Genetic resistance to soybean rust in PI567099A is at or near the Rpp3 locus

Jeffery D. Ray; James R. Smith; Wilfrido Morel; Noelia Bogado; David R. Walker

doi:10.1080/15427528.2011.555833

Genetic resistance to soybean rust in PI567099A is at or near the Rpp3 locus

Jeffery D. Ray, James R. Smith, Wilfrido Morel, Noelia Bogado, David R. Walker

Research output: Contribution to journal › Article › peer-review

Abstract

Our objective was to map the soybean rust (SBR) resistance genes(s) in PI 567099A. A population segregating for SBR resistance was evaluated in 2008 and 2009 in Paraguay. In both seasons, F2:3 families were grown in a field naturally infested with SBR. F2:3 families were rated as resistant, segregating, or susceptible on the basis of the lesion type present, and this classification was used to infer the F2-phenotype. Molecular markers flanking five SBR-resistance genes were applied to the F2 population, and markers flanking Rpp3 were significantly associated with the observed resistance (P < 0.0001) in both years. The phenotype of 24-F1 plants evaluated in the 2008 season indicated that the resistance was recessive. This is the first report of recessive resistance at or near the Rpp3 locus. Knowledge of the location and nature of resistance in PI 567099A will allow its more efficient utilization as an SBR-resistance source in breeding programs.

Original language	English (US)
Pages (from-to)	219-231
Number of pages	13
Journal	Journal of Crop Improvement
Volume	25
Issue number	3
DOIs	https://doi.org/10.1080/15427528.2011.555833
State	Published - May 2011
Externally published	Yes

Keywords

Glycine max
Mapping
Phakopsora pachyrhizi
Rust
SoybeanC

ASJC Scopus subject areas

Agronomy and Crop Science
Genetics
Soil Science
Plant Science

Online availability

10.1080/15427528.2011.555833

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@article{4e22e590d4c0474680f62037712912a8,

title = "Genetic resistance to soybean rust in PI567099A is at or near the Rpp3 locus",

abstract = "Our objective was to map the soybean rust (SBR) resistance genes(s) in PI 567099A. A population segregating for SBR resistance was evaluated in 2008 and 2009 in Paraguay. In both seasons, F2:3 families were grown in a field naturally infested with SBR. F2:3 families were rated as resistant, segregating, or susceptible on the basis of the lesion type present, and this classification was used to infer the F2-phenotype. Molecular markers flanking five SBR-resistance genes were applied to the F2 population, and markers flanking Rpp3 were significantly associated with the observed resistance (P < 0.0001) in both years. The phenotype of 24-F1 plants evaluated in the 2008 season indicated that the resistance was recessive. This is the first report of recessive resistance at or near the Rpp3 locus. Knowledge of the location and nature of resistance in PI 567099A will allow its more efficient utilization as an SBR-resistance source in breeding programs.",

keywords = "Glycine max, Mapping, Phakopsora pachyrhizi, Rust, SoybeanC",

author = "Ray, {Jeffery D.} and Smith, {James R.} and Wilfrido Morel and Noelia Bogado and Walker, {David R.}",

note = "Funding Information: This work was supported by United States Department of Agriculture-Agriculture Research Service (USDA-ARS) project number 6402-21220-010-00D. The authors appreciate the dedicated work of the USDA-ARS personnel at Stoneville, MS, including Ms. Angelie Davis, Mr. Hans Hinrichsen, Mr. Philip Handly, Mr. Ronnie Griffin, Mr. Marcus Porter, Mr. Kenneth Courtney and Ms. Loria Courtney. In Paraguay, we were assisted in the field and laboratory by Mr. Ismael Morel, Mr. Francisco Saucedo, Mr. Claudio Vigo, Ms. Diana Bado, and Ms. Sergia Portillo. Mr. Luis Enrique Robledo of DIA and Mr. Luis E. Cubilla of CAPECO critically facilitated the Paraguay-based portion of this work. Seed production in Puerto Rico by Ricardo Goenaga and Carlos Torres of the USDA-ARS Tropical Agriculture Research Station was critical for the timely completion of this project. This research could not have been accomplished without these combined efforts.",

year = "2011",

month = may,

doi = "10.1080/15427528.2011.555833",

language = "English (US)",

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AU - Ray, Jeffery D.

AU - Smith, James R.

AU - Morel, Wilfrido

AU - Bogado, Noelia

AU - Walker, David R.

N1 - Funding Information: This work was supported by United States Department of Agriculture-Agriculture Research Service (USDA-ARS) project number 6402-21220-010-00D. The authors appreciate the dedicated work of the USDA-ARS personnel at Stoneville, MS, including Ms. Angelie Davis, Mr. Hans Hinrichsen, Mr. Philip Handly, Mr. Ronnie Griffin, Mr. Marcus Porter, Mr. Kenneth Courtney and Ms. Loria Courtney. In Paraguay, we were assisted in the field and laboratory by Mr. Ismael Morel, Mr. Francisco Saucedo, Mr. Claudio Vigo, Ms. Diana Bado, and Ms. Sergia Portillo. Mr. Luis Enrique Robledo of DIA and Mr. Luis E. Cubilla of CAPECO critically facilitated the Paraguay-based portion of this work. Seed production in Puerto Rico by Ricardo Goenaga and Carlos Torres of the USDA-ARS Tropical Agriculture Research Station was critical for the timely completion of this project. This research could not have been accomplished without these combined efforts.

PY - 2011/5

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N2 - Our objective was to map the soybean rust (SBR) resistance genes(s) in PI 567099A. A population segregating for SBR resistance was evaluated in 2008 and 2009 in Paraguay. In both seasons, F2:3 families were grown in a field naturally infested with SBR. F2:3 families were rated as resistant, segregating, or susceptible on the basis of the lesion type present, and this classification was used to infer the F2-phenotype. Molecular markers flanking five SBR-resistance genes were applied to the F2 population, and markers flanking Rpp3 were significantly associated with the observed resistance (P < 0.0001) in both years. The phenotype of 24-F1 plants evaluated in the 2008 season indicated that the resistance was recessive. This is the first report of recessive resistance at or near the Rpp3 locus. Knowledge of the location and nature of resistance in PI 567099A will allow its more efficient utilization as an SBR-resistance source in breeding programs.

AB - Our objective was to map the soybean rust (SBR) resistance genes(s) in PI 567099A. A population segregating for SBR resistance was evaluated in 2008 and 2009 in Paraguay. In both seasons, F2:3 families were grown in a field naturally infested with SBR. F2:3 families were rated as resistant, segregating, or susceptible on the basis of the lesion type present, and this classification was used to infer the F2-phenotype. Molecular markers flanking five SBR-resistance genes were applied to the F2 population, and markers flanking Rpp3 were significantly associated with the observed resistance (P < 0.0001) in both years. The phenotype of 24-F1 plants evaluated in the 2008 season indicated that the resistance was recessive. This is the first report of recessive resistance at or near the Rpp3 locus. Knowledge of the location and nature of resistance in PI 567099A will allow its more efficient utilization as an SBR-resistance source in breeding programs.

KW - Glycine max

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KW - Phakopsora pachyrhizi

KW - Rust

KW - SoybeanC

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JO - Journal of Crop Improvement

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IS - 3

ER -

Genetic resistance to soybean rust in PI567099A is at or near the Rpp3 locus

Abstract

Keywords

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