Phytoph 8-4

Parent 1:	V71-370
Parent 2:	PI407162
Heritability:	0.89
Interval length:	7.73
Trait name:	Reaction to Phytophthora sojae infection

Controlled vocabulary terms associated with the QTL

Source	Accession Number
Plant Trait Ontology	TO:0000439

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Other related QTL's

Phytoph 8-1

Phytoph 8-2

Phytoph 8-3

References for the QTL

Tucker et al. 2010

Mapping Quantitative Trait Loci for Partial Resistance to Phytophthora sojae in a Soybean Interspecific Cross
Crop Sci. 2010, 50(2):628-635

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Maps containing Phytoph 8-4

Map	LG	Start	End
GmComposite2003_F	F	63.68	71.41	See this QTL region in Sequence Browser

Loci positively associated with the QTL

K644_1

Parent_1

15.47cm

K644_1

Parent_2

21.96cm

K644_1

Phenotypic_R2

K644_1

Favorable_allele_source

PI407162

K644_1

Additive_effect

2.47

Population types used in identification of the QTL

F10 and F11 RIL

Parent trait values associated with the QTL

Parent	Trait
V71-370	Moderate partial P. sojae resistance
PI407162	Low partial P. sojae resistance

Loci associated with the QTL

K644_1

Methods used to identify the QTL

MapMaker 3.0b

JoinMap 3.0

QTLCartographer 2.0

Comments about the QTL

Parent 1 is PI407162, Parent 2 is V71-370

Location approximate: no specific marker given in publication. QTL limited to an interval at the nearest marker. See publication for additional details.

Variable used to assess resistance to P. sojae was lesion length using a tray test

Publication reported values for 3 trials over 2 years; only one trial presented in SoyBase; see publication for more information

Trait is reaction to Phytophthora sojae, the causative organism for Phytophthora root and stem rot and Phytophthora seed decay.

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

U.S. Public Domain