不定胚誘導法によって増殖されたミシマサイコ再分化植物個体における染色体数の変異

概要

論文の詳細を見る
The chromosome numbers of Bupleurum falcatum L. plant grown from the seeds collected at three different habitats in Japan (Mishima, Shizuoka Pref.; Hiraodai, Hukuoka Pref.; Kirishima, Kagoshima Pref.) were counted. Aneuploidal variations were observed in the plants from Hiraodai (2 n=20 in twenty plants and 2 n=19 in two plants) and from Kirishima(2 n=26 in nine plants, 2 n=25 in one plant and 2 n=23 in one plant), whereas the chromosome number of the plants from Mishima was 2 n=26. The karyotype of B. falcatum plants regenerated through somatic embryogenesis by callus cultures of a plant from Mishima was found to be identical with that of the plants grown from the seeds. However, aneuploidal variations (2 n=24, 23, 22) were observed in the plants regenerated from the callus of a plant from Kirishima although these plants were propagated from a single plant. In addition, some of the plants propagated from the plants collected at Hiraodai and Kirishima showed a mixoploidy, and dicentric chromosomes were found in some cells of the mixoploid plants.
日本生薬学会の論文
1989-03-20