摘要
目的:利用Illumina Miseq测序平台探究病理黄腻苔、生理黄腻苔及健康薄白苔之间舌苔菌群门与属水平上菌群聚集情况。方法:采集病理黄腻苔、生理黄腻苔和健康薄白苔样本各50例,归为3组。对3组舌苔样本提取总DNA,并筛选出12份病理黄腻苔样本、12份生理黄腻苔样本及11份健康薄白苔样本,共35份,以Illumina Miseq PE300为测序平台进行高通量测序,并对测序数据进行处理和分析。结果:对35份样本测序后与数据库进行比对确定为12门、23纲、39目、66科、133属、246种的细菌。3组样本的群落构成有一定相似性,在门、属水平上都有相同的优势菌种,但3组样本在门、属水平上种群组成存在差异。结论:在门水平上,病理黄腻苔组与生理黄腻苔组在变形菌上存在差异;病理黄腻苔组与健康薄白苔组在变形菌和放线菌上存在差异;在属水平上,病理黄腻苔组与生理黄腻苔组在奈瑟氏菌和韦荣球菌上存在差异;病理黄腻苔组与健康薄白苔组在奈瑟氏菌、韦荣球菌、放线菌和嗜血杆菌上存在差异;生理黄腻苔组与健康薄白苔组在门与属水平上菌群结构无差异。
Objective: To analyze the situation between pathological yellow-greasy coating,physiological yellow-greasy coating and healthy thin-white coating by the level of phylum and genus using Illumina Miseq sequencing platform. Methods:We collected athological yellow-greasy coating,physiological yellow-greasy coating and healthy thin-white coating samples,each 50 cases. Three groups' tongue samples total DNA was extracted, and we screened 12 pathological yellow-greasy coating samples and 12 samples of physiological yellow-greasy coating and 11 samples of healthy thin-white coating, a total of 35 samples, with Illumina Miseq PE300 for high throughput sequencing, data processing and analysis. Results:After sequencing the data from 35 samples,compared with the bacterial database, the bacteria were identified as 12 phylums, 23 classes, 39 orders, 66 families, 133 genera and 246 species. The community composition of the three groups was similar and showed the same dominant species at the phylum and genus level. However, there were differences in the proportion of dominant populations between the 3 groups. Conclusion: At the phylum level, the pathological yellow-greasy coating group and the physiological yellow-greasy coating group were different in the Proteobacteria; the pathological yellow-greasy coating group and the healthy thin-white coating group were different in the Proteobacteria and Actinobacteria. At the genus level, the pathological yellow-greasy coating group and the physiological yellow-greasy coating group were different in the Neisseria and Veillonella; the pathological yellow-greasy coating group and the healthy thin-white coating group were different in the Neisseria、Veillonella、Actinomyces and Haemophilus. There was no difference in the structure of the flora between the physiological yellow-greasy coating group and the healthy thin-white coating group at the phylum and genus levels.
引文
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