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[Relationship between CO II gene of mtDNA of Lucilia sericata and latitude interval].

OBJECTIVE
To deduce the region that the geographical species of Lucilia sericata come from and determine the scene of crime (SOC) based on the gene analysis of mtDNA CO II.


METHODS
A 635 bp region for CO II of 4 Lucilia sericata (belong to 2 geographical species) were collected and sequenced, compared with the data of GenBank. A neighbour-joining tree with the Tamura and Nei model was constructed by MEGA2.1 package. The number of inherit intervals of inner-species were analyzes by Kimura's two-parameter model and used for construction the relationships between hereditary and latitude interval by SPSS10.5 soft.


RESULTS
It showed that they had the relationships between inherit and latitude interval for the 8 geographical species of Lucilia sericata for CO II.


CONCLUSION
This method can be the evidence deducing the region that the geographical species of Lucilia sericata come from and further to determine the scene of crime (SOC).