title: [Identification of sarcosaphagous Calliphorid flies by analyzing the sequence of 16S rDNA].
abstract: OBJECTIVE
  To explore the application of a 289bp fragment of the 16S rDNA gene to identify various species of sarcosaphagous Calliphorid flies.
  
  
  METHODS
  Twenty-six Calliphorid flies were collected from 14 Chinese provinces. All specimens were properly assigned into three genera and six species. The DNA of the pectoralis was extracted using CTAB method. Then PCR amplification was done for the 289 bp fragment of the 16S rDNA gene. The PCR products were then purified and sequenced, and the obtained sequences were uploaded to GenBank. The phylogenetic tree was built by the neighbor-joining method and intraspecific and interspecific divergences were calculated by sequence analysis.
  
  
  RESULTS
  The above 26 sarcosaphagous flies could be well clustered according to different genera and species. The evolutional intraspecific values were all zero, the evolutional interspecific variations varied from 0.3% to 6.5%.
  
  
  CONCLUSIONS
  The 289 bp fragment of the 16S rDNA of sarcosaphagous flies can be effectively used to identify most of the flies at species level. This method appears to be fast and low dissipative, which might be used to estimate postmortem interval by sarcosaphagous flies.
authors.affiliation: Department of Forensic Medicine, School of Basic Medical Science, Central South University, Changsha 410013, China. shijian88116@163.com
authors.forename: Jian
authors.initials: J
authors.lastname: Shi
authors.forename: Ya-Dong
authors.initials: YD
authors.lastname: Guo
authors.forename: Xu-Yuan
authors.initials: XY
authors.lastname: Kuang
authors.forename: Ling-Mei
authors.initials: LM
authors.lastname: Lan
authors.forename: Ji-Feng
authors.initials: JF
authors.lastname: Cai
authors.forename: Hong-Jie
authors.initials: HJ
authors.lastname: Wang
mesh_terms: D000818:Animals; D017931:DNA Primers; D004272:DNA, Mitochondrial / Q000235:genetics*; D004275:DNA, Ribosomal / Q000235:genetics*; D004175:Diptera / Q000145:classification / Q000235:genetics*; D004772:Entomology; D005554:Forensic Medicine / Q000379:methods; D010802:Phylogeny; D016133:Polymerase Chain Reaction / Q000379:methods; D012336:RNA, Ribosomal, 16S / Q000235:genetics*; D011817:Rabbits; D017422:Sequence Analysis, DNA; D013045:Species Specificity
chemical_list: D017931:DNA Primers; D004272:DNA, Mitochondrial; D004275:DNA, Ribosomal; D012336:RNA, Ribosomal, 16S