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题名The invasive MED/Q Bemisia tabaci genome: A tale of gene loss and gene gain
作者
发表日期2018-01-22
发表期刊BMC Genomics
卷号19期号:1
摘要Background: Sweetpotato whitefly, Bemisia tabaci MED/Q and MEAM1/B, are two economically important invasive species that cause considerable damages to agriculture crops through direct feeding and indirect vectoring of plant pathogens. Recently, a draft genome of B. tabaci MED/Q has been assembled. In this study, we focus on the genomic comparison between MED/Q and MEAM1/B, with a special interest in MED/Q's genomic signatures that may contribute to the highly invasive nature of this emerging insect pest. Results: The genomes of both species share similarity in syntenic blocks, but have significant divergence in the gene coding sequence. Expansion of cytochrome P450 monooxygenases and UDP glycosyltransferases in MED/Q and MEAM1/B genome is functionally validated for mediating insecticide resistance in MED/Q using in vivo RNAi. The amino acid biosynthesis pathways in MED/Q genome are partitioned among the host and endosymbiont genomes in a manner distinct from other hemipterans. Evidence of horizontal gene transfer to the host genome may explain their obligate relationship. Putative loss-of-function in the immune deficiency-signaling pathway due to the gene loss is a shared ancestral trait among hemipteran insects. Conclusions: The expansion of detoxification genes families, such as P450s, may contribute to the development of insecticide resistance traits and a broad host range in MED/Q and MEAM1/B, and facilitate species' invasions into intensively managed cropping systems. Numerical and compositional changes in multiple gene families (gene loss and gene gain) in the MED/Q genome sets a foundation for future hypothesis testing that will advance our understanding of adaptation, viral transmission, symbiosis, and plant-insect-pathogen tritrophic interactions.
关键词Bemisia tabaci Detoxification enzymes Gene gain and loss Genome Invasive species MED/Q Symbiosis
DOI10.1186/s12864-018-4448-9
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语种英语English
Scopus入藏号2-s2.0-85040862135
引用统计
被引频次:41[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://repository.uic.edu.cn/handle/39GCC9TT/13141
专题个人在本单位外知识产出
通讯作者Zhou,Xuguo
作者单位
1.Department of Entomology,Institute of Vegetables and Flowers,Chinese Academy of Agricultural Science,Haidian District, Beijing,No. 12 Zhongguancun Nandajie,100081,China
2.BGI-Shenzhen,Shenzhen,518083,China
3.United States Department of Agriculture,Agricultural Research Service,Corn Insects and Crop Genetics Research Unit,Ames,50011,United States
4.Department of Entomology,University of Kentucky,Lexington,S-225 Agricultural Science Center North,40546-0091,United States
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GB/T 7714
Xie,Wen,Yang,Xin,Chen,Chunhaiet al. The invasive MED/Q Bemisia tabaci genome: A tale of gene loss and gene gain[J]. BMC Genomics, 2018, 19(1).
APA Xie,Wen., Yang,Xin., Chen,Chunhai., Yang,Zezhong., Guo,Litao., .. & Zhang,Youjun. (2018). The invasive MED/Q Bemisia tabaci genome: A tale of gene loss and gene gain. BMC Genomics, 19(1).
MLA Xie,Wen,et al."The invasive MED/Q Bemisia tabaci genome: A tale of gene loss and gene gain". BMC Genomics 19.1(2018).
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