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  • Open Access

    VIEWPOINT

    Aneuploidy: An opportunity within single-cell RNA sequencing analysis

    JOE R. DELANEY*

    BIOCELL, Vol.45, No.5, pp. 1167-1170, 2021, DOI:10.32604/biocell.2021.017296 - 12 July 2021

    Abstract Single-cell sequencing data has transformed the understanding of biological heterogeneity. While many flavors of single-cell sequencing have been developed, single-cell RNA sequencing (scRNA-seq) is currently the most prolific form in published literature. Bioinformatic analysis of differential biology within the population of cells studied relies on inferences and grouping of cells due to the spotty nature of data within individual cell scRNA-seq gene counts. One biologically relevant variable is readily inferred from scRNA-seq gene count tables regardless of individual gene representation within single cells: aneuploidy. Since hundreds of genes are present on chromosome arms, high-quality inferences More >

  • Open Access

    ARTICLE

    Rapid Identification of a Candidate Gene Related to Fiber Strength Using a Superior Chromosome Segment Substitution Line from Gossypium hirsutum × Gossypium barbadense via Bulked Segregant RNA-Sequencing

    Qi Zhang1,#, Pengtao Li2,#, Aiying Liu1, Shaoqi Li1, Quanwei Lu2, Qun Ge1, Junwen Li1, Wankui Gong1, Xiaoying Deng1, Haihong Shang1,3, Yuzhen Shi1,*, Youlu Yuan1,3,*

    Phyton-International Journal of Experimental Botany, Vol.90, No.3, pp. 837-858, 2021, DOI:10.32604/phyton.2021.014437 - 30 March 2021

    Abstract Cotton is the most widely cultivated commercial crop producing natural fiber around the world. As a critical trait for fiber quality, fiber strength principally determined during the secondary wall thickening period. Based on the developed BC5F3:5 CSSLs (chromosome segment substitution lines) from Gossypium hirsutum CCRI36 × G. barbadense Hai 1, the superior MBI9915 was chosen to construct the secondary segregated population BC7F2 with its recurrent parent CCRI36, which was subsequently subjected to Bulk segregant RNA-sequencing (BSR-seq) for rapid identification of candidate genes related to fiber strength. A total of 4 fiber-transcriptome libraries were separately constructed and sequenced, including… More >

  • Open Access

    ARTICLE

    Musk secretion in muskrats (Ondatra zibethicus L.): association with lipid and cholesterol metabolism-related pathways

    TIANXIANG ZHANG1,#, MEISHAN ZHANG1,#, MINGHUI SHI1,#, WEIJIANG JIN1,#, SHUMIAO ZHANG2,#, MENGYUAN FAN3, YIMENG LI1, YUPING MENG2, XUELIN TIAN4, SHUQIANG LIU1,*, DEFU HU1,*

    BIOCELL, Vol.45, No.2, pp. 281-306, 2021, DOI:10.32604/biocell.2021.010277 - 19 February 2021

    Abstract Male muskrats (Ondatra zibethicus L.) secrete musk from their scent glands during musk secretion season. Musk plays an important role as a communication pheromone during the breeding season. In this study, gas chromatography–mass spectrometry (GC–MS) was used to analyze the main components of musk. The GC–MS results after methyl esterification showed that 71.55% of the musk is composed of fatty acids. The other components of muskrat musk include cholesterol (9.31%) and other organics. Transcriptome comparison between musk secretion and non-secretion seasons showed significant changes in the scent glands for 53 genes involved in fatty acid and More >

  • Open Access

    ARTICLE

    Dynamic Expression Analysis and Introgressive Gene Identification of Fiber Length Using Chromosome Segment Substitution Lines from G. hirsutum × G. barbadense

    Pengtao Li1,2,#,*, Quanwei Lu1,#, Xianghui Xiao3, Rui Yang3, Xixi Duan1

    Phyton-International Journal of Experimental Botany, Vol.90, No.1, pp. 129-144, 2021, DOI:10.32604/phyton.2021.012928 - 20 November 2020

    Abstract Fiber length is a critical trait that principally determines cotton spinning quality, while Upland cotton as the most widely cultivated Gossypium species around the world subjects to the relatively ordinary fiber performance. Chromosome segment substitution lines (CSSLs) have been introduced in cotton breeding to take full advantages of superior fiber quality and high yield from Sea Island and Upland cotton, respectively, which serve as ideal materials for elucidating the genetic mechanism of complex quantitative traits. Here, three CSSLs derived from CCRI45 (G. hirsutum) × Hai1 (G. barbadense), two superior (MBI7561 and MBI7747) and one (MBI7285) with ordinary… More >

  • Open Access

    ARTICLE

    Expression profiling of immune cells in systemic lupus erythematosus by single-cell RNA sequencing

    XIANLIANG HOU1,2,3,#, DONGE TANG1,#, FENGPING ZHENG1,#, MINGLIN OU3, YONG XU1, HUIXUAN XU1, XIAOPING HONG4, XINZHOU ZHANG1, WEIER DAI5, DONGZHOU LIU4,*, YONG DAI1,*

    BIOCELL, Vol.44, No.4, pp. 559-582, 2020, DOI:10.32604/biocell.2020.011022 - 24 December 2020

