植物学雑誌
Online ISSN : 2185-3835
Print ISSN : 0006-808X
ISSN-L : 0006-808X
44 巻 , 522 号
選択された号の論文の6件中1~6を表示しています
  • Hiroshi Tamiya, Shinkichi Morita
    1930 年 44 巻 522 号 p. 305-316
    発行日: 1930年
    公開日: 2011/01/26
    ジャーナル フリー
  • M. Honda
    1930 年 44 巻 522 号 p. 316-318
    発行日: 1930年
    公開日: 2011/01/26
    ジャーナル フリー
  • 川上 次郎
    1930 年 44 巻 522 号 p. 319-328
    発行日: 1930年
    公開日: 2011/01/26
    ジャーナル フリー
  • 小島 均
    1930 年 44 巻 522 号 p. 328-351
    発行日: 1930年
    公開日: 2011/01/26
    ジャーナル フリー
    The author treated genetically a race of Celosi a cristala L. with inflorescencesbeing mosaic of scarlet and yellow.
    Self-pollinated seeds of mosaic individuals were found, in general, to yield a progeny consisting of self-scarlet, mosaic and self-yellowindividuals; neverthless in the majority of cases the rate of appearanceof the self-scarlet was higher in the progeny from the scarlet parts ofthe mosaic inflorescences than from theself-yellow parts of them; andin a few cases there was no remarkable difference in the rate of segregationfor the inflorescence-colour between the progenies of the scarletparts of mosaic inflorescences and of the yellow parts of the same.
    There were two types of self-scarlet individuals which derived fromthe mosaic strain: homo-self-scarlets and hetero-self-scarlets; and thehomo type ones in no instance segregated.
    By self-pollination the apparently-self-yellow ones produced in themajority of cases some self-scarlets and mosaics besides parental selfyellows;the ratios of those three were very variable. Yet the authorstarting from an apparently-self-yellow which descended from a mosaic, by repeated self-pollinations for several generations, obtained a fixedself-yellow strain.
    The results of the crossing experiments between homo-self-scarletsand self-yellows, namely the cases of F1, F2, F3 and back-crossings, could be explained as a case of Mendelian monohybrid, when the selfyellowsand mosaics were arrayed as one party against the seif-scarlets.
    The abovementioned facts can be explained on the basis of the following assumption:
    Regarding the appearance of flower (inflorescence)-colour, there are two genes which are allelomorphic to each other. One of the genes A, producing scarlet colour, is dominant and the other a, producing yellow colour, is recessive. And A is stable and a is unstable; namely, in some occasions there take place gene-mutations aA, but never Aa. The homo-self-scarlet individuals are AA, the hetero-self-scarlet individuals are Aa and the self-yellow individuals are aa. Sometimes parts of tissues of self-yellow individuals, being caused by gene-mutation aA, can be modified into scarlet. The mosaic individuals are thus derived from self-yellow ones.
  • 大木 麒一
    1930 年 44 巻 522 号 p. 351-359
    発行日: 1930年
    公開日: 2011/01/26
    ジャーナル フリー
  • 1930 年 44 巻 522 号 p. 363-367
    発行日: 1930年
    公開日: 2011/01/26
    ジャーナル フリー
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