Summary
A genetic analysis of resistance to crown rust in a series of natural populations of Lolium perenne by means of the diallel cross has revealed that heritability is high (58%) and that the genes concerned show complete but ambi-directional dominance for resistance. An environmental correlation was established between the degree of infection and productivity but no genetic correlation was present. The implications of this mode of control for resistance breeding procedures are briefly considered.
Similar content being viewed by others
Literature
Breese, E.L.; Hayward, M.D.: The genetic basis of present breeding methods in forage crops. Euphytica 21, 324–336 (1972)
Carr, A.J.H.: Diseases of herbage crops — some problems and progress. Ann. appl. Biol. 81, 235–239 (1975)
Cruickshank, I.A.M.: Crown rust of ryegrass. N.Z.J. Sci. Technol., 38, 539–543 (1957)
Dickinson, A.G.; Jinks, J.L.: A generalized analysis of diallel crosses. Genetics 41, 65–78 (1956)
Gardner, C.O.; Eberhart, S.A.: Analysis and interpretation of the variety cross diallel and related populations. Biometrics 22, 439–452 (1966)
Griffing, B.: Concept of general and specific combining ability in relation to diallel crossing systems. Austr. J. Biol. Sci. 9, 463–493 (1956)
Hanson, A.A.: Grass varieties in the United States. U.S.Dep. Agriculture. Agricultural Handbook No. 170 (1965)
Hayman, B.I.: The analysis of variance of diallel tables. Biometrics 10, 235–244 (1954)
Jinks, J.L.: The analysis of continuous variation in a diallel cross of Nicotiana rustica varieties. Genetics 39, 767–788 (1954)
Lancashire, J.A.; Latch, G.C.M.: Some effects of crown rust (Puccinia coronata Corda) on the growth of two ryegrass varieties in New Zealand. N.Z.J. Agr. Res. 9, 628–649 (1966)
Mather, K.; Jinks, J.L.: Biometrical Genetics. 2nd Ed. London: Chapman and Hall 1971
McVeigh, K.J.: Breeding for resistance to crown rust (Puccinia coronata Corda var. lolii, Brown) in turf type perennial ryegrass (Loliun perenne). Ph. D. Thesis, Rutgers University, New Brunswick 1975
Oakes, M.W.: The analysis of a diallel cross of heterozygous or multiple allelic lines. Heredity 22, 83–95 (1967)
Wilkins, P.W.: Implications of host-pathogen variation for resistance breeding in the grass crops. Ann. appl. Biol. 81, 257–261 (1975)
Wright, C.E.; Breese, E.L.: The genetic control of blind seed disease resistance in Lolium perenne in relation to breeding practice. Proc. Xth Int. Grassld Cong. pp. 737–741 (1966)
Author information
Authors and Affiliations
Additional information
Communicated by R. Riley
Rights and permissions
About this article
Cite this article
Hayward, M.D. Genetic control of resistance to crown rust (Puccinia coronato Corda) in Lolium perenne L. and its implications in breeding. Theoret. Appl. Genetics 51, 49–53 (1977). https://doi.org/10.1007/BF00299476
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00299476