Abstract
Hybrid dwarfness is the phenomenon that after crossing of normal genotypes dwarfs are obtained in the F1 or not before the F2-generation. The literature on hybrid dwarfness in wheat is critically discussed. A new hypothesis on its genetic basis is given, taking McMillan's (1937) as a starting point. Dwarfness is assumed to be determined by the additive interaction of three genes D 1, D 2 and D 3, differing in dominance relations and in quantitative contribution to the dwarf phenotype.
Three dwarf types are described. Type 1-dwarfs are dwarf during their whole life cycle and normally do not produce seeds. Type 2-dwarfs start as normal seedlings, become dwarfs while tillering and die dwarfs; some produce seeds, others do not. Type 3-dwarfs emerge as normal seedlings, become dwarfs during the tillering stage, but after some time they start to shoot and develop into nearly or even completely normal plants; in the F2 the proportion of dwarfs decreases during the growing season. The occurrence and genetic basis of the three dwarf types is discussed.
On the basis of their genotype 315 varieties and lines are divided into six genotypeclasses. Over 1000 intra- and inter-class crosses were made and F1, F2, F3, and BC studied. Also some triple crosses and crosses with pure breeding dwarfs were investigated. In general the results obtained fit the hypothesis. Unstable ratios involving type 3-dwarfs are discussed separately.
Linkage of the dwarf gene D 2 and the necrosis gene Ne 2 (both on chromosome 2B (XIII) was apparent from F2-data and from results of a triple cross in which both forms of hybrid weakness occurred. Crossing-over between D 2 and Ne 2 is calculated to be 34%.
Methods are outlined to use hybrid dwarfness in a wheat breeding programme. The possible incompleteness of the three-gene hypothesis and the variability of dwarfness are discussed and finally some suggestions are made for future research.
Similar content being viewed by others
References
Ahluwalia, M. and Sikka, S. M., 1962. Inheritance of the grass clump character in wheat. Ind. Journ. of Agric. Sci. 32: 141–148.
Busbice, T. H. and Wilsie, C. P., 1966a. Genetics of Medicago sativa L. I. Inheritance of dwarf character Dw 1. Crop Sci. 6: 327–330.
Busbice, T. H. and Wilsie, C. P., 1966b. Genetics of Medicago sativa L. II. Inheritance of dwarf character Dw 2. Crop Sci. 6: 439–441.
Butany, W. T., Bhattacharyya, R. K. and Daya, L. R., 1959. Inheritance of dwarf character in rice and its interrelationship with the occurrence of anthocyanin pigment in various plant parts. Ind. Journ. Genet. and Pl. Breed. 19: 64–72.
Canvin, D. T. and Evans, L. E., 1963. Note on a method of inducing seed production in dwarf wheat plants. Can. Journ. of Pl. Sci. 43: 419–421.
Cooper, J. P., 1958. The effect of gibberellic acid on a genetic dwarf in Lolium perenne. New Phytol. 235–238.
Dobzhansky, T., 1951. Genetics and the origin of species. Third edition, 1951. Chapter VII: Isolating mechanisms: 179–212.
Everson, E. H., Muir, C. E. and Vogel, O. A., 1957. Dwarfing in Triticum vulgare (Vill.). Agron. Journ. 49: 521.
Ferguson, J. H. A., 1956. Some applications of binomial probability paper in genetic analyses. Euphytica 5: 329–338.
Gandhi, S. M. and Bhatnagar, M. P., 1961. Genetics of dwarf growth in common wheat. Curr. Sci. 30: 271–272.
Hebert, T. T. and Middleton, G. K., 1955. Lethality in a wheat cross. Agron. Journ. 47: 196.
Hermsen, J. G. Th., 1957. Semi-lethality in hybrid offspring of wheat. Euphytica 6: 18–25.
Hermsen, J. G. Th., 1962. Hybrid necrosis in wheat. Versl. Landbk. Onderz. no. 68.5, 129 pp. Summary in English.
Hermsen, J. G. Th., 1963a. Hybrid necrosis and red hybrid chlorosis in wheat. Proc. 2nd Int. Wheat Genetics Symp., Lund, 1963, Hereditas, suppl. vol 2 (1966): 439–452.
Hermsen, J. G. Th., 1963b. The genetic basis of hybrid necrosis in wheat. Genetica 33: 245–287.
Hermsen, J. G. Th., 1963c. The localization of two genes for dwarfing in the wheat variety Timstein by means of substitution lines. Euphytica 12: 126–129.
Hsu, K. J., Sunderman, D. W. and Ausemus, E. R., 1955. Dwarf plants resulting from crossing different varieties of wheat. Agron. Abstr.: 51.
Hurd, E. A., 1960. Personal communication.
Hurd, E. A. and McGinnis, R. C., 1958. Note on the location of genes for dwarfing in Redman wheat. Can. Journ. of Pl. Sci. 38(4): 506.
Jodon, N. E. and Beachell, H. M., 1943. Rice dwarf mutations and their inheritance. Journ. of Hered. 34: 155–160.
Kadam, B. S., 1937. Genes for dwarfing in rice. Nature, London, 139: 1070.
Kostyuchenko, I. A., 1936. The premature perishing of the hybrids in wheat crosses. Bull. of Appl. Bot., Genet. and Pl. Breed., Series A, 19: 127–137. In Russian.
