Resistance and partial resistance to Phytophthora sojae in early maturity group soybean plant introductions

Haiyan Jia; James E. Kurle

doi:10.1007/s10681-007-9453-z

Resistance and partial resistance to Phytophthora sojae in early maturity group soybean plant introductions

Haiyan Jia, James E. Kurle

Plant Pathology

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

12 Scopus citations

Abstract

Phytophthora sojae, an important yield limiting pathogen of soybean, causes seed, seedling, root, and stem rots. Losses caused by P. sojae can be controlled by both major gene and partial resistance. Early maturity group (MG) soybeans are an increasingly important crop in northwestern Minnesota and eastern North Dakota. Early MG plant introductions (PIs) from the USDA Soybean Germplasm Collection and early MG public and private cultivars were evaluated for resistance and partial resistance to P. sojae. Of the 113 PIs, PI438445, and PI438454 exhibited resistance to P. sojae races 4, 7, 17, and 28 indicating they may possess either Rps1c, Rps1k, previously unidentified or multiple resistance gene to Phytophthora sojae (Rps) genes. Because they exhibited partial resistance equal to or greater than the standard check cultivar Conrad, three early MG soybean cultivars (MN0902, MN0302, and 91B53) were selected as standard checks to evaluate early MG PIs for partial resistance. Sixty-nine PIs were evaluated for partial resistance to P. sojae races 7 and 25 using the inoculum layer method. Of this group of PIs, 22 had the same level of partial resistance as Conrad to P. sojae race 7 while 19 had the same degree of partial resistance to race 25. Twelve PIs had same level of partial resistance as Conrad to both P. sojae races 7 and 25. The PIs and cultivars identified in this study will be of great value in developing early MG soybean cultivars suitable for planting in Canada and the northern United States.

Original language	English (US)
Pages (from-to)	27-34
Number of pages	8
Journal	Euphytica
Volume	159
Issue number	1-2
DOIs	https://doi.org/10.1007/s10681-007-9453-z
State	Published - Jan 2008

Bibliographical note

Funding Information:
Acknowledgments We would like to thank Dr. James Orf at University of Minnesota for assisting us to select the 113 PIs from the germplasm collection. We also thank Dr. Randall L. Nelson at the USDA Soybean Germplasm Collection for providing the seeds of the PIs and Dr. Anne E. Dorrance at Ohio State University for providing the isolates of P. sojae races 17 and 28. Support for this research was provided by grants from the Minnesota Soybean Research and Promotion Council and the North Central Soybean Research Program.

Keywords

Partial resistance
Phytophthora sojae
Plant introduction
Resistance
Soybean (Glycine max L.)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Resistance and partial resistance to Phytophthora sojae in early maturity group soybean plant introductions",

abstract = "Phytophthora sojae, an important yield limiting pathogen of soybean, causes seed, seedling, root, and stem rots. Losses caused by P. sojae can be controlled by both major gene and partial resistance. Early maturity group (MG) soybeans are an increasingly important crop in northwestern Minnesota and eastern North Dakota. Early MG plant introductions (PIs) from the USDA Soybean Germplasm Collection and early MG public and private cultivars were evaluated for resistance and partial resistance to P. sojae. Of the 113 PIs, PI438445, and PI438454 exhibited resistance to P. sojae races 4, 7, 17, and 28 indicating they may possess either Rps1c, Rps1k, previously unidentified or multiple resistance gene to Phytophthora sojae (Rps) genes. Because they exhibited partial resistance equal to or greater than the standard check cultivar Conrad, three early MG soybean cultivars (MN0902, MN0302, and 91B53) were selected as standard checks to evaluate early MG PIs for partial resistance. Sixty-nine PIs were evaluated for partial resistance to P. sojae races 7 and 25 using the inoculum layer method. Of this group of PIs, 22 had the same level of partial resistance as Conrad to P. sojae race 7 while 19 had the same degree of partial resistance to race 25. Twelve PIs had same level of partial resistance as Conrad to both P. sojae races 7 and 25. The PIs and cultivars identified in this study will be of great value in developing early MG soybean cultivars suitable for planting in Canada and the northern United States.",

