Durable Resistance of Potatoes Against Phytophthora Infestans

Turkensteen, L. J.

doi:10.1007/978-94-011-2004-3_9

Cited by 75 publications

(65 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Bildtstar as female parent. The R-differentials R1, R3, R6, R8 and R9 consistently yield a typical hypersensitive reaction, whereas R4, R2, R10 and R11, presented in decreasing order of their resistance reaction, yield a mixture of pin-point size lesions and slowly expanding and poorly sporulating lesions (Turkensteen, 1989). Most commonly, detached leaves are used for virulence testing.…”

Section: Late Blightmentioning

confidence: 99%

Recent and future developments in potato fungal pathology

Schöber

Turkensteen²

1992

Netherlands Journal of Plant Pathology

Self Cite

View full text Add to dashboard Cite

An overview is given on the world-wide occurrence and frequency of mating type A2 of Phytophthora infestans, on ploidy levels, increased virulence and fitness of the pathogen population in Germany and the Netherlands. Experiments on the survival of oospores in the open showed that these may survive in Europe until the next growing season. The resistance reaction of the differential set of R-genes used to determine virulence of races of P. infestans is found to vary by differential clone and test method. Work has been started to come to a more homogenous differential set. The impact of oospores and the new population of P. infestans on epidemiology and hence on disease forecasting is unknown.During the past 40 years, considerable research efforts have been made to reveal the biochemical pathways of pathogenesis, compatibility and incompatibility of the host-pathogen reaction of P. infestans. However, the questions about host-pathogen recognition, the genes involved and which chemical compounds cause hypersensitivity or durable resistance, have not been answered yet. It is expected that the modem molecular biological approaches will more rapidly lead to such answers. One of such approaches, RFLP fingerprinting, indicated a total replacement of the old European population of P. infestans by a new one, and revealed the origin of Mendelian aberrations found to be due to selfing when crossing isolates.The world-wide occurrence ofPhoma exigua var.foveata, the causal organism of gangrene, is discussed and a clue on its possible origin and time of introduction in Europe is given. Soil infestation is a minor but persistent source of infection and impedes elimination of the pathogen. Green-cropharvesting, a new vine killing method, considerably reduced the level of black scurf caused byRhizoctonia solani and of gangrene as compared to other vine killing methods. Promising results have been obtained combining green-crop-harvesting and the application of antagonistic organisms in controlling black scurf and Erwinia spp. Integrated control of dry rot and gangrene seems to have a better future than the use of systemic fungicides.

show abstract

Section: Late Blightmentioning

confidence: 99%

Recent and future developments in potato fungal pathology

Schöber

Turkensteen²

1992

Netherlands Journal of Plant Pathology

Self Cite

View full text Add to dashboard Cite

show abstract

“…Devastating outbreaks of the disease in North America and Europe in the 1840s initiated breeding for late blight resistance (Wastie, 1991), which at first resulted in introgression of race-specific resistance (R) genes from S. demissum (Ross, 1986). Unfortunately, this racespecific approach turned out not to be durable, because compatible races of P. infestans appeared rapidly and are now present for (combinations of) all 11 known R genes (Turkensteen, 1993). Race-non-specific foliage resistance to late blight in potato appears to be more durable (Thurston, 1971), though true race-nonspecificity is impossible to prove (Johnson, 1979).…”

Section: Introductionmentioning

confidence: 99%

Genetic linkage of QTLs for late blight resistance and foliage maturity type in six related potato progenies

Visker

Heilersig

Kodde³

et al. 2005

Euphytica

View full text Add to dashboard Cite

“…Inicialmente, los programas de mejoramiento genético de varios países utilizaron los genes mayores (genes R) provenientes de la especie silvestre Mexicana Solanum demissum como fuente de resistencia, sin embargo, muchas variedades cuya resistencia vertical se basaba en genes R se volvieron susceptibles en poco tiempo, por lo que se pensó que se deberían generar variedades con resistencia horizontal fundamentada en genes menores, con lo cual se esperaba obtener una resistencia duradera (Turkensteen, 1993;Landeo et al, 1995).…”

