The composition of these vaginal microbiome has a significant impact on women’s health.However,few studies have characterized the vaginal microbiome of healthy Chinese women using metagenomic sequencing.Here,we carri...The composition of these vaginal microbiome has a significant impact on women’s health.However,few studies have characterized the vaginal microbiome of healthy Chinese women using metagenomic sequencing.Here,we carried out a comparative metagenomic analysis to survey taxonomic,functional levels,and microbial communities’genome content in healthy women’s vaginal microbiome.Overall,we observed a total of 111 species,including all dominant vaginal Lactobacillus species,such as L.iners,L.crispatus,L.gasseri,and L.jensenii.Unlike microbial taxa,several pathways were ubiquitous and prevalent across individuals,including adenosine ribonucleotides de novo biosynthesis and pyruvate fermentation to acetate and lactate Ⅱ.Notably,our diversity analysis confirmed a significant difference in healthy women from different ethnic groups.Moreover,we binned vaginal assemblies into 62 high-quality genomes,including 9 L.iners,7 A.vaginae,5 L.jensenii,and 5 L.crispatus.We identified the pan and core genomes of L.iners and A.vaginae and revealed the genetic diversity.Primary differences between strains were the hypothetical genes and mobile element-like genes.Our results provide a framework for understanding the implications of the female reproductive tract’s composition and functional potential and highlight the importance of genome-resolved metagenomic analysis to further understand the human vaginal microbiome.展开更多
基金supported in part by the National Key Research and Development Program of China(2017YFD0400602 and 2016YFC1000102-2)the National Natural Science Foundation of China(31500114)the Beijing Municipal Natural Science Foundation(7192169).
文摘The composition of these vaginal microbiome has a significant impact on women’s health.However,few studies have characterized the vaginal microbiome of healthy Chinese women using metagenomic sequencing.Here,we carried out a comparative metagenomic analysis to survey taxonomic,functional levels,and microbial communities’genome content in healthy women’s vaginal microbiome.Overall,we observed a total of 111 species,including all dominant vaginal Lactobacillus species,such as L.iners,L.crispatus,L.gasseri,and L.jensenii.Unlike microbial taxa,several pathways were ubiquitous and prevalent across individuals,including adenosine ribonucleotides de novo biosynthesis and pyruvate fermentation to acetate and lactate Ⅱ.Notably,our diversity analysis confirmed a significant difference in healthy women from different ethnic groups.Moreover,we binned vaginal assemblies into 62 high-quality genomes,including 9 L.iners,7 A.vaginae,5 L.jensenii,and 5 L.crispatus.We identified the pan and core genomes of L.iners and A.vaginae and revealed the genetic diversity.Primary differences between strains were the hypothetical genes and mobile element-like genes.Our results provide a framework for understanding the implications of the female reproductive tract’s composition and functional potential and highlight the importance of genome-resolved metagenomic analysis to further understand the human vaginal microbiome.
