Date
8-4-2022 12:00 AM
Poster Abstract
Eastern black walnut (Jug/ans nigra), an economically important tree species, is threatened by thousand cankers disease (TCD) which is caused by the fungal pathogen Geosmithia morbida and vectored by the walnut twig beetle (WTB, Pityophthorus juglandis). Control options for this disease are limited, but breeding walnut for resistance to WTB could offer a solution. There is currently no high-throughput assay to screen host trees for resistance to WTB, which is a prerequisite for identifying resistant walnut varieties. Here, we describe preliminary results of a rapid assay to measure WTB resistance in walnut. This assay is rapid, quantifiable, and can be performed on cut branches - minimizing risk to standing trees. Ultimately, the results of this project will inform breeding efforts to increase TCD resistance in black walnut.
Resistance Against Walnut Twig Beetle (Pityophthorus Juglandis) in Black Walnut (Juglans Nigra)
Eastern black walnut (Jug/ans nigra), an economically important tree species, is threatened by thousand cankers disease (TCD) which is caused by the fungal pathogen Geosmithia morbida and vectored by the walnut twig beetle (WTB, Pityophthorus juglandis). Control options for this disease are limited, but breeding walnut for resistance to WTB could offer a solution. There is currently no high-throughput assay to screen host trees for resistance to WTB, which is a prerequisite for identifying resistant walnut varieties. Here, we describe preliminary results of a rapid assay to measure WTB resistance in walnut. This assay is rapid, quantifiable, and can be performed on cut branches - minimizing risk to standing trees. Ultimately, the results of this project will inform breeding efforts to increase TCD resistance in black walnut.
Comments
2022 FNR Poster Competition, Graduate Research, 1st Place