whole-genome

全基因组
  • 文章类型: Journal Article
    背景:幼儿呼吸道合胞病毒(RSV)疾病的范围从轻度感冒症状到需要住院治疗的严重症状,有时会导致死亡。研究表明,RSV亚型或系统谱系与RSV疾病严重程度之间存在统计关联,尽管这些结果不一致。RSV基因编码区或残基内的变异与RSV疾病严重程度之间的关联在很大程度上尚未被研究。
    方法:来自罗切斯特感染RSV的儿童(<8个月大)的鼻拭子,使用了1977年至1998年之间在第一个寒冷季节临床表现为轻度或重度疾病的纽约州。使用重叠PCR和下一代测序获得全基因组RSV序列。进行了全基因组系统发育和非系统发育统计方法以将RSV基因型与疾病严重程度相关联。
    结果:RSVB亚型与疾病严重程度有统计学关联。还发现了轻度/重度性状的系统发育聚类与疾病严重程度之间的显着关联。GA1进化枝序列与严重疾病相关,而GB1与轻度疾病相关。G和M2-2基因变异均与疾病严重程度显着相关。我们鉴定了G基因中的16个残基和M2-2RSV基因中的3个残基与疾病严重程度相关。
    结论:这些结果表明,RSV的系统发育谱系和G或M2-2基因的遗传变异可能与首次感染的幼儿的疾病严重程度有关。
    BACKGROUND: Respiratory Syncytial Virus (RSV) disease in young children ranges from mild cold symptoms to severe symptoms that require hospitalization and sometimes result in death. Studies have shown a statistical association between RSV subtype or phylogenic lineage and RSV disease severity, although these results have been inconsistent. Associations between variation within RSV gene coding regions or residues and RSV disease severity has been largely unexplored.
    METHODS: Nasal swabs from children (< 8 months-old) infected with RSV in Rochester, NY between 1977-1998 clinically presenting with either mild or severe disease during their first cold-season were used. Whole-genome RSV sequences were obtained using overlapping PCR and next-generation sequencing. Both whole-genome phylogenetic and non-phylogenetic statistical approaches were performed to associate RSV genotype with disease severity.
    RESULTS: The RSVB subtype was statistically associated with disease severity. A significant association between phylogenetic clustering of mild/severe traits and disease severity was also found. GA1 clade sequences were associated with severe disease while GB1 was significantly associated with mild disease. Both G and M2-2 gene variation was significantly associated with disease severity. We identified 16 residues in the G gene and 3 in the M2-2 RSV gene associated with disease severity.
    CONCLUSIONS: These results suggest that phylogenetic lineage and the genetic variability in G or M2-2 genes of RSV may contribute to disease severity in young children undergoing their first infection.
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  • 文章类型: Journal Article
    我们提出了一种整合全基因组多组数据的创新策略,它通过利用多任务编码器从高维组学数据中导出的隐藏层特征来促进自适应合并。对八个基准癌症数据集的经验评估证实,我们提出的框架超过了癌症亚型的比较算法,提供优越的亚型结果。在这些子类型结果的基础上,我们建立了一个强大的管道来识别全基因组生物标志物,发掘195个重要的生物标志物。此外,我们进行了详尽的分析,以评估在癌症亚型分型过程中,在全基因组水平上每个组学和非编码区特征的重要性.我们的研究表明,组学和非编码区特征都会对癌症的发展和生存预后产生重大影响。这项研究强调了整合全基因组数据在癌症研究中的潜在和实际意义。证明了全面基因组表征的效力。此外,我们的发现为采用深度学习方法的多组学分析提供了有见地的观点.
    We present an innovative strategy for integrating whole-genome-wide multi-omics data, which facilitates adaptive amalgamation by leveraging hidden layer features derived from high-dimensional omics data through a multi-task encoder. Empirical evaluations on eight benchmark cancer datasets substantiated that our proposed framework outstripped the comparative algorithms in cancer subtyping, delivering superior subtyping outcomes. Building upon these subtyping results, we establish a robust pipeline for identifying whole-genome-wide biomarkers, unearthing 195 significant biomarkers. Furthermore, we conduct an exhaustive analysis to assess the importance of each omic and non-coding region features at the whole-genome-wide level during cancer subtyping. Our investigation shows that both omics and non-coding region features substantially impact cancer development and survival prognosis. This study emphasizes the potential and practical implications of integrating genome-wide data in cancer research, demonstrating the potency of comprehensive genomic characterization. Additionally, our findings offer insightful perspectives for multi-omics analysis employing deep learning methodologies.
