Lazy gene (Ia) responsible for both an agravitropism of seedlings and lazy habit of tiller growth in rice (Oryza sativa L.)

Kiyomi Abe, Hideyuki Takahashi, Hiroshi Suge

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    19 Citations (Scopus)

    Abstract

    Using an isogenic line of rice having lazy gene (Ia), we studied the correlation between the agravitropic response at the young seedling stage and the lazy habit (prostrate growth of tillers) at the more advanced stage of growth. In this study, it was found that both agravitropism and lazy habit were controlled by the single recessive Ia gene. That is, F2 segregants of Kamenoo×lazy-Kamenoo, which had an agravitropic response at their young seedling stage, showed a lazy habit of growth in the more advanced stage of vegetative growth. On the other hand, seedlings that showed normal gravitropic curvature at their early stage of growth had an upright growth in the mature stage.

    Original languageEnglish
    Pages (from-to)381-386
    Number of pages6
    JournalJournal of Plant Research
    Volume109
    Issue number4
    DOIs
    Publication statusPublished - 1996 Dec

    Keywords

    • Gravitropism
    • Kamenoo
    • Lazy
    • Oryza saliva l
    • Reciprocal crossing

    ASJC Scopus subject areas

    • Plant Science

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