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Position: Home > Articles > Sequencing and analysis of the complete mitochondrial genome of the Oriental fruit fly,Bactrocera dorsalis (Hendel) (Diptera:Tephritidae) Acta Entomologica Sinica 2007,50 (8) 4-10

桔小实蝇线粒体基因组全序列及其分析

作  者：
徐浪;余道坚;张润杰;李建光;康林;陈志粦;焦懿
单  位：
深圳出入境检验检疫局动植中心;中山大学昆虫学研究所;北京出入境检验检疫局
关键词：
双翅目;实蝇科;桔小实蝇;线粒体基因组
摘  要：
桔小实蝇Bactrocera dorsalis线粒体基因组全序列对研究实蝇分子系统进化具有重要意义。本研究通过DNA测序和克隆技术,对桔小实蝇mtDNA全序列进行了测定和分析。结果表明:桔小实蝇线粒体基因组全长15915bp(GenBank序列号:DQ845759)。基因组碱基组成为39.3%A,16.2%C,10.2%G,34.3%T,由13个蛋白编码基因、22个tRNA基因、2个rRNA基因以及一个非编码的控制区域(A+T-rich区)组成。7个蛋白编码基因和13个tRNA基因从J链编码,其余6个蛋白编码基因和9个tRNA基因从N链编码。位于J链上的蛋白编码基因具有近似的A、T含量,而位于N链上的蛋白编码基因的A的含量明显高于T的含量。以mtDNACOⅠ基因为例,比较了桔小实蝇与其他14种实蝇的亲缘关系,结果显示其与同亚属(果实蝇亚属Bactrocera)内的其他近缘种相互间的同源性很高。
译  名：
Sequencing and analysis of the complete mitochondrial genome of the Oriental fruit fly,Bactrocera dorsalis (Hendel) (Diptera:Tephritidae)
作  者：
XU Lang~1, YU Dao-Jian~ 1, , ZHANG Run-Jie~2, LI Jian-Guang~3, KANG Lin~1, CHEN Zhi-Lin~1, JIAO Yi~1(1. Shenzhen Entry-Exit Inspection & Quarantine Bureau, Shenzhen, Guangdong 518001, China; 2. State Key Laboratory for Biocontrol & Institute of Entomology, Sun Yat-Sen University, Guangzhou 510275, China; 3. Beijing Entry-Exit Inspection & Quarantine Bureau, Beijing 100026, China)
关键词：
Diptera; Tephritidae; Bactrocera dorsalis; mitochondrial genome
摘  要：
The complete mitochondrial genome of the Oriental fruit fly, Bactrocera dorsalis is important for general molecular and evolutionary studies in Tephritidae. Via sequencing and cloning the target DNA sequences, a complete mitochondrial genome sequence of B. dorsalis from the Chinese population was determined and analyzed. The results indicated that the complete mitochondrial genome of B. dorsalis is a circular molecule of 15 915 nucleotides (GenBank accession no.: DQ845759). Its overall composition is 39.3%A, 16.2%C, 10.2%G, and 34.3%T, and the gene content includes 22 tRNAs, 2 rRNAs and a long non-coding region (A+T-rich region). Seven protein genes and 13 tRNA genes are transcribed from J strand, and the other 6 protein genes and 9 tRNA genes are transcribed genes from N strand. Protein coding genes on J strand show a fairly similar A% and T%, whereas those encoded on N strand have a higher proportion of A than T. The similarity analysis of mtDNA COⅠ genes between B. dorsalis and the other 14 fruit flies showed that there was a high similarity among B. dorsalis and the other species belonging to the same subgenus Bactrocera.

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