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  • 文章类型: Journal Article
    一种称为Bibersteiniatrehalosi的条件致病性细菌栖息在反刍动物的上呼吸道,并正在成为肺炎的重要原因。尤其是山羊。在这项工作中,我们鉴定了从死山羊肺分离出的革兰氏阴性菌菌株,被命名为M01。通过将其形态和生化特征的结果与16SrRNA基因序列分析的研究相结合,该分离株被鉴定为海藻芽孢杆菌。根据抗生素药敏试验,该分离株被证明对β-内酰胺具有抗性,四环素,和氨酚。发现其基因组包含2,115个编码基因和使用全基因组测序测量2,345,568bp的环状染色体。VFBD数据库的注解,分离株M01有4个毒力基因编码3个毒力因子。CARD数据库显示其基因组具有两个抗生素抗性基因。基于致病性测试,分离株M01对小鼠具有高致病性,主要引起肺炎,LD50为1.31×107CFU/ml。此外,组织病理学表现为肺泡结构缺失和肺部炎症细胞浸润。因此,目前的研究可以为将来在山羊中流行的预防和控制策略提供足够的信息。
    A conditionally pathogenic bacterium called Bibersteinia trehalosi inhabits the upper respiratory tract of ruminants and is becoming a significant cause of pneumonia, especially in goats. In this study, we identified a gram-negative bacteria strain isolated from dead goat\'s lungs, which was named M01. By integrating the outcomes of its morphological and biochemical characterization with the investigation of the 16S rRNA gene sequence analysis, the isolate was identified as B. trehalosi. Based on antibiotic susceptibility tests, the isolate was shown to be resistant to β-lactams, tetracyclines, and amphenicols. Its genome was discovered to comprise 2115 encoded genes and a circular chromosome measuring 2,345,568 bp using whole genome sequencing. Annotation of the VFBD database revealed that isolate M01 had four virulence genes encoding three virulence factors. The CARD database revealed that its genome has two antibiotic-resistance genes. Based on pathogenicity testing, isolate M01 was highly pathogenic to mice, primarily causing pneumonia, with an LD50 of 1.31 × 107 CFU/ml. Moreover, histopathology showed loss of alveolar structure and infiltration of lung inflammatory cells. Hence, the current study could provide sufficient information for prevention and control strategies for future epidemics of B. trehalosi in goat species.
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  • 文章类型: Journal Article
    我们报告了在衣原体感染病例中从流产的山羊胎儿中回收的鹦鹉衣原体的完整基因组序列。这个1,152,497bp的基因组和7,552bp的隐蔽质粒为衣原体病原体菌株的遗传多样性提供了新的见解,特别是那些引起小反刍动物感染的菌株。
    We report the complete genome sequence of the Chlamydia psittaci АМК-16, recovered from the aborted caprine fetus during a case of chlamydia infection. This 1,152,497-bp genome with 7,552-bp cryptic plasmid provides novel insights into the genetic diversity of chlamydia agent strains particularly those causing the infection in small ruminants.
