Sequencing of peach latent mosaic viroid variants from nine North American peach cultivars shows that this RNA folds into a complex secondary structure

被引：36

作者：

Pelchat, M

Lévesque, D

Ouellet, J

Laurendeau, S

Lévesque, S

Lehoux, J

Thompson, DA

Eastwell, KC

Skrzeczkowski, LJ

Perreault, JP ^{[1
]}

机构：

[1] Univ Sherbrooke, Fac Med, Dept Biochim, Sherbrooke, PQ J1H 5N4, Canada

[2] CFIA, Ctr Plant Hlth, Sidney, BC V8L 1H3, Canada

[3] Washington State Univ, Dept Plant Pathol, Prosser, WA 99350 USA

来源：

VIROLOGY | 2000年 / 271卷 / 01期

关键词：

D O I：

10.1006/viro.2000.0288

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

We sequenced 34 new peach latent mosaic viroid (PLMVd) variants isolated from nine different peach cultivars. This study provides the widest view of PLMVd diversity reported to date and includes the original characterization of North American variants, which cannot be differentiated from European sequences. PLMVd appears as a species in which each isolate is a complex mixture of RNAs. Analysis of base-pair covariations supports the hypothesis that PLMVd folds into a complex branched structure with the potential of including three new pseudoknots. The resulting "globular-like" structure is in contrast to the rod-like one adopted by most other viroids, (C) 2000 Academic Press.

引用

页码：37 / 45

页数：9

共 18 条

[1] Rapid generation of genetic heterogeneity in progenies from individual cDNA clones of peach latent mosaic viroid in its natural host [J].