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烟粉虱亚洲I隐种复合群(半翅目:粉虱科)的线粒体全基因组

Complete mitochondrial DNA genome of Bemisia tabaci cryptic pest species complex Asia I (Hemiptera: Aleyrodidae).

作者信息

Tay W T, Elfekih S, Court L, Gordon K H, De Barro P J

机构信息

a CSIRO Biosecurity Flagship, Black Mountain Laboratories , Canberra , Australia and.

b CSIRO Ecosystem Sciences , Brisbane , Australia.

出版信息

Mitochondrial DNA A DNA Mapp Seq Anal. 2016;27(2):972-3. doi: 10.3109/19401736.2014.926511. Epub 2014 Jun 24.

Abstract

The complete length of the Asia I member of the Bemisia tabaci species complex mitochondrial DNA genome (mitogenome) is 15,210 bp (GenBank accession no. KJ778614) with an A-T biased nucleotide composition (A: 32.7%; T: 42.4%; G: 14.0%; C: 10.8%). The mitogenome consists of 13 protein-coding genes (PCGs), 22 transfer RNAs (tRNAs), 2 ribosomal RNA (rRNAs) and a 467 bp putative control region which also includes the A+T rich repeat region. All PCGs have an ATA (n = 8) or ATG (n = 5) start codon. Gene synteny of Asia I is overall similar to B. afer and two other members of the B. tabaci species complex Mediterranean and New World 1, and contains the tRNA-Ser2 located between the Cytb and ND1 genes found in Mediterranean and New World 1, but which is absent in B. afer. The orientation of the tRNA-Arg in Asia I is on the "plus" strand and differed from Mediterranean which is found on the "minus" strand. The Asia I mitogenome size is currently ranked the second smallest after B. afer (14,968 bp) followed by New World 1 (15,322 bp) and Mediterranean (15,632 bp).

摘要

烟粉虱复合种亚洲I线粒体DNA基因组(线粒体基因组)全长15210 bp(GenBank登录号:KJ778614),核苷酸组成具有A-T偏向性(A:32.7%;T:42.4%;G:14.0%;C:10.8%)。该线粒体基因组由13个蛋白质编码基因(PCGs)、22个转运RNA(tRNAs)、2个核糖体RNA(rRNAs)和一个467 bp的假定控制区组成,该控制区还包括富含A+T的重复区域。所有PCGs均以ATA(n = 8)或ATG(n = 5)作为起始密码子。亚洲I的基因连锁情况总体上与非洲烟粉虱以及烟粉虱复合种的另外两个成员地中海烟粉虱和新世界1相似,并且包含位于地中海烟粉虱和新世界1的Cytb和ND1基因之间的tRNA-Ser2,但非洲烟粉虱中不存在该基因。亚洲I中tRNA-Arg的方向位于“正”链上,与位于“负”链上的地中海烟粉虱不同。目前,亚洲I线粒体基因组大小在烟粉虱复合种中排第二小,仅次于非洲烟粉虱(14968 bp),其次是新世界1(15322 bp)和地中海烟粉虱(15632 bp)。

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