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  • 文章类型: Case Reports
    Wickerhamiella是一种主要从环境样品中分离的出芽酵母,已经检测到40种。从人类临床样品中分离的酵母通常只含有三种:W.infanticola,W.pararugosa和W.sorbophila。在这项研究中,我们于2022年从日本一名有B细胞前体淋巴细胞白血病病史的6岁女性的血液样本中分离出热带W.尽管通过常规微生物学检查将该菌株在形态上鉴定为念珠菌属,随后通过对核糖体DNA(rDNA)的内部转录间隔区(ITS)进行测序,将其鉴定为热带W.该分离株在ERG11和FKS1中具有与唑和棘白菌素抗性相关的氨基酸取代,分别,在念珠菌中,对氟康唑和米卡芬净表现出中等抗性。患者成功接受米卡芬净治疗。此外,基质辅助激光解吸/电离质谱(MALDI-MS)检测到三个新峰,表明MALDI-MS分析可用于在常规微生物学检查中快速检测Wickerhamiella物种。
    Wickerhamiella is a genus of budding yeast that is mainly isolated from environmental samples, and 40 species have been detected. The yeast isolated from human clinical samples usually only contain three species: W. infanticola, W. pararugosa and W. sorbophila. In this study, we isolated W. tropicalis from a blood sample of a six-year-old female with a history of B-cell precursor lymphoblastic leukemia in Japan in 2022. Though the strain was morphologically identified as Candida species by routine microbiological examinations, it was subsequently identified as W. tropicalis by sequencing the internal transcribed spacer (ITS) of ribosomal DNA (rDNA). The isolate had amino acid substitutions in ERG11 and FKS1 associated with azole and echinocandin resistance, respectively, in Candida species and showed intermediate-resistant to fluconazole and micafungin. The patient was successfully treated with micafungin. Furthermore, matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS) detected three novel peaks that are specific for W. tropicalis, indicating that MALDI-MS analysis is useful for rapid detection of Wickerhamiella species in routine microbiological examinations.
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  • 文章类型: Journal Article
    黄单胞菌是辣椒细菌斑点(BSP)的主要病原体,构成了重大的全球挑战,导致辣椒种植者严重落叶和产量损失。我们介绍了8个X的全基因组序列。越南与BSP相关的Euvesicatoria菌株。这些基因组有助于在X.euvesicatoria基因组的全球样本中代表辣椒生产区域,能够制定精确的全球疾病管理策略。
    Xanthomonas euvesicatoria the primary causal agent of bacterial spot of pepper (BSP), poses a significant global challenge, resulting in severe defoliation and yield losses for pepper growers. We present the whole genome sequences of eight X. euvesicatoria strains associated with BSP in Vietnam. These genomes contribute to representation of pepper production regions in the global sample of X. euvesicatoria genomes, enabling the development of precise global disease management strategies.
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  • 文章类型: Journal Article
    海洋红色酵母,sphaerocarpum红孢子菌,通常用于生产脂质和类胡萝卜素。在之前的研究中,我们证明了海洋衍生的R.sphaerocarpumGDMCC60679可以有效地去除氨氮,并表现出虾的多种益生菌功能,凡纳滨对虾.这里,我们使用来自IlluminaPE和PacBioCLR读取的数据的组合进行了菌株GDMCC60679的基因组组装。基因组的大小为18.03Mb,由32个重叠群组成,N50长度为1,074,774bp,GC含量为63%。基因组预计包含6092个蛋白质编码基因,对其中的5962进行了功能注释。特别检查了负责氨同化以及脂质和类胡萝卜素合成的代谢途径,以探索和表征有助于这些功能的基因。该菌株的全基因组测序和注释为揭示其突出生物学功能的分子机制奠定了基础,并将有助于我们进一步扩大酵母在红孢子菌中的新应用。
    A marine red yeast, Rhodosporidium sphaerocarpum, is generally used for the production of lipids and carotenoids. In a previous study, we demonstrated that a marine-derived R. sphaerocarpum GDMCC 60679 can efficiently remove ammonia nitrogen and exhibit multiple probiotic functions for shrimp, Litopenaeus vannamei. Here, we performed a genome assembly of the strain GDMCC 60679 using a combination of the data from Illumina PE and PacBio CLR reads. The genome has a size of 18.03 Mb and consists of 32 contigs with an N50 length of 1,074,774 bp and GC content of 63 %. The genome was predicted to contain 6092 protein-coding genes, 5962 of which were functionally annotated. Metabolic pathways responsible for the ammonia assimilation and the synthesis of lipids and carotenoids were particularly examined to explore and characterize genes contributing to these functions. Whole-genome sequence and annotation of the strain lays a foundation to reveal the molecular mechanism of its prominent biological functions and will facilitate us to further expand new applications of yeasts in Rhodosporidium.