Section: Introductionunclassified

“…Initially, breeding programs of several countries used the largest (R genes) from the wild species Mexican Solanum demissum as a source of resistance, however, many varieties whose vertical resistance was based on R genes became susceptible soon genes, so it was thought that should generate varieties with horizontal resistance genes based on smaller, which is expected to get a lasting resistance (Turkensteen, 1993;Landeo et al, 1995).…”

Section: Introductionmentioning

confidence: 99%

Comparación de la resistencia horizontal y vertical contra el tizón tardío de la papa en Toluca

Covarrubias

Hinojosa

López

2017

Remexca

View full text Add to dashboard Cite

ResumenUno de los principales problemas del cultivo de la papa en México y a nivel mundial es el tizón tardío (Phytophthora infestans). Durante 3 años se hicieron evaluaciones bajo las condiciones de campo del Valle de Toluca, el centro de origen de P. infestans, para comparar 10 genotipos de la población A con resistencia vertical (combinación de genes mayores R y genes menores) y 10 genotipos de la población B con resistencia horizontal (sin genes R). La población A fue generada por el INIFAP en México y la población B en Perú por el Centro Internacional de la Papa. Los resultados demostraron que la población A fue significativamente superior en las 5 variables que se utilizaron para evaluar la resistencia [área relativa bajo la curva de infección, pendiente (pendiente de la regresión lineal: tiempo vs. % de infección foliar), % de las lesiones foliares cubiertas por esporangios, número de días después de la emergencia de las plantas cuando se observó la 1 er infección foliar y el rendimiento de tubérculos]. Estos resultados indican que los genes menores de resistencia de la población B operan con menor eficiencia que cuando están combinados con genes R, como ocurre en la población A.Palabras clave: Solanum tuberosum, Phytophthora infestans, genes mayores y menores. AbstractOne of the main problems of potato cultivation in Mexico and worldwide is late blight (Phytophthora infestans). During three years evaluations under field conditions Toluca Valley, the center of origin of P. infestans were to compare 10 genotypes of the population A vertical resistance (combination of higher R genes and minor genes) and 10 genotypes population B with horizontal resistance (no R genes). A population was generated by INIFAP in Mexico and Peru B population by the International Potato Center. The results showed that the population A was significantly higher in the 5 variables that were used to evaluate the resistance [relative area under the curve of infection, slope (slope of the linear regression: time vs. % leaf infection), % of foliar lesions covered by sporangia, number of days after emergence of the plants when the 1st foliar infection and tuber yield was observed]. These results indicate that minor resistance genes of the population B operate less efficiently than when combined with R genes, as in the population A. Keywords: Solanum tuberosum, Phytophthora infestans,major and minor genes. 756 Rev. Mex. Cienc. Agríc. Vol.7 Núm. 4 16 de mayo -29 de junio, 2016 Oswaldo Angel Rubio Covarrubias et al. IntroducciónEl tizón tardío de la papa, causado por el oomiceto Phytophthora infestans Sulc., es uno de los principales problemas para la producción de papa en el mundo (Haverkort et al., 2009). En México, el centro y noreste son las regiones más afectadas por la enfermedad, en donde se hacen al menos dos aplicaciones de fungicidas por semana durante la época de mayor incidencia de la enfermedad (Rubio et al., 2000).Desde la devastación de los campos de papa por el tizón tardío ocurrida en Irlanda en 1845, se intensificaron los ...

show abstract

Durable Resistance of Potatoes Against Phytophthora Infestans

Cited by 75 publications

References 19 publications

Recent and future developments in potato fungal pathology

Recent and future developments in potato fungal pathology

Genetic linkage of QTLs for late blight resistance and foliage maturity type in six related potato progenies

Comparación de la resistencia horizontal y vertical contra el tizón tardío de la papa en Toluca

Contact Info

Product

Resources

About