Mc Millan, J. R. A., 1937. Investigations on the occurrence and inheritance of the grass clump character in crosses between varieties of Triticum vulgare (Vill.). Counc. for Scient. and Ind. Res., Bull. no. 104, 68 pp.
Metzger, R. J., 1964, 1966. Personal communications.
Miyazawa, B., 1921. Dwarf forms in barley. Journ. Genet. 11: 205–208.
Moore, K., 1966. The physiological control of F1-grass dwarfs in Triticum aestivum L. Euphytica 15: 329–347.
Morrison, J. W., 1957. Dwarfs, semi-lethals and lethals in wheat. Euphytica 6: 213–223.
Morrison, J. W. and Gfeller, F., 1957. Dwarfness in common wheat. Cereal News 3,2: 41–45.
Mosteller, F. and Tukey, J. F., 1946. Binomial Probability Paper. Printed by Codex Book Company, Norwood, Mass., U.S.A.
Nagao, S., 1951. Analysis and relationships of characters in rice. III. Abnormal mutant characters and their inheritance. Dwarfness. Adv. in Genet. 4: 195–199.
Nieves, R., 1937. Herencia de algunos caracteres morfologicos y fisiologicos en el trigo. Arch. Fitotecn. Uruguay 2: 413–451.
Nishikawa, K., 1953. Lethality in F1-plants of Triticum dicoccum x Aegilops squarrosa. Seiken Zihô, Rept. Kihara Instit. Biol. Res. 6: 87–90.
Nishikawa, K., 1960. Hybrid lethality in crosses between emmer wheats and Aegilops squarrosa. I. Vitality of F1-hybrids between emmer wheats and Aegilops squarrosa var. typica. Seiken Zihô; Rept. Kihara Instit. Biol. Res. 11: 21–28.
Nishikawa, K., 1962. Hybrid lethality in crosses between emmer wheats and Aegilops squarrosa, II Synthesized 6x wheats employed as test varieties. Jap. Journ. of Genet. 37: 227–236.
Overbeek, J. van, 1938. "Laziness" in maize due to abnormal distribution of growth hormone. Journ. of Hered. 29: 339–341.
Pao, W. K., Li, C. H., Chen, C. W. and Li, H. W., 1944. Inheritance of dwarfness in common wheat. Journ. Amer. Soc. Agron. 36: 417–428.
Phinney, B. O., 1956. Growth response of single gene dwarf mutants in maize to gibberellic acid. Proc. Nat. Acad. Sci. 42: 185–189.
Phinney, B. O., 1961. Dwarfing genes in Zea mays and their relation to the gibberellins. Plant Growth Regulation, Ed. R. M. Klein, Iowa State College Press: 489–501.
Plummer, T. H. and Tomes, M. L., 1958. Effects of indol-acetic acid and gibberellic acid on normal and dwarf tomatoes. Bot. Gaz. 119: 197–200.
Ramiah, K., 1933. Inheritance of height of plants in rice. Ind. Journ. Agric. Sci. 3: 411–432.
Richardson, A. E. V., 1913. Wheat and its cultivation. 10. Wheat improvement. Journ. Dept. Agric. Victoria 11: 65–83.
Richardson, A. E. V., 1924. Wheat and its cultivation. Victorian Dept. of Agric., Bull. 55: 139–140.
Sachs, L., 1953. The occurrence of hybrid semi-lethals and the cytology of Triticum macha and Triticum vavilovi. Journ. Agric. Sci. 43: 204–213.
Stebbins, G. L., 1950. Variation and evolution in plants. Columbia Univ. Press, New York. Chapter VI: Isolation and the origin of species: 189–250.
Stewart, G., 1931. Correlated inheritance in a cross between Dicklow x Sevier wheat. Journ. Am. Soc. Agron. 23: 916–928.
Tanaka, M., 1965. Phylogenetic relationship and species differentiation in genus Triticum with special reference to the genotypes for dwarfness. Memoirs Coll. of Agric., Kyoto Univ., no. 87 (Genet. Series no. 87): 1–30.
Tsunewaki, K., 1960. Monosomic and conventional gene analyses in common wheat. II. Lethality. Jap. Journ. Genet. 35: 71–75.
Tsunewaki, K. and Kihara, H., 1961. F1 monosomic analysis of Triticum macha. Wheat Information Service 12: 1–3.
Vogel, O. A., Craddock, J. C., Jr., Muir, C. E., Everson, E. H. and Rohde, C. R., 1956. Semidwarf growth habit in winter wheat improvement for the Pacific Northwest. Agron. Journ. 48: 76–78.
Vogel, O. A., Allan, R. E. and Peterson, C. J., 1963. Plant and performance characteristics of semi-dwarf winter wheats producing most efficiently in Eastern Washington. Agron. Journ. 55: 397–398.
Waldron, L. R., 1924. A study of dwarfness in wheat accompanied by unexpected ratios. Genetics 9: 212–246.
Waterhouse, W. L., 1930. Australian rust studies. III. Initial results of breeding for rust resistance. Proc. Linn. Soc. Nw. South Wales 55: 596–636.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Hermsen, J.G.T. Hybrid dwarfness in wheat. Euphytica 16, 134–162 (1967). https://doi.org/10.1007/BF00043448
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00043448