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- Title
Mapping of a novel QTL for resistance to cereal cyst nematode in wheat.
- Authors
Williams, K.; Willsmore, K.; Olson, S.; Matic, M.; Kuchel, H.
- Abstract
Cereal cyst nematode (CCN; Heterodera avenae Woll.) is a root pathogen of cereals that can cause severe yield losses in intolerant wheat cultivars. Loci for resistance to CCN, measured by a seedling bioassay, were identified by creating a genetic map based on a Trident/Molineux doubled haploid population of 182 lines. A novel locus accounting for up to 14% of the resistance to CCN was mapped to chromosome 1B of Molineux by association with microsatellite marker loci Xwmc719 and Xgwm140. This locus acts additively with the previously identified CCN resistance loci identified on chromosomes 6B ( Cre8) and 2A ( Cre5 on the VPM1 segment) in this population to explain 44% of the genetic variance for this major wheat pathogen.
- Subjects
WHEAT; PLANT nematodes as carriers of disease; PLANT-pathogen relationships; CHROMOSOMES; GENE mapping; GENETIC engineering
- Publication
Theoretical & Applied Genetics, 2006, Vol 112, Issue 8, p1480
- ISSN
0040-5752
- Publication type
Article
- DOI
10.1007/s00122-006-0251-0