Complete genome sequencing of nematode Aphelenchoides besseyi, an economically important pest causing rice white-tip disease
文献类型： 外文期刊
作者： Ji, Hongli 1 ; Xie, Jialian 1 ; Han, Ziduan 2 ; Yang, Fang 1 ; Yu, Wenjuan 1 ; Peng, Yunliang 1 ; Qing, Xue 3 ;
作者机构： 1.Sichuan Acad Agr Sci, Inst Plant Protect, MOA Key Lab Integrated Management Pests Crops Sout, Chengdu 610066, Peoples R China
2.Northwest A&F Univ, Dept Plant Pathol, Yangling 712100, Peoples R China
3.Nanjing Agr Univ, Dept Plant Pathol, Nanjing 210095, Peoples R China
关键词： Aphelenchoidea; Nematoda; PacBio; Horizontal gene transfer; Aphelenchoides oryzae; Oryza sativa
期刊名称：PHYTOPATHOLOGY RESEARCH （ 影响因子：3.4； 五年影响因子：4.2 ）
ISSN： 2096-5362
年卷期： 2023 年 5 卷 1 期
页码：
收录情况： SCI
摘要： Aphelenchoides besseyi is a seed-borne plant-parasitic nematode that causes severe rice yield losses worldwide. In the present study, the A. besseyi Anhui-1 strain isolated from rice in China was sequenced with a hybrid method combining PacBio long reads and Illumina short reads, and subsequently annotated using available transcriptome references. The genome assembly consists of 166 scaffolds totaling 50.3 Mb, with an N50 of 1.262 Mb and a maximum scaffold length of 9.17 Mb. A total of 16,343 genes were annotated in the genome, with 94 gene families expanded while 70 families contracted specifically in A. besseyi. Furthermore, gene function analysis demonstrated that the genes related to drought tolerance were enriched, and cellulase genes were horizontally acquired from eukaryotic origin. Our findings provide resources to interpret the biology, evolution, ecology, and functional diversities of Aphelenchoides spp. in the light of genomics.
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