SoyBase Follow us on Twitter @SoyBaseDatabase
Integrating Genetics and Genomics to Advance Soybean Research

Phomopsis seed decay 2-1
Parent 1:PI417479
Parent 2:Williams82
Heritability:0.41
Num loci tested:26
Percent Variation Explained:21.7
Trait name:Reaction to Diaporthe phaseolorum var sojae Infection

Controlled vocabulary terms associated with the QTL
SourceAccession Number
Plant Trait OntologyTO:0000439

     
Other names for the QTL
PSD 2-1

References for the QTL
Berger and Minor 1999An RFLP marker associated with resistance to phomopsis seed decay in soybean PI 417479 
Crop Sci. 1999, 39(3):800-805

     
Maps containing Phomopsis seed decay 2-1
MapLGStartEnd
GmComposite2003_F F83.1785.17See this QTL region in Sequence Browser

Loci positively associated with the QTL
A708_1Parent_117.8% decay
A708_1Parent_244.4% decay
A708_1Heterozygous34.5% decay
A708_1Phenotypic_R221.700001
A708_1P_value0.000100
A708_1Genetic_effectsDominant
A708_1Favorable_allele_sourcePI417479

Population types used in identification of the QTL
F2 and F2:4

Parent trait values associated with the QTL
ParentTrait
PI417479Resistant
Williams82Susceptible

Loci associated with the QTL
A708_1

Methods used to identify the QTL
ANOVA

Comments about the QTL
Data are for 1993; see reference for other years
Parent_1 is PI417479, Parent_2 is Williams82
Study done by analysis of variance at locus; for purposes of display this was converted to an interval around that locus.
Phomopsis seed decay (PSD) is caused by members of the Diaporthe/Phomopsis genus.






Funded by the USDA-ARS. Developed by the USDA-ARS SoyBase and Legume Clade Database group at the Iowa State University, Ames, IA
 
USDA Logo
Iowa State University Logo