Barcoding for diatoms in the Yangtze River from the morphological observation and 18S rDNA polymorphic analysis
In forensic science, the determination of diatoms bears several goals, for example to estimate the post mortem interval (PMI), to determine the cause of death of a corpse found in water as well as to further locate the suspected drowning site. However, to identify diatoms using morphological method...
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| Veröffentlicht in: | Forensic science international 2019-04, Vol.297, p.81-89 |
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| creator | Li, Zheng Liu, Xiaorong Yu, Yanfang Huang, Huijie Li, Xingling Ji, Qiang Li, Kai Yu, Youjia Li, Ding Mao, Zhengsheng Pu, Yan Chen, Peng Chen, Feng |
| description | In forensic science, the determination of diatoms bears several goals, for example to estimate the post mortem interval (PMI), to determine the cause of death of a corpse found in water as well as to further locate the suspected drowning site. However, to identify diatoms using morphological method beyond the genus level is difficult and requires expert knowledge. During the last decade, a new concept of DNA barcode is becoming a promising approach to identify the taxa of diatoms. In the present study, we performed a diatom morphological analysis covering 10 different water areas in Nanjing section of the Yangtze River. The diatoms were classified to the ‘genus’ level by using optical microscope and electron microscope. According to the morphological study results, we further designed and analyzed the 18S rDNA sequences as barcodes at the ‘species’ level. Our study established the morphological and DNA barcoding profile for the diatoms in Nanjing section of the Yangtze River for the first time which will be of great significance for the using of diatoms in forensic application. The results indicated that detailed analysis of selected diatom DNA barcodes can be used as a useful tool for forensic applications. |
| doi_str_mv | 10.1016/j.forsciint.2019.01.028 |
| format | Article |
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However, to identify diatoms using morphological method beyond the genus level is difficult and requires expert knowledge. During the last decade, a new concept of DNA barcode is becoming a promising approach to identify the taxa of diatoms. In the present study, we performed a diatom morphological analysis covering 10 different water areas in Nanjing section of the Yangtze River. The diatoms were classified to the ‘genus’ level by using optical microscope and electron microscope. According to the morphological study results, we further designed and analyzed the 18S rDNA sequences as barcodes at the ‘species’ level. Our study established the morphological and DNA barcoding profile for the diatoms in Nanjing section of the Yangtze River for the first time which will be of great significance for the using of diatoms in forensic application. The results indicated that detailed analysis of selected diatom DNA barcodes can be used as a useful tool for forensic applications.</description><identifier>ISSN: 0379-0738</identifier><identifier>EISSN: 1872-6283</identifier><identifier>DOI: 10.1016/j.forsciint.2019.01.028</identifier><identifier>PMID: 30784950</identifier><language>eng</language><publisher>Ireland: Elsevier B.V</publisher><subject>Bacillariophyceae ; Bar codes ; Classification ; Deoxyribonucleic acid ; Diatom ; DNA ; DNA barcode ; Drowning ; Forensic ; Forensic science ; Forensic sciences ; Gene sequencing ; Maximum likelihood method ; Microscopy ; Morphology ; Nanjing ; Phylogenetics ; Plankton ; Rivers ; Sediments ; Software ; Water area ; Yangtze River</subject><ispartof>Forensic science international, 2019-04, Vol.297, p.81-89</ispartof><rights>2019 Elsevier B.V.</rights><rights>Copyright © 2019 Elsevier B.V. All rights reserved.</rights><rights>2019. Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c399t-94f40a2d61bb3d60f7b9e63570f2d201bcbfa49cd0a2eaa055a66209c991c4f3</citedby><cites>FETCH-LOGICAL-c399t-94f40a2d61bb3d60f7b9e63570f2d201bcbfa49cd0a2eaa055a66209c991c4f3</cites><orcidid>0000-0001-9677-4550 ; 0000-0003-3508-8834</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2199194183?