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  • 文章类型: Journal Article
    沙门氏菌是全球食源性疾病和临床感染的主要原因。本研究旨在调查该药的耐药性,基因组特征,山西省食源性沙门氏菌及其蛋白表达.我们从患者粪便中分离出一株肠炎沙门氏菌,并将其命名为31A。使用抗菌药物敏感性试验确定31A对14种抗生素的耐药性。对31A菌株进行全基因组测序和定量蛋白质组学分析。使用各种数据库对耐药基因/蛋白质和毒力基因/蛋白质进行功能注释,例如VFDB,ARDB,CAZY,COG,KOG,卡,GO,和KEGG。这项研究的重点是了解与食物中毒有关的机制,并通过比较基因组学分析了31A的遗传进化。31A菌株属于ST11肠炎沙门氏菌,对β-内酰胺和喹诺酮类抗生素具有耐药性。31A的基因组中有70个耐药基因,321个毒力基因,12个SPI,和3个质粒复制子。这些耐药和毒力基因的功能注释表明,耐药基因主要参与防御机制以赋予抗生素抗性,而毒力基因主要与细胞运动有关。毒力基因之间有广泛的相互作用,其中包括SPI-1,SPI-2,鞭毛,菌毛,胶囊等等。31A菌株与ASM2413794v1和ASM130523v1密切相关,ASM2413794v1和ASM130523v1也是来自亚洲的ST11肠炎沙门氏菌菌株,起源于临床患者。动物,和食物。这些结果表明,来自不同来源的菌株之间的基因组差异最小,并且具有宿主间传播的潜力。毒力和耐药性相关蛋白的差异分析揭示了它们参与与人类疾病相关的途径,表明这些蛋白质介导细菌入侵和感染。基因组和蛋白质组信息的整合导致发现沙门菌随食物进入肠道后,可以通过各种耐酸机制在强酸环境中存活,然后侵入肠道上皮细胞发挥其作用。在这项研究中,我们采用基因组和蛋白质组学相结合的方法,全面分析了肠炎沙门氏菌31A的耐药性和毒力特征,重点探讨肠炎沙门氏菌在食物中毒中的致病机理。我们发现在生存过程中各种毒力因子的显著波动,入侵,以及肠炎沙门氏菌感染,共同促成了它的致病性。这些结果为源跟踪提供了重要信息,预防,并治疗由肠炎沙门氏菌引起的临床感染。
    Salmonella is a major cause of foodborne diseases and clinical infections worldwide. This study aimed to investigate the drug resistance, genomic characteristics, and protein expression of foodborne Salmonella in Shanxi Province. We isolated a strain of Salmonella Enteritidis from patient feces and designated it 31A. The drug resistance of 31A against 14 antibiotics was determined using an antimicrobial susceptibility test. Whole-genome sequencing and quantitative proteomic analysis were performed on the 31A strain. Functional annotation of drug resistance genes/proteins and virulence genes/proteins was conducted using various databases, such as VFDB, ARDB, CAZY, COG, KOG, CARD, GO, and KEGG. The focus of this study was understanding the mechanisms related to food poisoning, and the genetic evolution of 31A was analyzed through comparative genomics. The 31A strain belonged to ST11 Salmonella Enteritidis and showed resistance to β-lactam and quinolone antibiotics. The genome of 31A had 70 drug resistance genes, 321 virulence genes, 12 SPIs, and 3 plasmid replicons. Functional annotation of these drug resistance and virulence genes revealed that drug resistance genes were mainly involved in defense mechanisms to confer resistance to antibiotics, while virulence genes were mainly associated with cellular motility. There were extensive interactions among the virulence genes, which included SPI-1, SPI-2, flagella, fimbriae, capsules and so on. The 31A strain had a close relationship with ASM2413794v1 and ASM130523v1, which were also ST11 Salmonella Enteritidis strains from Asia and originated from clinical patients, animals, and food. These results suggested minimal genomic differences among strains from different sources and the potential for interhost transmission. Differential analysis of the virulence and drug resistance-related proteins revealed their involvement in pathways related to human diseases, indicating that these proteins mediated bacterial invasion and infection. The integration of genomic and proteomic information led to the discovery that Salmonella can survive in a strong acid environment through various acid resistance mechanisms after entering the intestine with food and then invade intestinal epithelial cells to exert its effects. In this study, we comprehensively analyzed the drug resistance and virulence characteristics of Salmonella Enteritidis 31A using a combination of genomic and proteomic approaches, focusing on the pathogenic mechanism of Salmonella Enteritidis in food poisoning. We found significant fluctuations in various virulence factors during the survival, invasion, and infection of Salmonella Enteritidis, which collectively contributed to its pathogenicity. These results provide important information for the source tracing, prevention, and treatment of clinical infections caused by Salmonella Enteritidis.
