Euphytica (1997) 96, 225-231

B.X. Qiu, D.A. Sleper and A.P. Rao Arelli (1997)
Genetic and molecular characterization of resistance to Heterodera glycines race isolates 1, 3, and 5 in Peking
Euphytica 96 (2), 225-231
Abstract: Soybean cyst nematode (SCN), Heterodera glycines Ichinohe, has caused severe damage to soybean [Glycine max (L.) Merr.] worldwide since its discovery in 1954. 'Peking' is one of the most important sources in breeding SCN resistant soybean cultivars because it is resistant to Races 1, 3, and 5. Genetic information on SCN Races 1, 3, and 5 from Peking is essential to efficiently develop resistant soybean cultivars. Resistance to Race 3 in Peking was found to be controlled by three genes, but little is known on the inheritance of resistance to Races 1 and 5, and whether alleles conditioning resistance to Races 1 and 5 belong to the same linkage group and are allelic to genes giving resistance to Race 3. To determine the genetic bases of resistance to SCN Races 1, 3, and 5, Peking was crossed to the susceptible line 'Essex' to generate F₁ hybrids. The F₂ population and F _2:3 families were advanced from the F₁ and evaluated for resistance to SCN Race isolates 1, 3, and 5. Resistance to H. glycines Race isolates 1, 3, and 5 in Peking was found to be conditioned by three genes, one dominant and two recessive (Rhg, rhg, rhg). Peking may share similar sets of resistance loci between Races 1 and 3, but not between Races 3 and 5, or between Races 1 and 5.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): D.A. Sleper

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Heterodera glycines	Soybean (Glycine max)