scholarly journals Pest categorisation of carrot thin leaf virus

EFSA Journal ◽  
2021 ◽  
Vol 19 (12) ◽  
Author(s):  
◽  
Claude Bragard ◽  
Paolo Gonthier ◽  
Josep Anton Jaques Miret ◽  
Annemarie Fejer Justesen ◽  
...  
Keyword(s):  
Leaf Virus

THESIS SUMMARY STUDIES OF ALFALFA MOSAIC VIRUS AND SUBTERRANEAN CLOVER RED LEAF VIRUS

1979 ◽  
pp. 163-164
Author(s):  
P.B. Teh
Keyword(s):  
Mosaic Virus ◽  
Alfalfa Mosaic Virus ◽  
Subterranean Clover ◽  
Test Plant ◽  
Transmission Frequency ◽  
Virus Source ◽  
Leaf Virus

AMV was shown to be transmitted by sap, aphids and through lucerne seed, but not by Cuscuta. Virus source and test plant influenced transmission frequency. Sap-inoculation tests showed that 20 species of plants were susceptible to this virus. Thirteen species of plants from the fields where AMV had been detected were tested but only three were found to be infected with the virus.

Sugarcane yellow leaf virus. [Distribution map].

2018 ◽  
Author(s):  
Keyword(s):  
Tamil Nadu ◽  
Andhra Pradesh ◽  
Uttar Pradesh ◽  
Saccharum Officinarum ◽  
Yellow Leaf ◽  
Distribution Map ◽  
Sugarcane Yellow Leaf Virus ◽  
Leaf Virus ◽  
Virus Distribution ◽  
New Distribution

Abstract A new distribution map is provided for Sugarcane yellow leaf virus. Luteoviridae: Polerovirus. Hosts: sugarcane (Saccharum officinarum), barley (Hordeum vulgare), sorghum (Sorghum bicolor). Information is given on the geographical distribution in Asia (China, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Jiangxi, Yunnan, India, Andhra Pradesh, Bihar, Haryana, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Punjab, Tamil Nadu, Uttar Pradesh, Uttarakhand, Indonesia, Malaysia, Philippines, Sri Lanka, Taiwan, Thailand), Africa (Egypt, Kenya, Mauritius, Reunion, South Africa, Tunisia), North America (USA, Florida, Hawaii, Louisiana, Texas), Central America & Caribbean (Barbados, Costa Rica, Cuba, Guadeloupe, Guatemala, Martinique, Nicaragua, Puerto Rico), South America (Argentina, Brazil, Colombia, Ecuador, Peru, Venezuela).

scholarly journals Identification and subcellular location of an RNA silencing suppressor encoded by mulberry crinkle leaf virus

Virology ◽  
2019 ◽  
Vol 526 ◽  
pp. 45-51 ◽  
Author(s):  
Quan-You Lu ◽  
Lei Yang ◽  
Jinshan Huang ◽  
Luping Zheng ◽  
Xin Sun
Keyword(s):  
Rna Silencing ◽  
Subcellular Location ◽  
Silencing Suppressor ◽  
Rna Silencing Suppressor ◽  
Leaf Virus

scholarly journals Genome-wide approaches for the identification of markers and genes associated with sugarcane yellow leaf virus resistance

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ricardo José Gonzaga Pimenta ◽  
Alexandre Hild Aono ◽  
Roberto Carlos Villavicencio Burbano ◽  
Alisson Esdras Coutinho ◽  
Carla Cristina da Silva ◽  
...  
Keyword(s):  
Virus Resistance ◽  
Machine Learning Algorithms ◽  
Energy Crop ◽  
Yellow Leaf ◽  
Sugarcane Yellow Leaf Virus ◽  
Association Analyses ◽  
Sugarcane Breeding ◽  
Genetic Base ◽  
Genome Wide ◽  
Leaf Virus

AbstractSugarcane yellow leaf (SCYL), caused by the sugarcane yellow leaf virus (SCYLV) is a major disease affecting sugarcane, a leading sugar and energy crop. Despite damages caused by SCYLV, the genetic base of resistance to this virus remains largely unknown. Several methodologies have arisen to identify molecular markers associated with SCYLV resistance, which are crucial for marker-assisted selection and understanding response mechanisms to this virus. We investigated the genetic base of SCYLV resistance using dominant and codominant markers and genotypes of interest for sugarcane breeding. A sugarcane panel inoculated with SCYLV was analyzed for SCYL symptoms, and viral titer was estimated by RT-qPCR. This panel was genotyped with 662 dominant markers and 70,888 SNPs and indels with allele proportion information. We used polyploid-adapted genome-wide association analyses and machine-learning algorithms coupled with feature selection methods to establish marker-trait associations. While each approach identified unique marker sets associated with phenotypes, convergences were observed between them and demonstrated their complementarity. Lastly, we annotated these markers, identifying genes encoding emblematic participants in virus resistance mechanisms and previously unreported candidates involved in viral responses. Our approach could accelerate sugarcane breeding targeting SCYLV resistance and facilitate studies on biological processes leading to this trait.

scholarly journals Tomato Twisted Leaf Virus: A Novel Indigenous New World Monopartite Begomovirus Infecting Tomato in Venezuela

Viruses ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 327 ◽  
Author(s):  
Gustavo Romay ◽  
Francis Geraud-Pouey ◽  
Dorys Chirinos ◽  
Mathieu Mahillon ◽  
Annika Gillis ◽  
...  
Keyword(s):  
Crop Production ◽  
New World ◽  
Systemic Infection ◽  
Plant Viruses ◽  
Monopartite Begomoviruses ◽  
Bipartite Begomoviruses ◽  
Reading Frame ◽  
Reverse Transcription Pcr ◽  
Infectious Clones ◽  
Leaf Virus

Begomoviruses are one of the major groups of plant viruses with an important economic impact on crop production in tropical and subtropical regions. The global spread of its polyphagous vector, the whitefly Bemisia tabaci, has contributed to the emergence and diversification of species within this genus. In this study, we found a putative novel begomovirus infecting tomato plants in Venezuela without a cognate DNA-B component. This begomovirus was genetically characterized and compared with related species. Furthermore, its infectivity was demonstrated by agroinoculation of infectious clones in tomato (Solanum lycopersicum) and Nicotiana benthamiana plants. The name Tomato twisted leaf virus (ToTLV) is proposed. ToTLV showed the typical genome organization of the DNA-A component of New World bipartite begomoviruses. However, the single DNA component of ToTLV was able to develop systemic infection in tomato and N. benthamiana plants, suggesting a monopartite nature of its genome. Interestingly, an additional open reading frame ORF was observed in ToTLV encompassing the intergenic region and the coat protein gene, which is not present in other closely related begomoviruses. A putative transcript from this region was amplified by strand-specific reverse transcription-PCR. Along with recent studies, our results showed that the diversity of monopartite begomoviruses from the New World is greater than previously thought.

Biological properties and genomic sequence of an isolate of cherry rasp leaf virus from tomato

2020 ◽  
Vol 102 (3) ◽  
pp. 843-848
Author(s):  
Sara A. Bratsch ◽  
Samuel Grinstead ◽  
Benham Lockhart ◽  
Dimitre Mollov
Keyword(s):  
Genomic Sequence ◽  
Biological Properties ◽  
Leaf Virus
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