Summary
Both doubled haploid (DH) and single seed descent (SSD) methods were used to derive homozygous lines from two crosses of barley. The frequency distributions of grain yield, heading date, and plant height of the DH and SSD lines were compared by the Mann-Whitney U test, Kolmogorov-Smirnov twosample test and Wald-Wolfowitz runs test. It was found that the DH lines distributed in the same manner as the SSD lines with respect to the three characters. The results indicated that although the SSD method had more opportunity for recombination than the DH method, it did not produce a sample of recombinants which differed significantly from the DH sample; thus both methods were equally efficient for use in deriving homozygous lines from F1 hybrids in a relatively short time.
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Literature
Choo, T.M. (1981): Doubled haploids for studying the inheritance of quantitative characters. Genetics (in press)
Jensen, C.J. (1975): Barley monoploids and doubled monoploids: Techniques and experience. In: Barley Genetics IV; (ed. Gaul, H.), pp. 316–345. München: Thiemig
Johns, W.A. (1974): A preliminary evaluation of haploidy as a breeding technique in barley (H. vulgare L.). Ph. D. Thesis, Univ. of Guelph, Guelph, Ontario
Pickering, R.A. (1980): Use of the doubled haploid technique in barley breeding at the Welsh Plant Breeding Station. In: Welsh Plant Breeding Station, Report for 1979, pp. 208–226. Aberystwyth, Wales
Reinbergs, E.; Park, S.J.; Song, L.S.P. (1976): Early identification of superior barley crosses by the doubled haploid technique. Z. Pflanzenzücht. 76, 215–224
Riggs, T.J.; Snape, J.W. (1977): Effects of linkage and interaction in a comparison of theoretical populations derived by diploidized haploid and single seed descent methods. Theor. Appl. Genet. 49, 111–115
Siegel, S. (1956): Nonparametric Statistics for the Behavioral Sciences. New York: McGraw-Hill
Snape, J.W. (1976): A theoretical comparison of diploidized haploid and single seed descent populations. Heredity 36, 275–277
Subrahmanyam, N.C.; Kasha, K.J. (1975): Chromosome doubling of barley haploids by nitrous oxide and colchicine treatments. Can. J. Genet. Cytol. 17, 573–578
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Communicated by R.W.Allard
Contribution no. 455 Charlottetown Research Station, Agriculture Canada, P.E.I. (Canada)
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Choo, T.M., Reinbergs, E. & Park, S.J. Comparison of frequency distributions of doubled haploid and single seed descent lines in barley. Theoret. Appl. Genetics 61, 215–218 (1982). https://doi.org/10.1007/BF00273777
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DOI: https://doi.org/10.1007/BF00273777