Journal article
A new gene for resistance to Dysaphis pyri in pear and identification of flanking microsatellite markers
Genome, Vol.51(12), pp.1026-1031
12/2008
Handle:
https://hdl.handle.net/2376/117786
PMID: 19088815
Abstract
Dysaphis pyri
is an important aphid pest of European pear (
Pyrus communis
) cultivars, none of which are currently reported to be resistant. In this study, we produced a progeny of the European pear Comice crossed with an accession of snow pear (Pyrus nivalis) that segregated for resistance to D. pyri in a Mendelian fashion, indicating the presence of a major gene, Dp-1. Following screening of the parents and seedlings with microsatellite markers, cosegregation analysis indicated that Dp-1 is flanked by NH006b and NH014a on linkage group 17, 2.3 and 3.6 cM away, respectively. Evidence is also presented for the duplication of linkage groups 9 and 17, which is a consequence of the allopolyploid origin of pear.
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Details
- Title
- A new gene for resistance to Dysaphis pyri in pear and identification of flanking microsatellite markers
- Creators
- Kate M Evans - East Malling Research, New Road, East Malling, Kent ME19 6BJ, UKCeri L Govan - East Malling Research, New Road, East Malling, Kent ME19 6BJ, UKFelicidad Fernández-Fernández - East Malling Research, New Road, East Malling, Kent ME19 6BJ, UK
- Publication Details
- Genome, Vol.51(12), pp.1026-1031
- Academic Unit
- WSU Wenatchee Tree Fruit REC
- Identifiers
- 99900548096401842
- Language
- English
- Resource Type
- Journal article