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Chromosome numbers in some species and hybrids ofCentaurea

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Summary

Chromosome counts are given for various species and hybrids ofCentaurea.

In the subgenusCyanus Cass.,C. Scabiosa andC. collina have 2n=2x=20 and 2n=6x=60 chromosomes respectively. The controlledF 1 andF 2 hybridsC. Scabiosa × C. collina are approximately pentaploid, owing to the formation of unreduced egg cells.

In the subgenusJacea Cass.,C. Jacea, C. nemoralis (three varieties)C. nigra and theF 1 hybridC. nemoralis? var.eradiata × C. n. var.radiata all agree in chromosome number, 2n=4x=44.C. pratensis equally hasn=22 chromosomes.

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References

  • Darlington, C. D. (1937).Recent Advances in Cytology, 2nd ed. London.

  • Marsden-Jones, E. M. andTurrill, W. B. (1937). “Genetical studies inCentaurea Scabiosa L. andCentaurea collina L.”J. Genet. 34, 487–95.

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Authors and Affiliations

  1. John Innes Horticultural Institution, Merton

    Basudev Roy

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  1. Basudev Roy
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Roy, B. Chromosome numbers in some species and hybrids ofCentaurea . Journ. of Genetics 35, 89–95 (1937). https://doi.org/10.1007/BF02982317

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  • DOI: https://doi.org/10.1007/BF02982317

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