Summary
Meiotic observations in PMCs were made in eight kinds of interspecific hybrids in Lilium. Three hybrids, ‘6134-S’ × L. cernuum. L. regale × L. leichtlinii maximowiczii and L. auratum platyphyllum × L. henryi showed respectively the mean chromosome association frequencies of 1.4II, 0.8II and 1.5II per cell at MI which were the lowest values hitherto reported in Lilium hybrids. In L. longiflorum × L. henryi, 33.3° of the cells had 1 or 2 multivalents of three to five chromosomes in addition to uni- and bivalents. 12° bivalents and 12 univalents were invariably observed in the triploid hybrid L. longiflorum × L. cernuum. The hybrids between the species belonging to the different sections of the genus generally showed high pollen sterility, with some exceptions. A more or less remote genomic homology was found between the different sections in Lilium.
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Asano, Y. Chromosome association and pollen fertility in some interspecific hybrids of Lilium . Euphytica 31, 121–128 (1982). https://doi.org/10.1007/BF00028314
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DOI: https://doi.org/10.1007/BF00028314