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A Case of balanced lethal factors inantirrhinum majus

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Summary

  1. 1.

    Two factors are described inAntirrhinum majus, which are lethal when homozygous;YYGG is an inviable yellow,YyGG a viable yellow,yyGG andyyGg green, andyygg an inviable white.

  2. 2.

    These factors are linked with about 10 per cent. of crossing over. Hence the double heterozygoteYG yg gives about 9.5 yellow to 1 green, besides inviable plants;i.e. in spite of being a heterozygote it breeds nearly true.

  3. 3.

    A periclinal white-over-green chimaera gave only white plants as seed parent. Its pollen was normal.

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References

  1. Baur, Erwin (1907).Ber. deuts. bot. Ges. XXV, p. 442.

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  4. Mullr, H. J. (1918),Genetics, III, p. 422–499.

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  5. Baur, Herzberg-Fränkel, Husfeld, Saulescu andSchiemann (1929).Zeit. ind. Abst. u. Vererb. L, p. 314.

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Authors
  1. A. E. Gairdner
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  2. J. B. S. Haldane
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Gairdner, A.E., Haldane, J.B.S. A Case of balanced lethal factors inantirrhinum majus . Journ. of Gen. 21, 315–325 (1929). https://doi.org/10.1007/BF02984210

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  • DOI: https://doi.org/10.1007/BF02984210

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