Skip to Main Content
Blight-resistant American chestnut trees: selection of progeny from a breeding programAuthor(s): Shiv Hiremath; Kirsten Lehtoma; Fred Hebard
Source: In: Gottschalk, Kurt W., ed. Proceedings, 17th U.S. Department of Agriculture interagency research forum on gypsy moth and other invasive species 2006; Gen. Tech. Rep. NRS-P-10. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 54.
Publication Series: General Technical Report - Proceedings
Station: Northern Research Station
PDF: View PDF (34.26 KB)
DescriptionIntroduction of the fungus Cryphonectria parasitica into North America in early 1900s resulted in the demise of the American chestnut, which was once the most dominant forest tree in the eastern United States. While the American chestnut (Castanea dentate) is susceptible, its counterpart from Asia, the Chinese chestnut, is resistant to the blight-causing fungus. Researchers attempting to restore the American chestnut have focused both on the eradication of the fungus as well as on breeding blight-resistant chestnut trees. Although crosses between the American and the Chinese yield a blight-resistant progeny, often the hybrids have the characteristics of the Chinese tree, which is a dwarf and lacks the superior timber qualities associated with the American chestnut. Therefore, researchers have been using a "back-crossing" technique where the resistant hybrids are successively backcrossed to the original American tree in order to flood more American genes into the hybrid. By repeated back-crosses, it will be possible to generate a blight-resistant chestnut having all the superior traits of the American chestnut.
- Check the Northern Research Station web site to request a printed copy of this publication.
- Our on-line publications are scanned and captured using Adobe Acrobat.
- During the capture process some typographical errors may occur.
- Please contact Sharon Hobrla, email@example.com if you notice any errors which make this publication unusable.
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHiremath, Shiv; Lehtoma, Kirsten; Hebard, Fred. 2007. Blight-resistant American chestnut trees: selection of progeny from a breeding program. In: Gottschalk, Kurt W., ed. Proceedings, 17th U.S. Department of Agriculture interagency research forum on gypsy moth and other invasive species 2006; Gen. Tech. Rep. NRS-P-10. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 54.
- Lessons from the field: The first tests of restoration American chestnut (Castanea dentata) seedlings planted in the Southern Region
- Making history: Field testing of blight-resistant American chestnut (Castanea dentata) in the Southern Region
- Status and future of breeding disease-resistant American chestnut
XML: View XML