keywords = "Partial resistance, Phytophthora sojae, Plant introduction, Resistance, Soybean (Glycine max L.)",

author = "Haiyan Jia and Kurle, {James E.}",

note = "Funding Information: Acknowledgments We would like to thank Dr. James Orf at University of Minnesota for assisting us to select the 113 PIs from the germplasm collection. We also thank Dr. Randall L. Nelson at the USDA Soybean Germplasm Collection for providing the seeds of the PIs and Dr. Anne E. Dorrance at Ohio State University for providing the isolates of P. sojae races 17 and 28. Support for this research was provided by grants from the Minnesota Soybean Research and Promotion Council and the North Central Soybean Research Program.",

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doi = "10.1007/s10681-007-9453-z",

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AU - Kurle, James E.

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N2 - Phytophthora sojae, an important yield limiting pathogen of soybean, causes seed, seedling, root, and stem rots. Losses caused by P. sojae can be controlled by both major gene and partial resistance. Early maturity group (MG) soybeans are an increasingly important crop in northwestern Minnesota and eastern North Dakota. Early MG plant introductions (PIs) from the USDA Soybean Germplasm Collection and early MG public and private cultivars were evaluated for resistance and partial resistance to P. sojae. Of the 113 PIs, PI438445, and PI438454 exhibited resistance to P. sojae races 4, 7, 17, and 28 indicating they may possess either Rps1c, Rps1k, previously unidentified or multiple resistance gene to Phytophthora sojae (Rps) genes. Because they exhibited partial resistance equal to or greater than the standard check cultivar Conrad, three early MG soybean cultivars (MN0902, MN0302, and 91B53) were selected as standard checks to evaluate early MG PIs for partial resistance. Sixty-nine PIs were evaluated for partial resistance to P. sojae races 7 and 25 using the inoculum layer method. Of this group of PIs, 22 had the same level of partial resistance as Conrad to P. sojae race 7 while 19 had the same degree of partial resistance to race 25. Twelve PIs had same level of partial resistance as Conrad to both P. sojae races 7 and 25. The PIs and cultivars identified in this study will be of great value in developing early MG soybean cultivars suitable for planting in Canada and the northern United States.

AB - Phytophthora sojae, an important yield limiting pathogen of soybean, causes seed, seedling, root, and stem rots. Losses caused by P. sojae can be controlled by both major gene and partial resistance. Early maturity group (MG) soybeans are an increasingly important crop in northwestern Minnesota and eastern North Dakota. Early MG plant introductions (PIs) from the USDA Soybean Germplasm Collection and early MG public and private cultivars were evaluated for resistance and partial resistance to P. sojae. Of the 113 PIs, PI438445, and PI438454 exhibited resistance to P. sojae races 4, 7, 17, and 28 indicating they may possess either Rps1c, Rps1k, previously unidentified or multiple resistance gene to Phytophthora sojae (Rps) genes. Because they exhibited partial resistance equal to or greater than the standard check cultivar Conrad, three early MG soybean cultivars (MN0902, MN0302, and 91B53) were selected as standard checks to evaluate early MG PIs for partial resistance. Sixty-nine PIs were evaluated for partial resistance to P. sojae races 7 and 25 using the inoculum layer method. Of this group of PIs, 22 had the same level of partial resistance as Conrad to P. sojae race 7 while 19 had the same degree of partial resistance to race 25. Twelve PIs had same level of partial resistance as Conrad to both P. sojae races 7 and 25. The PIs and cultivars identified in this study will be of great value in developing early MG soybean cultivars suitable for planting in Canada and the northern United States.

KW - Partial resistance

KW - Phytophthora sojae

KW - Plant introduction

KW - Resistance

KW - Soybean (Glycine max L.)

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ER -

Resistance and partial resistance to Phytophthora sojae in early maturity group soybean plant introductions

Abstract

Bibliographical note

Keywords

UN SDGs

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