A New Allele at theRps3Locus for Resistance toPhytophthora megaspermaf. sp.glycineain Soybean

Ploper, Leonardo Daniel; Athow, K. L.; Laviolette, F. A.

doi:10.1094/phyto-75-690

Cited by 24 publications

(6 citation statements)

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“…2006, Sandhu et al 2005). The Rps1 locus contains five functional alleles ( Rps1 a, 1 b, 1 c, 1 d and 1 k) (Bernard et al 1957, Buzzell and Anderson 1992, Mueller et al 1978), and the Rps3 locus contains three ( Rps3 a, 3 b and 3 c) (Mueller et al 1978, Ploper et al 1985). With the exception of Rps2 , which confers incomplete resistance and is root-specific (Mideros et al 2007), Rps genes usually provide absolute protection (i.e., immunity) against incompatible P. sojae races.…”

Section: Race-specific Resistancementioning

confidence: 99%

Pathogenic diversity of Phytophthora sojae and breeding strategies to develop Phytophthora-resistant soybeans

et al. 2012

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Phytophthora stem and root rot, caused by Phytophthora sojae, is one of the most destructive diseases of soybean [Glycine max (L.) Merr.], and the incidence of this disease has been increasing in several soybean-producing areas around the world. This presents serious limitations for soybean production, with yield losses from 4 to 100%. The most effective method to reduce damage would be to grow Phytophthora-resistant soybean cultivars, and two types of host resistance have been described. Race-specific resistance conditioned by single dominant Rps (“resistance to Phytophthora sojae”) genes and quantitatively inherited partial resistance conferred by multiple genes could both provide protection from the pathogen. Molecular markers linked to Rps genes or quantitative trait loci (QTLs) underlying partial resistance have been identified on several molecular linkage groups corresponding to chromosomes. These markers can be used to screen for Phytophthora-resistant plants rapidly and efficiently, and to combine multiple resistance genes in the same background. This paper reviews what is currently known about pathogenic races of P. sojae in the USA and Japan, selection of sources of Rps genes or minor genes providing partial resistance, and the current state and future scope of breeding Phytophthora-resistant soybean cultivars.

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Section: Race-specific Resistancementioning

confidence: 99%

Pathogenic diversity of Phytophthora sojae and breeding strategies to develop Phytophthora-resistant soybeans

et al. 2012

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“…The genes/alleles Rps1 (including five alleles Rps1-a, Rps1-b, Rps1-c, Rps1-d , and Rps1-k ), Rps7, Rps9, RpsUN1, RpsYu25 and an unnamed Rps gene ( Rps1? ) on chromosome 3, Rps3 (including three alleles Rps3a, Rps3b, Rps3c ) and Rps8 on chromosome 13, Rps2 and RpsUN2 on chromosome 16, and Rps4, Rps5 and Rps6 on chromosome 18 were detected by linkage analysis and genetic mapping ( Kilen et al, 1974 ; Mueller et al, 1978 ; Athow et al, 1980 ; Ploper et al, 1985 ; Buzzell and Anderson, 1992 ; Cregan et al, 1999 ; Gordon et al, 2006 ; Sugimoto et al, 2011 ; Sun et al, 2011 ; Wu et al, 2011 ). RpsYD29 was mapped to a 204.8-kb region on chromosome 3, and two nucleotide-binding site and leucine-rich repeat (NBS-LRR) type genes Glyma03g04030.1 and Glyma03g04080.1 were identified ( Zhang et al, 2013b ).…”

Section: Introductionmentioning

confidence: 99%

Fine Mapping of a Resistance Gene RpsHN that Controls Phytophthora sojae Using Recombinant Inbred Lines and Secondary Populations

et al. 2017

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Phytophthora root rot (PRR), caused by Phytophthora sojae, has negative effects on soybean yield in China and can be controlled by identifying germplasm resources with resistance genes. In this study, the resistance locus RpsHN in the soybean line Meng8206 was mapped using two mapping populations. Initial mapping was realized using two recombinant inbred line (RIL) populations and included 103 F6:8 RILs derived from a cross of Meng8206 × Linhedafenqing, including 2600 bin markers, and 130 F6:8 RILs derived from a cross of Meng8206 × Zhengyang148, including 2267 bin markers. Subsequently, a 159 F2:3 secondary population derived from a cross of Meng8206 × Linmeng6-46, were used to fine map this locus using SSR markers. Finally, the resistance locus from Meng8206 was fine mapped to a 278.7 kb genomic region flanked by SSR markers SSRSOYN-25 and SSRSOYN-44 at a genetic distance of 1.6 and 1.0 cM on chromosome 3 (Chr. 03). Real-time RT-PCR analysis of the possible candidate genes showed that three genes (Glyma.03g04260, Glyma.03g04300, and Glyma.03g04340) are likely involved in PRR resistance. These results will serve as a basis for cloning, transferring of resistant genes and breeding of P. sojae-resistant soybean cultivars through marker-assisted selection.

