Genomic regions on chromosome 5H containing a novel QTL conferring barley yellow dwarf virus-PAV (BYDV-PAV) tolerance in barley

Interactions between Metopolophium festucae cerealium (Hemiptera: Aphididae) and Barley yellow dwarf virus (BYDV-PAV)

Interactions between an invasive aphid, Metopolophium festucae (Theobald) subsp. cerealium, and Barley yellow dwarf virus (BYDV-PAV) were studied under laboratory conditions. M. festucae cerealium is an economic pest of wheat and barley that has recently been found in high population densities in wheat in the Pacific Northwest of the United States. BYDV-PAV is the most prevalent and injurious s...

Molecular and Biological Characterization of a Trackable Illinois Isolate of Barley yellow dwarf virus-PAV

Jae Sun Moon and Richard G. Allen, Department of Crop Sciences, University of Illinois, 1102 South Goodwin Ave., Urbana 61801; Leslie L. Domier, Department of Crop Sciences, University of Illinois, 1102 South Goodwin Ave., Urbana 61801 and U.S. Department of Agriculture, Agricultural Research Service, Crop Protection Research Unit, 1102 South Goodwin Ave., Urbana, IL 61801; and Adriana D. Hewin...

Dynamics of Molecular Evolution and Phylogeography of Barley yellow dwarf virus-PAV

Barley yellow dwarf virus (BYDV) species PAV occurs frequently in irrigated wheat fields worldwide and can be efficiently transmitted by aphids. Isolates of BYDV-PAV from different countries show great divergence both in genomic sequences and pathogenicity. Despite its economical importance, the genetic structure of natural BYDV-PAV populations, as well as of the mechanisms maintaining its high...

Cloning and Expression of the Coat Protein Gene of Barley Yellow Dwarf Virus-PAV in Escherichia coli

Improvement of Barley yellow dwarf virus-PAV detection in single aphids using a fluorescent real time RT-PCR.

One of the major factors determining the incidence of Barley yellow dwarf virus (BYDV) on autumn-sown cereals is the viruliferous state of immigrant winged aphids. This variable is assessed routinely using the enzyme-linked immunosorbant assay (ELISA). However, the threshold for virus detection by ELISA can lead to false negative results for aphids carrying less than 10(6) particles. Although m...