Abstract
The distribution and allelic expressivity of hybrid necrosis genes (Ne 1 and Ne 2) were studied in 21 winter (mostly exotic) and 43 spring type elite wheat genotypes, by crossing them with two known testers, C 306 (Ne 1-carrier) and HD 2380 (Ne 2-carrier).Ne 1 gene was present in one north-west Himalayan winter wheat landrace, Shoure Local, but absent in the other winter as well as spring wheats. Ne 2 gene was prevalent to a much lower extent in the exotic winter wheat germplasm (31.57%) as compared to the recently developed Indian and Mexican spring wheat semidwarfs (69.80%). This may suggest that breeders have tried to preclude hybrid necrosis by selecting for non-carrier genotypes in the development of exotic winter wheats in contrast to the situation in spring wheats. Based on the degree of expression of hybrid necrosis genes in the F1 hybrids, the carrier genotypes were characterized with respect to the allelic strength of the hybrid necrosis genes. The 27 non-carrier genotypes of the two ecotypes identified in the present study have a greater potential use in future hybridization programmes so as to overcome the problem of hybrid necrosis.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Akerman, A. & J. MacKey, 1949. Attempt to improve the yield of spring wheat. II. Crosses between spring and winter wheats. Sveriges Utsadesforenings Tidskrift 19: 105-117.
Bijral, J.S., B.B. Gupta, B. Singh, T.R. Sharma, K.S. Kanwal & S.C. Gupta, 1990. Hybrid necrosis in wheat. lndian J Genet 50: 189-191.
Grant M.N. & H. McKenzie, 1970. Heterosis in F1 hybrids between spring and winter wheats. Can J Plant Sci 50: 137-140.
Hermsen, J.G.Th., 1963. The genetic basis of hybrid necrosis in wheat. Genetica 33: 245-287.
Hermsen, J.G.Th., 1963. Hybrid necrosis as a problem for the wheat breeder. Euphytica 12: 147-161.
Kochumadhavan, M., S.M.S. Tomar & P.N.N. Nambisan, 1980. Investigations on hybrid necrosis in wheat. Indian J Genet 44: 496-502.
Mani, S.C., 1972. A genetic study of parameters governing yield in crosses involving winter and spring wheats in Triticum aestivum L. em. Thell. Ph.D. Thesis, P.G. School, I.A.R.I., New Delhi.
Pinthus, J.M., 1967. Evaluation of winter wheats as a source of high yield potential for the breeding of spring wheat. Euphytica 16: 231-251.
Pugsley, A.T., 1983. The impact of plant physiology on Australian wheat breeding. Euphytica 32: 67-70.
Pukhalskii, V.A., 1996. Material for the study of hybrid necrosis given in the genus Triticum L. Genetika Modeva 32: 341-346.
Runkina, L.A., 1991. Possible association of genes for hybrid necrosis with genes controlling other traits, having breeding value. Nauchuo Tekhnicheslue Byulleten 201: 24-26.
Srivastva, P.S.L. & S.R. Singh, 1988. ldentification of genes for hybrid necrosis in wheat. Indian J Genet 35: 71-72.
Zeven, A.C., 1966. Geographical distribution of genes causing hybrid necrosis in wheat. Euphytica 15: 281-284.
Zeven, A.C., 1976. Seventh supplementary list of wheat varieties classified according to their genotype for hybrid necrosis and geographical distribution of the necrosis genotypes. Euphytica 25: 255-276.
Zeven, A.C., 1979. The prehistoric spread of wheat into Asia Proc. 5th Intern. Wheat Genetics Symp., New Delhi, pp. 103-107.
Zeven, A.C., 1980. The spread of bread wheat over the Old World since the neolithicum as indicated by its genotype for hybrid necrosis. Journal d'Agriculture Traditionnelle et de Botanique Appliquee 27(1): 19-53.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Singh, S., Chaudhary, H. & Sethi, G. Distribution and allelic expressivity of genes for hybrid necrosis in some elite winter and spring wheat ecotypes. Euphytica 112, 95–100 (2000). https://doi.org/10.1023/A:1003824910041
Issue Date:
DOI: https://doi.org/10.1023/A:1003824910041