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Authors: Zhu, Junjie and Jiang, Feng and Wang, Xianhui and Yang, Pengcheng and Bao, Yanyuan and Zhao, Wan and Wang, Wei and Lu, Hong and Wang, Qianshuo and Cui, Na and Li, Jing and Chen, Xiaofang and Luo, Lan and Yu, Jinting and Kang, Le and Cui, Feng

Laodelphax striatellus Fallén (Hemiptera: Delphacidae) is one of the most destructive rice pests. L. striatellus is different from two other rice planthoppers with a released genome sequence, Sogatella furcifera and Nilaparvata lugens, in many biological characteristics, such as host range, dispersal capacity, and vectoring plant viruses. Deciphering the genome of L. striatellus will help to understand the genetic basis of the biological differences among the three rice planthoppers.193 Gb Illumina data and 32.4 Gb Pacbio data were generated and used to assemble a high quality L. striatellus genome sequence, which is 541 Mb in length and has a contig N50 of 118 Kb and a scaffold N50 of 1.08 Mb. Annotated repetitive elements account for 25.7% of the genome. 17736 protein-coding genes were annotated, capturing 97.6% and 98% of BUSCO eukaryote and arthropoda genes, respectively. Compared to N. lugens and S. furcifera, L. striatellus has the smallest genome and the lowest gene number. Gene family expansion and transcriptomic analyses provided hints to the genomic basis of the differences in important traits such as host range, migratory habit and plant virus transmission between L. striatellus and the other two planthoppers.We report a high quality genome assembly of L. striatellus, which is an important genomic resource not only for the study of the biology of L. striatellus and its interactions with plant hosts and plant viruses, but also for the comparisons to other planthoppers.

Journal: GigaScience
DOI: 10.1093/gigascience/gix109
Year: 2017

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