Comparative Mapping of Three Bacterial, Three Fungal, and One Virus Disease-resistance Genes in Common Bean

Common bacterial blight (CBB), bacterial brown spot (BBS), and halo blight (HB), incited by the bacterial pathogens Xanthomonas campestris pv. phaseoli (Smith) Dye, Pseodomonas syringae pv. syringa, and Pseudomonas syringae pv. phaseolicola, respectively are important diseases of common bean. In addition three fungal pathogens, web blight (WB) Thanatephorus cucumeris, rust Uromyces appendiculatus, and white mold (WM) Sclerotinia sclerotiorum, are also destructive diseases attacking common bean. Bean common mosaic virus is also one of most major virus disease. Resistance genes (QTLs and major genes) to three bacterial (CBB, BBS, and HB), three fungal (WB, rust, and WM), and one viral pathogen (BCMV) were previously mapped in two common bean populations (BAC 6 × HT 7719 and Belneb RR-1 × A55). The objective of this research was to use an integrated RAPD map of the two populations to compare the positions and effect of resistance QTL in common bean. Results indicate that two chromosomal regions associated with QTL for CBB resistance mapped in both populations. The same chromosomal regions associated with QTL for disease resistance to different pathogens or same pathogens were detected in the integrated population.

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Identification of Three Putative Signal Transduction Genes Involved in R Gene-Specified Disease Resistance in Arabidopsis

Genetics ◽

10.1093/genetics/152.1.401 ◽

1999 ◽

Vol 152 (1) ◽

pp. 401-412 ◽

Cited By ~ 1

Author(s):

Randall F Warren ◽

Peter M Merritt ◽

Eric Holub ◽

Roger W Innes

Keyword(s):

Disease Resistance ◽

Pseudomonas Syringae ◽

Resistance Genes ◽

Virulent Strain ◽

Disease Resistance Genes ◽

Avirulence Gene ◽

Detectable Effect ◽

Disease Resistance Gene ◽

Protein Functions ◽

Signal Transduction Genes

Abstract The RPS5 disease resistance gene of Arabidopsis mediates recognition of Pseudomonas syringae strains that possess the avirulence gene avrPphB. By screening for loss of RPS5-specified resistance, we identified five pbs (avrPphB susceptible) mutants that represent three different genes. Mutations in PBS1 completely blocked RPS5-mediated resistance, but had little to no effect on resistance specified by other disease resistance genes, suggesting that PBS1 facilitates recognition of the avrPphB protein. The pbs2 mutation dramatically reduced resistance mediated by the RPS5 and RPM1 resistance genes, but had no detectable effect on resistance mediated by RPS4 and had an intermediate effect on RPS2-mediated resistance. The pbs2 mutation also had varying effects on resistance mediated by seven different RPP (recognition of Peronospora parasitica) genes. These data indicate that the PBS2 protein functions in a pathway that is important only to a subset of disease-resistance genes. The pbs3 mutation partially suppressed all four P. syringae-resistance genes (RPS5, RPM1, RPS2, and RPS4), and it had weak-to-intermediate effects on the RPP genes. In addition, the pbs3 mutant allowed higher bacterial growth in response to a virulent strain of P. syringae, indicating that the PBS3 gene product functions in a pathway involved in restricting the spread of both virulent and avirulent pathogens. The pbs mutations are recessive and have been mapped to chromosomes I (pbs2) and V (pbs1 and pbs3).

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New disease resistance genes in soybean against Pseudomonas syringae pv glycinea: evidence that one of them interacts with a bacterial elicitor

Theoretical and Applied Genetics ◽

10.1007/bf00226123 ◽

1991 ◽

Vol 81 (1) ◽

pp. 133-138 ◽

Cited By ~ 60

Author(s):

N. T. Keen ◽

R. I. Buzzell

Keyword(s):

Disease Resistance ◽

Pseudomonas Syringae ◽

Resistance Genes ◽

Disease Resistance Genes ◽

New Disease

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Recombination fraction and genetic linkage among key disease resistance genes (Co-42/Phg-2 and Co-5/P.ult) in common bean

AFRICAN JOURNAL OF BIOTECHNOLOGY ◽

10.5897/ajb2019.16776 ◽

2019 ◽

Vol 18 (29) ◽

pp. 819-830

Author(s):

Okii Dennis ◽

Badji Arfang ◽

Odong Thomas ◽

Talwana Herbert ◽

Tukamuhabwa Phinehas ◽

...

Keyword(s):

Disease Resistance ◽

Common Bean ◽

Resistance Genes ◽

Genetic Linkage ◽

Recombination Fraction ◽

Disease Resistance Genes

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Soybean resistance genes specific for different Pseudomonas syringae avirulence genes are allelic, or closely linked, at the RPG1 locus.

Genetics ◽

10.1093/genetics/141.4.1597 ◽

1995 ◽

Vol 141 (4) ◽

pp. 1597-1604 ◽

Cited By ~ 4

Author(s):

T Ashfield ◽

N T Keen ◽

R I Buzzell ◽

R W Innes

Keyword(s):

Disease Resistance ◽

Pseudomonas Syringae ◽

Resistance Genes ◽

Disease Resistance Genes ◽

Avirulence Gene ◽

Avirulence Genes ◽

Soybean Resistance

Abstract RPG1 and RPM1 are disease resistance genes in soybean and Arabidopsis, respectively, that confer resistance to Pseudomonas syringae strains expressing the avirulence gene avrB. RPM1 has recently been demonstrated to have a second specificity, also conferring resistance to P. syringae strains expressing avrRpm1. Here we show that alleles, or closely linked genes, exist at the RPG1 locus in soybean that are specific for either avrB or avrRpm1 and thus can distinguish between these two avirulence genes.

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