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  • 文章类型: Journal Article
    本研究旨在揭示从花生根瘤中分离出的乘客内生细菌阴沟肠杆菌S23,并支持负责非生物胁迫耐受性的分子机制和基因。
    除结瘤根瘤菌外,还有助于结瘤并促进植物发育活动的多种微生物。乘客内生菌(PE)是在没有任何选择压力的情况下意外穿透植物的内生菌,将它们保持在植物的内部组织中。PE具有促进植物发育和提高产量同时减少病原体感染和提高生物和非生物胁迫耐受性的特征。然而,缺乏关于乘客内生菌介导的非生物胁迫缓解的分子证据。
    制定这项研究是为了揭示阴沟肠杆菌S23的基因组序列草案,以及与植物生长促进和胁迫耐受性有关的基因和特征。
    将数据提交给PATRIC,并使用TORMES-1.0Unicycker工具对阴沟肠杆菌S23进行了完整的基因组研究。TORMES-1.0平台用于处理读取。用RAST工具包(RASTtk)注释S23序列。植物生长促进性状,如吲哚乙酸生产,铁载体分泌,胞外多糖的生产,生物膜的形成,磷酸盐溶解,并在正常情况下检查渗透物质的积累,7%NaCl和30%聚乙二醇修正条件,以确定它们承受盐和水分胁迫条件的能力,分别。
    我们报告阴沟肠杆菌S23的大小为4.82Mb,其中包含4511个蛋白质编码序列,71个转移RNA基因,3核糖体RNA中G+C一DNA含量为55.10%。功能分析显示大部分基因参与氨基酸的代谢,辅因子,维生素,应激反应,养分溶解(kdp,pho,pst),生物膜形成(pga)IAA生产(trp),铁载体生产(luc,fhu,fep,ent,ybd),防御,和毒力。结果表明,阴沟肠球菌S23在非生物胁迫条件下表现出多种植物促生长性状。
    我们的研究表明,预期基因和代谢途径的发现可能将这种细菌描述为一种环境友好的生物资源,通过多种胁迫下的几种作用机制来支持花生的生长。
    UNASSIGNED: This study aims to reveal the passenger endophytic bacterium Enterobacter cloacae S23 isolated from groundnut nodules and to underpin the molecular mechanism and genes responsible for abiotic stress tolerance.
    UNASSIGNED: A variety of microorganisms that contribute to nodulation and encourage plant development activity in addition to the nodulating Rhizobium. Passenger endophytes (PE) are endophytes that accidentally penetrate the plant without any selective pressure keeping them in the interior tissue of the plant. PE possesses characteristics that encourage plant development and boost output while reducing pathogen infection and improving biotic and abiotic stress tolerance. However, there is a lack of molecular evidence on the passenger endophyte-mediated alleviation of abiotic stresses.
    UNASSIGNED: This study was formulated to reveal the draft genome sequence of Enterobacter cloacae S23, as well as genes and characteristics involved in plant growth promotion and stress tolerance.
    UNASSIGNED: The data were submitted to PATRIC and the TORMES-1.0 Unicyclker tools were used to conduct a complete genome study of Enterobacter cloacae S23. The TORMES-1.0 platform was used to process the reads. RAST tool kit (RASTtk) was used to annotate the S23 sequence. The plant growth-promoting traits such as indole acetic acid production, siderophore secretion, production of extracellular polysaccharides, biofilm formation, phosphate solubilization, and accumulation of osmolytes were examined under normal, 7% NaCl and 30% polyethylene glycol amended conditions to determine their ability to withstand salt and moisture stressed conditions, respectively.