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“…sojae , but the rise in pathotype diversity has made utilizing single Rps genes less effective in many regions (Anderson, Walch, & Kurle, 2012; Costamilan et al., 2013; Dorrance et al., 2016; Grau, Dorrance, Russin, & Bond, 2004; Kaitany, Hart, & Safir, 2001; Ryley et al., 1998; Schmitthenner, Hobe, & Bhat, 1994; Stewart, Abeysekara, & Robertson, 2014; Yan & Nelson, 2019). Along with the recently identified Rps genes, RpsGZ and RpsX (Jiang et al., 2020; Zhong, Li, Sun, Duan, & Zhu, 2019), more than 30 Rps genes/alleles have been proposed and mapped to nine chromosomes (Anderson & Buzzell, 1992; Athow & Laviolette, 1982; Athow, Laviolette, & Mueller, 1980; Buzzell & Anderson, 1981, 1992; Dorrance, 2018b; Gordon, St. Martin, & Dorrance, 2006; Kilen, Hartwig, & Keeling, 1974; Lin et al., 2013; Ping et al., 2016; Ploper, Athow, & Laviolette, 1985; Sahoo, Abeysekara, Cianzio, Robertson, & Bhattacharyya, 2017; Sugimoto et al., 2012; Sun et al., 2011, 2014; Wu et al., 2011a; Yu et al., 2010; Zhang et al., 2013a, 2013b; Zhu, Huo, Wang, Huang, & Wu, 2007), with many located on chromosome (Chr) 3 (Supplemental Table S1). Although more than 30 Rps genes/alleles have been identified, only a few, Rps1a , Rps1b , Rps1c , Rps1k , Rps3a , and Rps6 , have been deployed in soybean cultivars (Abney et al., 1997; Dorrance, 2018b; Grau et al., 2004; Slaminko, Bowen, & Hartman, 2010).…”

Section: Introductionmentioning

confidence: 99%

Mining germplasm panels and phenotypic datasets to identify loci for resistance to Phytophthora sojae in soybean

et al. 2020

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Phytophthora sojae causes Phytophthora root and stem rot of soybean and has been primarily managed through deployment of qualitative Resistance to P. sojae genes (Rps genes). The effectiveness of each individual or combination of Rps gene(s) depends on the diversity and pathotypes of the P. sojae populations present. Due to the complex nature of P. sojae populations, identification of more novel Rps genes is needed. In this study, phenotypic data from previous studies of 16 panels of plant introductions (PIs) were analyzed. Panels 1 and 2 consisted of 448 Glycine max and 520 G. soja, which had been evaluated for Rps gene response with a combination of P. sojae isolates. Panels 3 and 4 consisted of 429 and 460 G. max PIs, respectively, which had been evaluated using individual P. sojae isolates with complex virulence pathotypes. Finally, Panels 5–16 (376 G. max PIs) consisted of data deposited in the USDA Soybean Germplasm Collection from evaluations with 12 races of P. sojae. Using these panels, genome‐wide association (GWA) analyses were carried out by combining phenotypic and SoySNP50K genotypic data. GWA models identified two, two, six, and seven novel Rps loci with Panels 1, 2, 3, and 4, respectively. A total of 58 novel Rps loci were identified using Panels 5–16. Genetic and phenotypic dissection of these loci may lead to the characterization of novel Rps genes that can be effectively deployed in new soybean cultivars against diverse P. sojae populations.

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A New Allele at theRps₃Locus for Resistance toPhytophthora megaspermaf. sp.glycineain Soybean

Cited by 24 publications

References 0 publications

Pathogenic diversity of Phytophthora sojae and breeding strategies to develop Phytophthora-resistant soybeans

Pathogenic diversity of Phytophthora sojae and breeding strategies to develop Phytophthora-resistant soybeans

Fine Mapping of a Resistance Gene RpsHN that Controls Phytophthora sojae Using Recombinant Inbred Lines and Secondary Populations

Mining germplasm panels and phenotypic datasets to identify loci for resistance to Phytophthora sojae in soybean

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