三种麦蚜中RNA病毒的多样性与进化分析
Diversity and evolution analysis of RNA viruses in three wheat aphid species.
作者信息
Feng Ke-Hui, Qi Yu-Hua, Ye Zhuang-Xin, Li Ting, Jiao Gao-Yang, Zhang Chuan-Xi, Chen Jian-Ping, Lu Gang, Li Jun-Min
机构信息
State Key Laboratory for Quality and Safety of Agro-Products, Key Laboratory of Biotechnology in Plant Protection of MARA, Zhejiang Key Laboratory of Green Plant Protection, Institute of Plant Virology, Ningbo University, Ningbo, China.
College of Forestry, Nanjing Forestry University, Nanjing, China.
出版信息
BMC Genomics. 2025 Apr 7;26(1):353. doi: 10.1186/s12864-025-11512-1.
BACKGROUND
Although advances in metagenomics, viral diversity and non-retroviral endogenous viral elements (EVEs) in wheat aphids remain underexplored. By analyzing 470 publicly available datasets and one laboratory-generated transcriptome, the RNA virome and EVEs in the genomes of Sitobion avenae, Schizaphis graminum, and Rhopalosiphum padi were systematically investigated.
RESULTS
We identified 43 RNA viruses, including 12 novel and 31 known RNA viruses. These viruses were widely distributed and abundant in different geographic populations of three wheat aphid species. +ssRNA viruses were the dominant type of aphid viruses. Besides, 90 EVEs were discovered in the genomes of three aphid species. In addition, the EVEs exhibit potential domestication and novel functional roles within aphid genomes.
CONCLUSIONS
This study expands the understanding of RNA virus diversity in aphids and provides valuable insights into the potential functions of EVEs in virus-host coevolution.
背景
尽管宏基因组学、病毒多样性以及小麦蚜虫中的非逆转录病毒内源性病毒元件（EVE）方面的进展仍未得到充分探索。通过分析470个公开可用数据集和一个实验室生成的转录组，对麦长管蚜、禾谷缢管蚜和麦二叉蚜基因组中的RNA病毒组和EVE进行了系统研究。
结果
我们鉴定出43种RNA病毒，包括12种新的和31种已知的RNA病毒。这些病毒在三种小麦蚜虫的不同地理种群中广泛分布且数量丰富。+ssRNA病毒是蚜虫病毒的主要类型。此外，在三种蚜虫的基因组中发现了90个EVE。此外，EVE在蚜虫基因组中表现出潜在的驯化和新的功能作用。
结论
本研究扩展了对蚜虫中RNA病毒多样性的理解，并为EVE在病毒-宿主共同进化中的潜在功能提供了有价值的见解。
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