Identification of a protein associated with circulative transmission of Barley yellow dwarf virus from cereal aphids, Schizaphis graminum and Sitobion avenae

2003 ◽  
Vol 48 (19) ◽  
pp. 2083 ◽  
Author(s):  
Xifeng WANG
Keyword(s):  
Barley Yellow Dwarf Virus ◽  
Sitobion Avenae ◽  
Schizaphis Graminum ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Cereal Aphids ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus

Annual variation in strains of barley yellow dwarf virus in Manitoba, and the occurrence of greenbug-specific isolates

1969 ◽  
Vol 47 (8) ◽  
pp. 1277-1283 ◽  
Author(s):  
C. C. Gill
Keyword(s):  
Annual Variation ◽  
Barley Yellow Dwarf Virus ◽  
Rhopalosiphum Padi ◽  
Schizaphis Graminum ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Efficient Vector ◽  
Yellow Dwarf Virus ◽  
High Degree

Seventeen isolates of the aphid-borne barley yellow dwarf virus (BYDV), collected in southern Manitoba in 1966, were transmitted from oats to oats most efficiently by Rhopalosiphum padi. They were transmitted also by Macrosiphum avenae and all but two were transmitted by Schizaphis graminum and Acyrthosiphon dirhodum. Most of these isolates were not transmitted by R. maidis.Only 3 of 25 isolates collected in 1967 were transmitted by the five species of aphids in a pattern similar to that of the isolates collected in 1966. Twenty of the remainder were transmitted with a moderate to high degree of specificity by R. maidis, R. padi, or S. graminum. Two of the latter isolates were transmitted only by S. graminum. When the transmissibility of one of the isolates, for which S. graminum was the most efficient vector, was examined more critically, both the relative and the specific efficiency of the three vectors varied with the age of the infection in the source plants, though S. graminum was always the most efficient vector.

scholarly journals Genetic Regulation of Polerovirus and Luteovirus Transmission in the Aphid Schizaphis graminum

2006 ◽  
Vol 96 (8) ◽  
pp. 828-837 ◽  
Author(s):  
M. E. Burrows ◽  
M. C. Caillaud ◽  
D. M. Smith ◽  
E. C. Benson ◽  
F. E. Gildow ◽  
...  
Keyword(s):  
Salivary Gland ◽  
Barley Yellow Dwarf Virus ◽  
Major Gene ◽  
Genetic Regulation ◽  
Virus Transmission ◽  
Schizaphis Graminum ◽  
Yellow Dwarf ◽  
Dwarf Virus ◽  
Barley Yellow Dwarf ◽  
Yellow Dwarf Virus

Sexual forms of two genotypes of the aphid Schizaphis graminum, one a vector, the other a nonvector of two viruses that cause barley yellow dwarf disease (Barley yellow dwarf virus [BYDV]-SGV, luteovirus and Cereal yellow dwarf virus-RPV, polerovirus), were mated to generate F1 and F2 populations. Segregation of the transmission phenotype for both viruses in the F1 and F2 populations indicated that the transmission phenotype is under genetic control and that the parents are heterozygous for genes involved in transmission. The ability to transmit both viruses was correlated within the F1 and F2 populations, suggesting that a major gene or linked genes regulate the transmission. However, individual hybrid genotypes differed significantly in their ability to transmit each virus, indicating that in addition to a major gene, minor genes can affect the transmission of each virus independently. Gut and salivary gland associated transmission barriers were identified in the nonvector parent and some progeny, while other progeny possessed only a gut barrier or a salivary gland barrier. Hemolymph factors do not appear to be involved in determining the transmission phenotype. These results provide direct evidence that aphid transmission of luteoviruses is genetically regulated in the insect and that the tissue-specific barriers to virus transmission are not genetically linked.

Sign in / Sign up

Export Citation Format

Share Document