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Origin and Induction of the Flax Genotrophs

Part of the Plant Genetics and Genomics: Crops and Models book series (PGG,volume 23)

Abstract

Flax has been selected for two different economic characteristics of yield, fiber and oil. These two forms are phenotypically different and have different agronomical practices associated with their cultivation. In particular, the plants for the fiber crop are grown at a high density. It has been observed for many centuries that subsequent generations of plants grown from seed of the fiber crop show rapid variations in phenotype in spite of the plants essentially being self-fertilizing and homozygous. One possibility for these observations was that the vigor of the seed from the fiber crop was reduced through the generations due to the restriction of available nutrients by the high-density plantings. This hypothesis was examined by Durrant by growing plants with various nutrient regimes and determining the phenotypes following repeated identical treatments or after a succession of different growth environments. It was observed that for a small number of nutrient regimes, some fiber flax varieties had a heritable change in their phenotype, irrespective of their subsequent growth environment. These stably altered inbred lines were termed genotrophs, as at that time it was not known that they were genetically distinct genotypes. The relationships between the various lines, especially those derived from the original variety Stormont cirus, and the timing of when these changes occur, are described. Their molecular comparisons are considered in the next chapter.

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References

  • Aiton W (1834) On the cultivation of flax in Holland and Scotland. Q J Agric 4:159–183

    Google Scholar 

  • Cullis CA (1976) Environmentally induced changes in ribosomal RNA cistron number in flax. Heredity 36:73–80

    CrossRef  Google Scholar 

  • Cullis CA (1979) Quantitative variation in the ribosomal RNA genes in flax genotrophs. Heredity 42(2):237–246

    CAS  CrossRef  Google Scholar 

  • Cullis CA, Charlton L (1981) The induction of ribosomal DNA changes in flax. Plant Sci Lett 20:213–217

    CAS  CrossRef  Google Scholar 

  • Cullis CA, Kolodynska K (1975) Variation in the isozymes of flax (Linum usitatissimum) genotrophs. Biochem Genet 13:687–697

    CAS  CrossRef  Google Scholar 

  • Durrant, A. 1962. Induction, reversion and epitrophism of flax genotrophs. Nature 196:1302–1304

    CrossRef  Google Scholar 

  • Durrant A, Nicholas DB (1970) An unstable gene in flax. Heredity 25:513–527

    CrossRef  Google Scholar 

  • Evans GM (1968a) Nuclear changes in flax. Heredity 23:25–38

    CrossRef  Google Scholar 

  • Evans GM (1968b) Induced chromosomal changes in Linum. Heredity 23:301–310

    CrossRef  Google Scholar 

  • Evans GM, Durrant A, Rees H (1966) Associated nuclear changes in the induction of flax genotrophs. Nature 212:697–699

    CrossRef  Google Scholar 

  • Fieldes MA, Deal CL, Tyson H (1977) Preliminary characterization of peroxidase isozymes isolated from two flax genotrophs. Can J Bot 55:1464–1473

    CrossRef  Google Scholar 

  • Timmis JN, Ingle J (1973) Environmentally induced changes in rRNA gene redundancy. Nat New Biol 244:235–236

    CAS  CrossRef  Google Scholar 

  • Tyson H, Taylor SA, Fieldes MA (1978) Segregation of the environmentally induced relative mobility shifts in flax genotroph peroxidase isozymes. Heredity 40:281–290

    CAS  CrossRef  Google Scholar 

  • Tyson H, Fieldes MA, Starobin J (1986) Genetic control of acid phosphatase Rm and its relation to control of peroxidase Rm in flax (Linum) genotrophs. Biochem Genet 24:369–383

    CAS  CrossRef  Google Scholar 

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Correspondence to Christopher A. Cullis .

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Cullis, C.A. (2019). Origin and Induction of the Flax Genotrophs. In: Cullis, C. (eds) Genetics and Genomics of Linum. Plant Genetics and Genomics: Crops and Models, vol 23. Springer, Cham. https://doi.org/10.1007/978-3-030-23964-0_14

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