ArticleVirus genes2012
The large intergenic region of Rice tungro bacilliform virus evolved differentially among geographically distinguished isolates.
Article in Virus genes, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed, 9 citations in OpenAlex.
- Bacilliform DNA-containing plant viruses in the tropics: commonalities within a genetically diverse group.Molecular plant pathology · 2013Review
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Rice tungro bacilliform virus (RTBV) is a plant pararetrovirus. The large intergenic region (LIGR) of RTBV having a single transcriptional promoter produces more than genome length pregenomic RNA (pgRNA) which directs synthesis of circular double-stranded viral DNA and serves as a polycistronic mRNA. By computer-aided analysis of LIGR, the 11 RTBV isolates sequenced so far were compared with respect to structural organization of promoter and pgRNA 5'-leader. The results revealed only 74.90% identity at LIGR between 'Southeast Asian' (SEA) and 'South Asian' (SA) isolates of RTBV indicating considerable variation between two groups which was also reflected during analysis of promoter and leader sequence. The predicted promoter region of SA isolates exhibited major variations in terms of transcription start site and consensus sequences of cis motifs expecting further exploitation of promoter region of SA isolates. The reduced length of leader sequence along with less numbers and different arrangements of small open reading frames (sORFs) in case of SA isolates might have some alterations in the control of expression of ORF II and III between the two groups. In spite of these variations, the leader sequence of both SEA and SA type isolates showed formation of stable secondary or stem-loop structure having identical features for efficient translation. The conservation of sORF1 at seven nucleotides upstream of stable stem-loop, CU-rich sequence following the sORF1 stop codon and AU-rich shunt landing sequence immediately downstream of the secondary structure suggested conservation of ribosomal shunt mechanism in all RTBV isolates irrespective of their geographical distribution.
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