    UNASSIGNED: We report the size of Enterobacter cloacae S23 is 4.82Mb which contains 4511 protein-coding sequences, 71 transfer RNA genes, and 3 ribosomal RNA with a G+C content of DNA is 55.10%. Functional analysis revealed that most of the genes are involved in the metabolism of amino acids, cofactors, vitamins, stress response, nutrient solubilization (kdp, pho, pst), biofilm formation (pga) IAA production (trp), siderophore production (luc, fhu, fep, ent, ybd), defense, and virulence. The result revealed that E. cloacae S23 exhibited multiple plant growth-promoting traits under abiotic stress conditions.
    UNASSIGNED: Our research suggested that the discovery of anticipated genes and metabolic pathways might characterise this bacterium as an environmentally friendly bioresource to support groundnut growth through several mechanisms of action under multi-stresses.
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  • 文章类型: Journal Article
    生物膜形成的过程是复杂和多方面的,需要单个细胞分泌细胞外聚合物质(EPS),随后聚集并粘附到各种表面。由于与生物膜相关的微生物对抗微生物剂的抗性增加,生物膜的问题是公众健康的重要问题。当前的研究描述了生物膜的全基因组和相应功能,该生物膜抑制和根除被鉴定为NcarkanopsislucentensisEMB25的放线菌分离株。N.lucentensisEMB25具有6.5Mbp基因组,GC含量为71.62%。BLAST环形图像生成器(BRIG)的基因组分析显示,它与诺卡氏菌病NOCA502F密切相关。有趣的是,基于平均核苷酸同一性(ANI)分析反映的直系同源官能团,它是81.48%相似的阿凡达DSM4527。此外,它产生与N.arvandica类似的羊毛硫肽和线性唑(in)含e肽(LAP)。次生代谢产物搜索显示存在涉及萜烯的主要基因簇,ectoine,铁载体,兰肽,RIPP-like,和T1PKS生物合成。治疗24小时后,所述无细胞提取物有效地根除铜绿假单胞菌PseA的预先存在的生物膜。此外,分离的细菌对MRSA具有抗菌活性,金黄色葡萄球菌和枯草芽孢杆菌。总的来说,这一发现为BGC的鉴定提供了有价值的见解,其中含有在天然产物的生物合成中起作用的酶。具体来说,它揭示了这些BGC与蓝藻的功能方面。
    The process of biofilm formation is intricate and multifaceted, requiring the individual cells to secrete extracellular polymeric substances (EPS) that subsequently aggregate and adhere to various surfaces. The issue of biofilms is a significant concern for public health due to the increased resistance of microorganisms associated with biofilms to antimicrobial agents. The current study describes the whole genome and corresponding functions of a biofilm inhibiting and eradicating actinobacteria isolate identified as Nocardiopsis lucentensis EMB25. The N. lucentensis EMB25 has 6.5 Mbp genome with 71.62% GC content. The genome analysis by BLAST Ring Image Generator (BRIG) revealed it to be closely related to Nocardiopsis dassonvillei NOCA502F. Interestingly, based on orthologous functional groups reflected by average nucleotide identity (ANI) analysis, it was 81.48% similar to N. arvandica DSM4527. Also, it produces lanthipeptides and linear azole(in)e-containing peptides (LAPs) akin to N. arvandica. The secondary metabolite search revealed the presence of major gene clusters involved in terpene, ectoine, siderophores, Lanthipeptides, RiPP-like, and T1PKS biosynthesis. After 24 h of treatment, the cell-free extract effectively eradicates the pre-existing biofilm of P. aeruginosa PseA. Also, the isolated bacteria exhibited antibacterial activity against MRSA, Staphylococcus aureus and Bacillus subtilis bacteria. Overall, this finding offers valuable insights into the identification of BGCs, which contain enzymes that play a role in the biosynthesis of natural products. Specifically, it sheds light on the functional aspects of these BGCs in relation to N. lucentensis.
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