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Titolo:
Comparison of complete nucleotide sequences of genomic RNAs of four Soybean dwarf virus strains that differ in their vector specificity and symptom production
Autore:
Terauchi, H; Kanematsu, S; Honda, K; Mikoshiba, Y; Ishiguro, K; Hidaka, S;
Indirizzi:
Tohoku Natl Agr Exptl Stn, Morioka, Iwate 0220198, Japan Tohoku Natl Agr Exptl Stn Morioka Iwate Japan 0220198 wate 0220198, Japan Natl Agr Res Ctr, Tsukuba, Ibaraki 305, Japan Natl Agr Res Ctr Tsukuba Ibaraki Japan 305 r, Tsukuba, Ibaraki 305, Japan
Titolo Testata:
ARCHIVES OF VIROLOGY
fascicolo: 10, volume: 146, anno: 2001,
pagine: 1885 - 1898
SICI:
0304-8608(2001)146:10<1885:COCNSO>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
APHID TRANSMISSION; READTHROUGH PROTEIN; YELLOWS LUTEOVIRUS; MOLECULAR-BIOLOGY; LEAF VIRUS; BEET; EXPRESSION; TAXONOMY; PAV; IDENTIFICATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
44
Recensione:
Indirizzi per estratti:
Indirizzo: Terauchi, H Tohoku Natl Agr Exptl Stn, 4 Akahira,Shimokuriyagawa, Morioka,Iwate 0220198, Japan Tohoku Natl Agr Exptl Stn 4 Akahira,Shimokuriyagawa Morioka Iwate Japan 0220198
Citazione:
H. Terauchi et al., "Comparison of complete nucleotide sequences of genomic RNAs of four Soybean dwarf virus strains that differ in their vector specificity and symptom production", ARCH VIROL, 146(10), 2001, pp. 1885-1898

Abstract

Soybean dwarf virus (SbDV) is divided into four strains, namely YS, YP, DSand DR YS and YP cause yellowing in soybeans, while DS and DP cause dwarfing. YS and DS are transmitted by Aulacorthum solani, while YP and DP are transmitted by Acyrthosiphon pisum. To clarify the taxonomic relationship between the four strains and to classify SbDV into an appropriate genus in theLuteoviridae, we determined the complete nucleotide sequences of genomic RNAs of four isolates belonging to each of the strains. The genomes of the four isolates had a chimeric form between Barley yellow dwarf virus-PAV and poleroviruses, and the genome organizations were similar to the Australian isolate SbDV Tas-1. In all of the non-coding regions and OR-Fs, nucleotide and deduced amino acid sequence identity between the same symptom-type strains was higher than that between the different symptom-type strains. However, in the N-terminal half of the readthrough domain (RTD) the deduced aminoacid identity between the same aphid transmissibility-type strains was higher than that between the different aphid transmissibility-type strains. These data suggest that the N-terminal half of the RTD is closely related to the aphid transmission specificity, and that the present strains were generated from ancestral Y and D strains by mutations and strong selection pressures of efficient aphid transmission. Therefore, we propose that SbDV should be classified into a new genus in the family Luteoviridae and that the four strains described should be regarded as different strains of the same virus, rather than as distinct virus species.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/04/20 alle ore 19:32:20