Presence of Poly(A) Tails at the 3'-Termini of Some mRNAs of a Double-Stranded RNA Virus, Southern Rice Black-Streaked Dwarf Virus

Viruses

Ming He²  Ziqiong Jiang³  Shuo Li¹  Peng He² 

[1] Institute of Plant Protection, Jiangsu Academy of Agricultural Sciences, Jiangsu Technical Service Center of Diagnosis and Detection for Plant Virus Diseases, Nanjing 210014, China;State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China; E-Mail:;Plant Protection Station, Rural work office, Rongjiang County, Guizhou 557200, China; E-Mail:

关键词: Southern rice black-streaked dwarf virus;    double-stranded RNA virus;    poly(A) tails at mRNAs;   

DOI  :  10.3390/v7041642

来源: mdpi

【 摘 要 】

Southern rice black-streaked dwarf virus (SRBSDV), a new member of the genus Fijivirus, is a double-stranded RNA virus known to lack poly(A) tails. We now showed that some of SRBSDV mRNAs were indeed polyadenylated at the 3' terminus in plant hosts, and investigated the nature of 3' poly(A) tails. The non-abundant presence of SRBSDV mRNAs bearing polyadenylate tails suggested that these viral RNA were subjected to polyadenylation-stimulated degradation. The discovery of poly(A) tails in different families of viruses implies potentially a wide occurrence of the polyadenylation-assisted RNA degradation in viruses.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.