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杂合临床分离株81-B-5的全基因组序列

Whole Genome Sequence of the Heterozygous Clinical Isolate 81-B-5.

作者信息

Cuomo Christina A, Shea Terrance, Yang Bo, Rao Reeta, Forche Anja

机构信息

Infectious Disease and Microbiome Program, and

Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, Massachusetts 02142.

出版信息

G3 (Bethesda). 2017 Sep 7;7(9):2883-2889. doi: 10.1534/g3.117.043547.

Abstract

is a diploid, heterozygous yeast that is an opportunistic fungal pathogen in immunocompromised patients. This species also is utilized for fermenting cocoa beans during chocolate production. One major concern in the clinical setting is the innate resistance of this species to the most commonly used antifungal drug fluconazole. Here, we report a high-quality genome sequence and assembly for the first clinical isolate of , strain 81-B-5, into 11 scaffolds generated with PacBio sequencing technology. Gene annotation and comparative analysis revealed a unique profile of transporters that could play a role in drug resistance or adaptation to different environments. In addition, we show that, while 82% of the genome is highly heterozygous, a 2.0 Mb region of the largest scaffold has undergone loss of heterozygosity. This genome will serve as a reference for further genetic studies of this pathogen.

摘要

是一种二倍体杂合酵母,在免疫功能低下的患者中是一种机会性真菌病原体。该物种也用于巧克力生产过程中可可豆的发酵。临床环境中的一个主要问题是该物种对最常用的抗真菌药物氟康唑具有天然抗性。在这里,我们报告了首个临床分离株81 - B - 5的高质量基因组序列和组装结果,该序列由PacBio测序技术生成,组装成11个支架。基因注释和比较分析揭示了转运蛋白的独特图谱,这些转运蛋白可能在耐药性或对不同环境的适应性中发挥作用。此外,我们表明,虽然82%的基因组是高度杂合的,但最大支架上的一个2.0 Mb区域已经发生了杂合性缺失。该基因组将作为进一步研究该病原体遗传学的参考。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9b9f/5592916/3838bb205514/2883f1.jpg

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