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995,64385,64387,64389,72469</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/30784950$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Li, Zheng</creatorcontrib><creatorcontrib>Liu, Xiaorong</creatorcontrib><creatorcontrib>Yu, Yanfang</creatorcontrib><creatorcontrib>Huang, Huijie</creatorcontrib><creatorcontrib>Li, Xingling</creatorcontrib><creatorcontrib>Ji, Qiang</creatorcontrib><creatorcontrib>Li, Kai</creatorcontrib><creatorcontrib>Yu, Youjia</creatorcontrib><creatorcontrib>Li, Ding</creatorcontrib><creatorcontrib>Mao, Zhengsheng</creatorcontrib><creatorcontrib>Pu, Yan</creatorcontrib><creatorcontrib>Chen, Peng</creatorcontrib><creatorcontrib>Chen, Feng</creatorcontrib><title>Barcoding for diatoms in the Yangtze River from the morphological observation and 18S rDNA polymorphic analysis</title><title>Forensic science international</title><addtitle>Forensic Sci Int</addtitle><description>In forensic science, the determination of diatoms bears several goals, for example to estimate the post mortem interval (PMI), to determine the cause of death of a corpse found in water as well as to further locate the suspected drowning site. However, to identify diatoms using morphological method beyond the genus level is difficult and requires expert knowledge. During the last decade, a new concept of DNA barcode is becoming a promising approach to identify the taxa of diatoms. In the present study, we performed a diatom morphological analysis covering 10 different water areas in Nanjing section of the Yangtze River. The diatoms were classified to the ‘genus’ level by using optical microscope and electron microscope. According to the morphological study results, we further designed and analyzed the 18S rDNA sequences as barcodes at the ‘species’ level. Our study established the morphological and DNA barcoding profile for the diatoms in Nanjing section of the Yangtze River for the first time which will be of great significance for the using of diatoms in forensic application. The results indicated that detailed analysis of selected diatom DNA barcodes can be used as a useful tool for forensic applications.</description><subject>Bacillariophyceae</subject><subject>Bar codes</subject><subject>Classification</subject><subject>Deoxyribonucleic acid</subject><subject>Diatom</subject><subject>DNA</subject><subject>DNA barcode</subject><subject>Drowning</subject><subject>Forensic</subject><subject>Forensic science</subject><subject>Forensic sciences</subject><subject>Gene sequencing</subject><subject>Maximum likelihood method</subject><subject>Microscopy</subject><subject>Morphology</subject><subject>Nanjing</subject><subject>Phylogenetics</subject><subject>Plankton</subject><subject>Rivers</subject><subject>Sediments</subject><subject>Software</subject><subject>Water area</subject><subject>Yangtze 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international</jtitle><addtitle>Forensic Sci Int</addtitle><date>2019-04-01</date><risdate>2019</risdate><volume>297</volume><spage>81</spage><epage>89</epage><pages>81-89</pages><issn>0379-0738</issn><eissn>1872-6283</eissn><abstract>In forensic science, the determination of diatoms bears several goals, for example to estimate the post mortem interval (PMI), to determine the cause of death of a corpse found in water as well as to further locate the suspected drowning site. However, to identify diatoms using morphological method beyond the genus level is difficult and requires expert knowledge. During the last decade, a new concept of DNA barcode is becoming a promising approach to identify the taxa of diatoms. In the present study, we performed a diatom morphological analysis covering 10 different water areas in Nanjing section of the Yangtze River. The diatoms were classified to the ‘genus’ level by using optical microscope and electron microscope. According to the morphological study results, we further designed and analyzed the 18S rDNA sequences as barcodes at the ‘species’ level. Our study established the morphological and DNA barcoding profile for the diatoms in Nanjing section of the Yangtze River for the first time which will be of great significance for the using of diatoms in forensic application. The results indicated that detailed analysis of selected diatom DNA barcodes can be used as a useful tool for forensic applications.</abstract><cop>Ireland</cop><pub>Elsevier B.V</pub><pmid>30784950</pmid><doi>10.1016/j.forsciint.2019.01.028</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0001-9677-4550</orcidid><orcidid>https://orcid.org/0000-0003-3508-8834</orcidid></addata></record> |
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| ispartof | Forensic science international, 2019-04, Vol.297, p.81-89 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals Complete; ProQuest Central UK/Ireland |
| subjects | Bacillariophyceae Bar codes Classification Deoxyribonucleic acid Diatom DNA DNA barcode Drowning Forensic Forensic science Forensic sciences Gene sequencing Maximum likelihood method Microscopy Morphology Nanjing Phylogenetics Plankton Rivers Sediments Software Water area Yangtze River |
| title | Barcoding for diatoms in the Yangtze River from the morphological observation and 18S rDNA polymorphic analysis |
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