were also determined. The most important 30 genes with top connectivity in each module were identified as hub genes to form the core co-expression network with important biological functions in the corresponding tissues. Based on these resources, further in-depth studies should be conducted to determine the roles of candidate genes and transcription factors governing tissue development and trait formation in A. pernyi.
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A transcriptional atlas of the silk gland in Antheraea pernyi revealed by IsoSeq
Duan Jianping,Li Shanshan,Zhang Zhengtian,Yao Lunguang,Yang Xinfeng,Ma Sanyuan,Duan Nini,Wang Jiazhen,Zhu Xuwei,Zhao Ping 한국응용곤충학회 2023 Journal of Asia-Pacific Entomology Vol.26 No.2
Silk fibers spun by the silk gland of Antheraea pernyi have many unique properties and are of great value in genetic improvement and non-traditional applications. However, the complete transcriptional landscape and accurate genic annotation of the silk gland are yet to be conducted, which limits related studies on this organ. In this study, isoform sequencing revealed the full-length transcriptome of the A. pernyi silk gland, producing 12,572 high-confidence isoforms from 7,658 genes, among which more than 40 % of genes have not yet been annotated in the reference genome. Moreover, approximately 9 % of isoforms are computationally identified as long non-coding RNAs (lncRNAs). Up to 1,492 alternative splicing (AS) and 3,068 alternative polyadenylation (APA) events were revealed within this transcriptome. In addition, 2,569 putative transcription factors (TFs) belonging to 68 different families were first identified in A. pernyi genome, including 871 TFs in silk gland, and some TF families have undergone expansion or contraction. This study significantly improve our knowledge of the genes expressed in the silk gland of A. pernyi and provide a valuable resource for the in-depth study of silk protein synthesis and spinning, genetic improvement, and non-traditional applications in A. pernyi.
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Lei Du,Lina Wang,Hong Yang,Jianping Duan,Jianming Lai,Wei Wu,Shaohua Fan,Xiaoli Zhi 연세대학교의과대학 2021 Yonsei medical journal Vol.62 No.12
Purpose: The purpose of this study was to investigate the influences of sex comb on midleg like-2 (SCML2) on hepatocellular carcinoma (HCC) and potentially related mechanisms. Materials and Methods: SCML2 expression in tumor tissues and cells was analyzed using the TCGA database and/or qRT-PCR. The proliferation of HCC cells was detected by CCK-8, colony formation, and EdU assays. The migration and invasion of HCC cells were detected by transwell and wound healing assays. Apoptosis of HCC cells was determined by flow cytometry. Additionally, qRT-PCR and Western blot were used to detect the expression of SCML2 and Wnt/β-catenin/epithelial–mesenchymal transition (EMT) signaling. A xenograft model in mice was established to verify the in vitro findings. Results: We found that SCML2 was highly expressed in HCC tissues and cells and that high expression of SCML2 was correlated with poor prognosis in HCC patients. SCML2 overexpression promoted proliferation, invasion, and migration and repressed apoptosis of HCC cells. The reverse results were obtained in SCML2-silenced cells. Further, we found that SCML2 activated the Wnt/β-catenin/EMT pathway. SCML2 silencing reduced the protein levels of Wnt3a, β-catenin, N-cadherin, Vimentin, and Snail and enhanced E-cadherin protein expression both in vivo and in vitro. Conclusion: SCML2 silencing inhibits the proliferation, migration, and invasion of HCC cells by regulating the Wnt/β-catenin/EMT pathway.
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Mingsheng Zhong,Xi Liu,Feng Liu,Yulong Ren,Yunlong Wang,Jianping Zhu,Xuan Teng,Erchao Duan,Fan Wang,Huan Zhang,Mingming Wu,Yuanyuan Hao,Xiaopin Zhu,Ruonan Jing,Xiuping Guo,Ling Jiang,Yihua Wang,Jianmi 한국식물학회 2019 Journal of Plant Biology Vol.62 No.1
Starch is a major storage substance in cerealgrains, and starch biosynthesis is a complex process. In orderto elucidate regulation of the starch biosynthesis pathway, wescreened a series of rice (Oryza sativa L.) endospermmutants. In this study, we identified a floury white-coreendosperm mutant named floury endosperm12 (flo12). Theflo12 mutant exhibited loosely packed starch granules and alower thousand kernel weight compared to wild type. Semithinsections revealed that compound starch grains (SG) inflo12 interior endosperm cells were developed abnormally. Furthermore, amylose content was decreased, while totalprotein content was significantly increased in flo12 grains. Map-based cloning showed that FLO12 encodes rice alanineaminotransferase 1 (OsAlaAT1). OsAlaAT1 is highly expressedin developing endosperm. Subcellular localization showedthat OsAlaAT1 is localized in the cytosol. Moreover, theexpression of most starch synthesis-related genes wasdecreased, while most of the storage protein coding geneshad elevated expression levels in the flo12 mutant. Inaddition, overexpression of the OsAlaAT1 gene increasedgrain weight. In brief, we demonstrated that OsAlaAT1regulates carbon and nitrogen metabolism, which provides anew insight for the improvement of rice quality and yield.
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