白芷全基因组测序分析及 BGLU 基因家族分析
白芷为常用的药食同源的品种,既是临床常用中药,也是香料,用途十分广泛。为获取白芷全基因组序列信息,该研究用杭白芷叶片 DNA 为材料,采用 Nanopore 测序技术构建杭白芷全基因组数据库,并利用生物信息学方法对获得的核苷酸序列进行组装、功能注释以及进化分析研究。结果表明:(1)原始测序数据过滤后获得 662 Gb 三代数据,ReadN50 约为 32 932 bp,经过组装得到杭白芷基因组大小为 5.6 Gb,Contig N50 约为 806 638bp。(2)组装后的序列通过与 KOG、GO、KEGG 等功能数据库比对,得到了功能注释的基因共有 66.47%,KOG 功能注释结果表明杭白芷的蛋白功能主要集中在一般功能预测、翻译后修饰、蛋白质转换、伴侣以及信号转导机制;GO 功能分类表明杭白芷的基因集中在生物学过程及细胞组分;KEGG 通路注释表明参与代谢途径的基因占主要地位。(3)杭白芷的基因集中在 45 个 BGLU 家族基因。该研究首次利用第三代测序技术对杭白芷全基因组进行解析,为杭白芷的系统生物学研究奠定基础,有利于进一步深入开发和利用杭白芷,同时也对杭白芷中 BGLU 家族基因进行初步分析,为后续进一步研究 BGLU 在杭白芷生长发育中的功能提供了重要的理论基础。
ngelica dahurica is a common kind of medicine and food homology, which is not onlya common clinical traditional Chinese medicine, but also a spice, with a wide range of uses. Inorder to obtain the whole genome sequence information of A. dahurica, this study used A.dahurica var. formosana leaf DNA as material, and the Nanopore sequencing technology was usedto establish its nucleotide sequences database, then genome assembly, function annotation andevolution analysis were carried out by bioinformatic methods. The results were as follows: (1) 662Gb the third-generation data were obtained after the original sequencing data, with the Read N50 about 32 932 bp. The assembled A. dahurica var. formosana genome size was 5.6 Gb, contig N50being about 806 638 bp. (2) 66.47% of the genes from the assembled sequence got geneannotation after being compared with functional databases such as NR, KOG and KEGG. Theresult of KOG gene annotation was that the protein function of A. dahurica var. formosanaconcentrated in the general functional prediction only, posttranslational modification, proteinturnover, chaperones signal transduction mechanisms. GO functional classification indicated thatthe genes of A. dahurica var. formosana concentrated on cell biological processes and components.KEGG analysis found that the A. dahurica var. formosana genes mostly involved in metabolicpathways. (3) 45 genes of BGLU family were identified in A. dahurica var. formosana. In thisstudy, the whole genome of A. dahurica var. formosana is resolved by the third-generationsequencing technology for the first time, which lay a foundation for the systematic biologicalstudy of A. dahurica var. formosana , and is conducive to the further development and utilization.At the same time, the BGLU family genes were preliminarily analyzed, it also provides animportant theoretical basis for the further study of the function of BGLU in the growth anddevelopment of A. dahurica var. formosana .
章景、王雅兰、周罗静、高继海、张灵迂、卞金辉
生物科学研究方法、生物科学研究技术植物学遗传学
杭白芷,基因组,第三代测序技术,BGLU 基因家族,药用植物
章景,王雅兰,周罗静,高继海,张灵迂,卞金辉.白芷全基因组测序分析及 BGLU 基因家族分析[EB/OL].(2023-08-04)[2025-08-06].https://chinaxiv.org/abs/202308.00078.点此复制
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