library_construction_protocol: Viral particles of GFLV K30 and B844 isolates were purified from C. quinoa by sucrose gradient. RNA was extracted from purified virions using phenol-chloroform. 3'RACE-seq 3'RACEseq protocol is based on the ligation of a primer at the 3' end of RNA, and the subsequent targeted amplification by PCR of amplicons suitable for Illumina sequencing.