{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,28]],"date-time":"2026-08-28T13:32:48Z","timestamp":1787923968760,"version":"build-2784847793"},"reference-count":48,"publisher":"American Society for Microbiology","issue":"1","license":[{"start":{"date-parts":[[2025,1,28]],"date-time":"2025-01-28T00:00:00Z","timestamp":1738022400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,28]],"date-time":"2025-01-28T00:00:00Z","timestamp":1738022400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"funder":[{"name":"MOST | National Key Research and Development Program of China","award":["2022YFC3302004"],"award-info":[{"award-number":["2022YFC3302004"]}]},{"name":"\u65b0\u7586\u7ef4\u543e\u5c14\u81ea\u6cbb\u533a\u79d1\u5b66\u6280\u672f\u5385 | Natural Science Foundation of Xinjiang Uygur Autonomous Region","award":["2022D01C443"],"award-info":[{"award-number":["2022D01C443"]}]},{"name":"Visiting Research Fund for Teachers of Ordinary Undergraduate Universities in Shandong Province","award":["\/"],"award-info":[{"award-number":["\/"]}]}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["mSphere"],"published-print":{"date-parts":[[2025,1,28]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:sec>\n            <jats:title\/>\n            <jats:p>\n              The human microbiome, the community of microorganisms that reside on and inside the human body, is critically important for health and disease. However, it is influenced by various factors and may vary among individuals residing in distinct geographic regions. In this study, 220 samples, consisting of sterile swabs from palmar skin and oral and nasal cavities were collected from Chinese Han individuals living in Shanghai, Chifeng, Kunming, and Urumqi, representing the geographic regions of east, northeast, southwest, and northwest China. The full-length 16S rRNA gene of the microbiota in each sample was sequenced using the PacBio single-molecule real-time sequencing platform, followed by clustering the sequences into operational taxonomic units (OTUs). The analysis revealed significant differences in microbial communities among the four regions.\n              <jats:italic>Cutibacterium<\/jats:italic>\n              was the most abundant bacterium in palmar samples from Shanghai and Kunming,\n              <jats:italic>Psychrobacter<\/jats:italic>\n              in Chifeng samples, and\n              <jats:italic>Psychrobacillus<\/jats:italic>\n              in Urumqi samples. Additionally,\n              <jats:italic>Streptococcus<\/jats:italic>\n              and\n              <jats:italic>Staphylococcus<\/jats:italic>\n              were the dominant bacteria in the oral and nasal cavities. Individuals from the four regions could be distinguished and predicted based on a model constructed using the random forest algorithm, with the predictive effect of palmar microbiota being better than that of oral and nasal cavities. The prediction accuracy using hypervariable regions (V3-V4 and V4-V5) was comparable with that of using the entire 16S rRNA. Overall, our study highlights the distinctiveness of the human microbiome in individuals living in these four regions. Furthermore, the microbiome can serve as a biomarker for geographic origin inference, which has immense application value in forensic science.\n            <\/jats:p>\n            <jats:sec>\n              <jats:title>IMPORTANCE<\/jats:title>\n              <jats:p>Microbial communities in human hosts play a significant role in health and disease, varying in species, quantity, and composition due to factors such as gender, ethnicity, health status, lifestyle, and living environment. The characteristics of microbial composition at various body sites of individuals from different regions remain largely unexplored. This study utilized single-molecule real-time sequencing technology to detect the entire 16S rRNA gene of bacteria residing in the palmar skin, oral, and nasal cavities of Han individuals from four regions in China. The composition and structure of the bacteria at these three body sites were well characterized and found to differ regionally. The results elucidate the differences in bacterial communities colonizing these body sites across different regions and reveal the influence of geographical factors on human bacteria. These findings not only contribute to a deeper understanding of the diversity and geographical distribution of human bacteria but also enrich the microbiome data of the Asian population for further studies.<\/jats:p>\n            <\/jats:sec>\n          <\/jats:sec>","DOI":"10.1128\/msphere.00672-24","type":"journal-article","created":{"date-parts":[[2024,12,19]],"date-time":"2024-12-19T14:00:50Z","timestamp":1734616850000},"update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":16,"title":["Comparative analysis of the human microbiome from four different regions of China and machine learning-based geographical inference"],"prefix":"10.1128","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0009-0008-0944-9572","authenticated-orcid":false,"given":"Yinlei","family":"Lei","sequence":"first","affiliation":[{"name":"Shanghai Key Laboratory of Forensic Medicine, Shanghai Forensic Service Platform, Academy of Forensic 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