نتایج جستجو برای: tomato yellow ring virus tyrv

تعداد نتایج: 578175  

Journal: :journal of agricultural science and technology 2012
n. beikzadeh b. jafarpour h. rouhani d. peters a. hassani-mehraban

viral symptoms indicative of iris yellow spot virus (iysv) were observed on onion in several fields near chenaran in khorasan razavi province. mechanical inoculation of herbaceous hosts with onion sap extracts from symptomatic plants showed similar symptoms to those described for iysv. the mechanically transmitted virus reacted only with antisera specific to iysv in das-elisa but not with antis...

2016
Ahmed Hadidi Ricardo Flores Thierry Candresse Marina Barba

Next-generation sequencing (NGS) has been applied to plant virology since 2009. NGS provides highly efficient, rapid, low cost DNA, or RNA high-throughput sequencing of the genomes of plant viruses and viroids and of the specific small RNAs generated during the infection process. These small RNAs, which cover frequently the whole genome of the infectious agent, are 21-24 nt long and are known a...

Journal: :Genetics and molecular research : GMR 2015
W S Zai L X Miao Z L Xiong H L Zhang Y R Ma Y L Li Y B Chen S G Ye

Heat shock protein 90 (Hsp90) is a protein produced by plants in response to adverse environmental stresses. In this study, we identified and analyzed Hsp90 gene family members using a bioinformatic method based on genomic data from tomato (Solanum lycopersicum L.). The results illustrated that tomato contains at least 7 Hsp90 genes distributed on 6 chromosomes; protein lengths ranged from 267-...

به­منظور بررسی وضعیت ویروس­های مهم متعلق به جنس نپوویروس از تاکستان­های استان زنجان، نمونه‌برداری در سال­های زراعی 95-۹4 به‌صورت انتخابی از گیاهان دارای نشانه‌های مشکوک به بیماری‌های ویروسی انجام و درمجموع 168 نمونۀ گیاهی دارای نشانه و بدون نشانه گرد‌آوری شد. استخراج آر.ان.­ای کل از بافت­های برگی و آوندی 57 نمونه بر اساس نشانه‌ها و مناطق نمونه‌برداری شده انجام گرفت و cDNA آن­ها ساخته‌ شد و سپس،...

2008
H. CZOSNEK M. LAPIDOT P. Wehling

Tomato (Solanum lycopersicum) production in tropical and subtropical regions of the world is limited by the endemic presence of Tomato yellow leaf curl virus (TYLCV). Breeding programmes aimed at producing TYLCV-resistant tomato cultivars have utilized resistance sources derived from wild tomato species. So far, all reported breeding programmes have introgressed TYLCV resistance from a single w...

2016
Da-Qi Fu Lan-Huan Meng Ben-Zhong Zhu Hong-Liang Zhu Hua-Xue Yan Yun-Bo Luo

Ripening is an important stage of fruit development. To screen the genes associated with pigment formation in tomato fruit, a suppression subtractive hybridization (SSH) cDNA library was constructed by using tomato fruit in the green ripe and break ripe stages, and 129 differential genes were obtained. Using redness as a screening marker, virus-induced gene silencing (VIGS) of the differential ...

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