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三代測序探索者每周文獻(xiàn)精選(08.22-08.28)

欄目:公司動(dòng)態(tài) 發(fā)布時(shí)間:2022-08-30

01

Identifying and correcting repeat-calling errors in nanopore sequencing of telomeres
https://doi.org/10.1186/s13059-022-02751-6
雜志:Genome Biology(IF=17.906)
發(fā)表時(shí)間:2022.08.26
作者:Kar-Tong Tan(Dana-Farber Cancer Institute)
通訊作者:李恒(Dana-Farber Cancer Institute)
解讀鏈接:GB | Nanopore測序數(shù)據(jù)中端粒所在處序列repeat-calling錯(cuò)誤的鑒定和糾正

Fig1. Strand-specific nanopore basecalling errors are pervasive at telomeres.


亮點(diǎn):作者在將nanopore序列比對到近測序和組裝的人類基因組CHM13中的端粒區(qū)域進(jìn)行分析時(shí)發(fā)現(xiàn),基因組端粒區(qū)域經(jīng)常以鏈特異性的方式被錯(cuò)誤地標(biāo)記為其他類型的重復(fù)。為了解決端粒上的這些堿基calling錯(cuò)誤,作者通過提供更多的端粒訓(xùn)練示例來調(diào)整nanopore堿基calling程序。在訓(xùn)練數(shù)據(jù)上可以看到在端粒和亞端粒區(qū)域的basecalls準(zhǔn)確性顯著改善,并在染色體末端的錯(cuò)誤明顯減少。




02

Evybactin is a DNA gyrase inhibitor that selectively kills Mycobacterium tuberculosis
https://www.nature.com/articles/s41589-022-01102-7
雜志:Nature Chemical Biology(IF=16.174)
發(fā)表時(shí)間:2022.08.22
作者:Yu Imai(Shinshu University
通訊作者:Frédéric J. Veyrier(INRS-Centre Armand-Frappier Santé Biotechnologie)

Fig2. The BGC of evybactin. Gene alignment of the BGC of evybactin in the producer strain. A–E are NRPS genes, and T1 and T2 are transporter genes.


亮點(diǎn):The biosynthetic gene cluster (BGC) of evybactin was determined using bioinformatic analysis of the genome. The genome was sequenced by a combination of Nanopore and Illumina reads (Microbial Genome Sequencing Center (MiGS)) and assembled into two contigs with a total size of 5.5megabases.The BGC of evybactin was identified as NRPS with a core BGC spanning 49.6 kilobases.


03

Splicing QTL analysis focusing on coding sequences reveals mechanisms for disease susceptibility loci

https://www.nature.com/articles/s41467-022-32358-1
雜志:Nature Communications(IF=17.694)
發(fā)表時(shí)間:2022.08.24
作者:Kensuke Yamaguchi(Tokyo Medical and Dental University)
通訊作者:Yuta Kochi(Tokyo Medical and Dental University)

亮點(diǎn):We conducted long-read RNA-sequencing for the CDSI isoforms (37 isoforms in total), whose i-rQTL signals were co-localized with disease GWAS signals and whose unique splice junctions showed significant sQTL signals in LeafCutter analysis (FDR?≤?0.05). The cDNAs were sequenced by MinION (Oxford Nanopore Technologies). We performed conventional long-read RNA-seq using 300?ng of total RNA from LCL and THP-1, then sequenced them using GridION X5 (Oxford Nanopore Technologies).



04

Evolution of longitudinal division in multicellular bacteria of the Neisseriaceae family
https://www.nature.com/articles/s41467-022-32260-w
雜志:Nature Communications(IF=17.694)
發(fā)表時(shí)間:2022.08.22
作者:Sammy Nyongesa(INRS-Centre Armand-Frappier Santé Biotechnologie)
通訊作者:Frédéric J. Veyrier(INRS-Centre Armand-Frappier Santé Biotechnologie)

Fig4.Core genome-based phylogeny of rod-shaped, coccoid and MuLDi Neisseriaceae.

亮點(diǎn): The Neisseriales order comprises the family Chromobacteriaceae and the family Neisseriaceae and more recently three additional families have been suggested, AquaspirillaceaeChitinibacteraceae and Leeiaceae. The family Neisseriaceae includes 12 genera . We selected species from each of these Neisseriaceae genera and used SMRT (PacBio) and Minion (Nanopore) technologies to obtain 21 closed genomes . Genomes obtained in this study were combined with Neisseriaceae draft genomes from the NCBI database to calculate the Average Nucleotide Identity (ANI). This enabled us to identify 75 Neisseriaceae species with genome ANI?>?96%. 


05

Genomic Variation in the Tea Leafhopper Reveals the Basis of Adaptive Evolution
https://doi.org/10.1016/j.gpb.2022.05.011
雜志:Genomics, Proteomics & Bioinformatics(IF=6.409)
發(fā)表時(shí)間:2022.08.28
作者:Qian Zhao(福建農(nóng)林大學(xué))
通訊作者:Minsheng You(福建農(nóng)林大學(xué))

Fig5. Genomic characterization of Empoasca onukii and comparison with other insect genomes. A. Genomic characterization of the sequenced E. onukii. Track


亮點(diǎn): In Asia, the tea green leafhopper (TGL), Empoasca onukii (Hemiptera: Cicadellidae), represents the most devastating pest across tea plantations, causing up to 50% economic loss of tea production annually. We generated a chromosome-level genome assembly of the E. onukii by integrating Illumina short reads, Oxford Nanopore Technologies (ONT) long reads, and high-throughput chromosome conformation capture (Hi-C). This high-quality genome resource enabled us to investigate the genetic basis of chemoreception and detoxification in this insect, key to adapting to new environments.







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