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Specific microbes of saliva and vaginal fluid of Guangdong Han females based on 16S rDNA high-throughput sequencing

  • Hongyan Huang
  • Ting Yao
  • Weibin Wu
  • Chuangyan Zhai
  • Tianshan Guan
  • Yali Song
  • Yunxia Sun
  • Cheng Xiao
  • Peiyan Liang
  • Ling ChenEmail author
Original Article

Abstract

Vaginal fluid and saliva are of great importance in forensic sciences. The identification of vaginal fluid or saliva is especially important in criminal cases. Microbes are considered as a promising marker for the identification of body fluids. In this study, 18 salivary fluids and 18 vaginal fluid samples were collected from 18 healthy women of the Han population in Guangdong province, China. The microbes of the above samples were analyzed by 16S rDNA high-throughput sequencing. The results showed that the microbes whose proportions are over 1% in saliva samples distributed across 12 genera and 57 operational taxonomic units (OTUs), and in vaginal fluid distributed across 4 genera and 9 OTUs. The microbes that dominated in saliva were quite different from those dominated in vaginal fluids. The linear discriminant analysis (LDA) effect size (LEfSe) algorithm was used to screen out the specific microbes of the studied samples, and the results showed that the specific microbes in saliva samples are Haemophilus parainfluenzae, Veillonella parvula, and Aggregatibacter segnis, while in vaginal fluid is Lactobacillus iners.

Keywords

16S rDNA Body fluid identification Saliva Vaginal fluid Microbes 

Notes

Funding information

This work was supported by the Natural Science Foundation of China (Grant no. 81501627) and Innovative training program for College Students (Grant no. 201612121083 and Grant no. 201812121123).

Compliance with ethical standards

The study was approved by the Ethics Committee of Southern Medical University.

Competing interests

The authors declare that they have no competing interests.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Forensic MedicineSouthern Medical UniversityGuangzhouPeople’s Republic of China
  2. 2.Department of health managementNanfang HospitalGuangzhouPeople’s Republic of China
  3. 3.Center for Reproductive Medicine, Department of Obstetrics and GynecologyNanfang HospitalGuangzhouChina

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