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Comparison of chromosome size in species of anemone and their hybrids

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Total complement length has been determined in six species ofAnemone L. comprising 4 diploids (A. silvestris L.,A. virginiana L.,A. riparia Fern., andA. cylindrica Gray), 1 tetraploid (A. multifida Poir.), and 1 hexaploid (A. drummondii S. Wats.). Since chromosome complements of the parents fall in three definite size classes, the fate of the parental chromosomes can be followed in interclass hybrids. Thus it is possible to compare relationships expected on the basis of parental measurements and those obtained in a series of 11 hybrids of which 6 are diploid, 4 triploid and 1 pentaploid, in 2 amphiploids of known origin, and in the widely distributed tetraploid,A. multifida. Evidence is presented for the maintenance of differences in parental chromosome length in hybrids and in recent and long-established amphiploids.

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This study was supported by grant No. T94 from the National Research Council of Canada.

The author is indebted to Dr.K. H. Rothfels for his sustained interest and critical reading of the manuscript.

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Heimburger, M. Comparison of chromosome size in species of anemone and their hybrids. Chromosoma 13, 328–340 (1962).

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  • Developmental Biology
  • Size Classis
  • Parental Measurement
  • Chromosome Length
  • Parental Chromosome