    Abstract Systemic lupus erythematosus (SLE) is a systemic autoimmune disease characterized by abnormal cellular and humoral immune responses and excessive autoantibody production. The precise pathologic mechanism of SLE remains elusive. The advent of single-cell RNA sequencing (scRNA-seq) enables unbiased analysis of the molecular differences of cell populations at the single-cell level. We used scRNA-seq to profile the transcriptomes of peripheral blood mononuclear cells from an SLE patient compared with a healthy control (HC). A total of 16,021 cells were analyzed and partitioned into 12 distinct clusters. The marker genes of each cluster and the four major… More >

  • Open Access

    ARTICLE

    High-Throughput MicroRNA and mRNA Sequencing Reveals that MicroRNAs May Be Involved in Pectinesterase-Mediated Cold Resistance in Potato

    Chongchong Yan1, Qianqian Wang1, Nan Zhang2, Jiajia Wang1, Xuexiang Ren1, Bingjie Xue3, Xiaojing Pu4, Zhihong Xu4, Huajun Liao1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 561-586, 2020, DOI:10.32604/phyton.2020.010322 - 22 June 2020

    Abstract Since potato cultivars are sensitive to low temperature, cold injury severely affects the geographical distribution and yield of potato. Although some miRNAs have been identified in response to cold stress in plants, there is no report about the role of miRNAs in the response to cold stress in potato. Here, via high throughput sequencing, we described the profiling of cold stress response to miRNA and mRNA in potato. Two small RNA and six mRNA libraries were constructed and sequenced. 296 known and 211 novel miRNAs were identified, in which 34 miRNAs in Cold Group (CG)… More >

  • Open Access

    ARTICLE

    Genome-Wide Identification and Expression Profiling Suggest that Invertase Genes Function in Silique Development and the Response to Sclerotinia sclerotiorum in Brassica napus

    Jingsen Liu1,2, Jinqi Ma1,2, Ai Lin1,2, Chao Zhang1,2, Bo Yang1,2, Liyuan Zhang1,2, Lin Huang1,2, Jiana Li1,2,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 253-273, 2020, DOI:10.32604/phyton.2020.09334 - 22 April 2020

    Abstract Invertase (INV), a key enzyme in sucrose metabolism, irreversibly catalyzes the hydrolysis of sucrose to glucose and fructose, thus playing important roles in plant growth, development, and biotic and abiotic stress responses. In this study, we identified 27 members of the BnaINV family in Brassica napus. We constructed a phylogenetic tree of the family and predicted the gene structures, conserved motifs, cis-acting elements in promoters, physicochemical properties of encoded proteins, and chromosomal distribution of the BnaINVs. We also analyzed the expression of the BnaINVs in different tissues and developmental stages in the B. napus cultivar Zhongshuang 11 using qRT-PCR.… More >

  • Open Access

    ARTICLE

    FSPAM: A Feature Construction Method to Identifying Cell Populations in ScRNA-seq Data

    Amin Einipour1, Mohammad Mosleh1, *, Karim Ansari-Asl1, 2

    CMES-Computer Modeling in Engineering & Sciences, Vol.122, No.1, pp. 377-397, 2020, DOI:10.32604/cmes.2020.08496 - 01 January 2020

    Abstract The emergence of single-cell RNA-sequencing (scRNA-seq) technology has introduced new information about the structure of cells, diseases, and their associated biological factors. One of the main uses of scRNA-seq is identifying cell populations, which sometimes leads to the detection of rare cell populations. However, the new method is still in its infancy and with its advantages comes computational challenges that are just beginning to address. An important tool in the analysis is dimensionality reduction, which transforms high dimensional data into a meaningful reduced subspace. The technique allows noise removal, visualization and compression of high-dimensional data.… More >

  • Open Access

    ABSTRACT

    Gene Expression Profiling of Human Hepatocytes Grown on Differing Substrate Stiffness

    Fan Feng1, Tingting Xia1, Runze Zhao1, Mengyue Wang1, Li Yang1,*

    Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 131-131, 2019, DOI:10.32604/mcb.2019.07211

    Abstract Objective: To study the effects of different substrate stiffness on human hepatocytes using RNA sequencing (RNA-Seq) technology. The stiffness was corresponding to physiology and pathology stiffness of liver tissues.
    Results: With the aid of RNA-Seq technology, our study characterizes the transcriptome of hepatocytes cultured on soft, moderate, stiff and plastic substrates. Compared to soft substrate, our RNA-Seq results revealed 1131 genes that were up-regulated and 2534 that were down-regulated on moderate substrate, 1370 genes that were up-regulated and 2677 down-regulated genes on stiff substrate. Functional enrichment analysis indicated that differentially expressed genes were associated with More >

  • Open Access

    ABSTRACT

    The Effect of Short-and Long-Term Simulated Microgravity on Immune Cells

    Sufang Wang1,2, Wenjuan Zhao1,2, Guolin Shi1,2, Nu Zhang1,2, Chen Zhang1,2, Hui Yang1,2,*

    Molecular & Cellular Biomechanics, Vol.16, Suppl.2, pp. 100-100, 2019, DOI:10.32604/mcb.2019.07112

    Abstract Long-term space flight will be a major mission for International Space Administration. However, it has been shown that exposure to space flight result in immune system dysfunction. Therefore, understand the mechanism of immune response under microgravity condition is a key topic. Macrophage is one of the most important immune cells in human body, playing key roles in both innate and adaptive immune systems. In this research, we used mouse macrophages (RAW264.7) and collected samples at short-term (8 hour), mediate-term (24 hour) and long-term (48 hour) microgravity treatment. We measured cell proliferation, phagocytosis function and used More >

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