Skip to main content
Log in

Genetical analysis of resistance to Mycosphaerella pinodes in pea seedlings

  • Published:
Euphytica Aims and scope Submit manuscript

Summary

In studies of the inheritance of resistance, pea seedlings of seven lines in which stems and leaves were both resistant to Mycosphaerella pinodes were crossed with a line in which they were both susceptible. With seven of the crosses resistance was dominant to susceptibility. When F2 progenies of five crosses were inoculated on either stems or leaves independently, phenotypes segregated in a ratio of 3 resistant: 1 susceptible indicating that a single dominant gene controlled resistance. F2 progenies of one other cross gave ratios with a better fit to 9 resistant: 7 susceptible indicating that two co-dominant genes controlled resistance. The F2 progeny of another cross segregated in complex ratios indicating multigene resistance.

When resistant lines JI 97 and JI 1089 were crossed with a susceptible line and leaves and stems of each F2 plant were inoculated, resistance phenotypes segregated independently demonstrating that leaf and stem resistance were controlled by different genes. In two experiments where the F2 progeny of the cross JI 97×JI 1089 were tested for stem and leaf resistance separately, both characters segregated in a ratio of 15 resistant:1 susceptible indicating that these two resistant lines contain two non-allelic genes for stem resistance (designated Rmp1 and Rmp2) and two for leaf resistance (designated Rmp3 and Rmp4). Evidence that the gene for leaf resistance in JI 1089 is located in linkage group 4 of Pisum sativum is presented.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Ali, S.M., L.F.Nitschke, A.J.Dube, M.R.Krause & B.Cameron, 1978. Selection of pea lines for resistance to pathotypes of Ascochyta pinodes, Ascochyta pisi and Phoma medicaginis var. pinodella. Aust. J. Agric. Res., 29: 841–849.

    Google Scholar 

  • Blixt, S. 1977. The gene symbols of Pisum. Supplement to Pisum Newsletter 9.

  • Clulow, S.A., B.G.Lewis & P.Matthews, 1991a. A pathotype classification for Mycosphaerella pinodes. J. Phytopathology, 131: 322–332.

    Google Scholar 

  • Clulow, S.A., B.G.Lewis & P.Matthews, 1991b. Infection of pea epicotyls by Mycosphaerella pinodes. Mycol. Res. 95: 817–820.

    Google Scholar 

  • Clulow, S.A., B.G. Lewis & P. Matthews, 1992. Expression of resistance to Mycosphaerella pinodes in Pisum sativum. Plant Pathology (in press).

  • Dickinson, C.H. & J.J.Sheridan, 1968. Studies on the survival of Mycosphaerella pinodes and Ascochyta pisi. Ann. appl. Biol., 62: 473–483.

    Google Scholar 

  • Lawyer, A.S., 1984. Diseases caused by Ascochyta spp. In: D.J.Hagedorn, (Ed.) The Compendium of Pea Diseases. pp 11–15. The American Phytopath. Soc., Minnesota, USA.

    Google Scholar 

  • Marshall, G.M., 1962. Germination and seedling evaluation of peas infected with Ascochyta spp. J. nat. Inst. agric. Bot., 9: 170–173.

    Google Scholar 

  • Mather, K., 1951. The Measurement of Linkage in Heredity: 2nd Edn. Methuen, London.

    Google Scholar 

  • Matthews, P., P. Dow, K. Graves, M. Brittain & P.N. Taylor, 1985. Pea Pathology. In: John Innes Annual Report 1983–1984, pp 10–12.

  • Person, L.H., 1961. A method of maintaining viability and ability to sporulate in isolates of Ascochyta. Phytopathol., 51: 797–798.

    Google Scholar 

  • Punithalingham, E. & P.Holliday, 1972. CMI Descriptions of Pathogenic Fungi and Bacteria No. 340: Mycosphaerella pinodes. Commonwealth Mycological Institute, Kew.

    Google Scholar 

  • Ryan, E.W., W.P. Staunton & J.C. Cassidy, 1984. Diseases of vegetables. In: Research Report 1983, Horticulture, Dublin, Irish Republic: An Foras Taluntais (1984), pp 41–42.

  • Sakar, D., F.J.Muehlbauer & J.M.Kraft, 1982. Techniques of screening for resistance to Phoma medicaginis var. pinodella. Crop Science 22: 988–992.

    Google Scholar 

  • Sheridan, J.J., 1973. The survival of Mycosphaerella pinodes on pea haulm buried in soil. Ann. appl. Biol. 75: 195–203.

    Google Scholar 

  • Snoad, B. & P.Matthews, 1969. Neoplasms of the pea pod. In: C.D.Darlington & K.R.Lewis, (Eds.) Chromosomes Today, 2, pp 126–131. Oliver & Boyd Ltd., Edinburgh.

    Google Scholar 

  • Wallen, V.R. 1965. Field Evaluation of the Importance of the Ascochyta Complex on Peas. Can. J. Plant Sci. 45: 27–33.

    Google Scholar 

  • Wallen, V.R., 1974. Influence of the three Ascochyta diseases of peas on plant development and yield. Can. Plant Dis. Surv. 54: 86–90.

    Google Scholar 

  • Wallen, V.R. & J.Jeun, 1968. Factors limiting the survival of Ascochyta spp. of peas in soil. Can. J. Bot., 46: 1279–1286.

    Google Scholar 

  • Wallen, V.R., S.I.Wong & J.Jeun, 1967. Isolation, incidence and virulence of Ascochyta spp. of peas from the soil. Can. J. Bot., 45: 2243–2247.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Clulow, S.A., Matthews, P. & Lewis, B.G. Genetical analysis of resistance to Mycosphaerella pinodes in pea seedlings. Euphytica 58, 183–189 (1991). https://doi.org/10.1007/BF00022819

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00022819

Key words

Navigation