The <i>FT-like</i> gene <i>PehFT</i> in petunia responds to photoperiod and light quality but is not the main gene promoting light quality-associated flowering

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Abstract

In <i>Arabidopsis</i>, flowering is delayed under red light and induced under far red light and blue light. Studies suggest that the florigen, <i>FLOWERING LOCUS T</i>, is involved in the control of light quality-associated flowering in <i>Arabidopsis.</i> In petunia, similar to <i>Arabidopsis</i>, flowering is delayed under red light and induced under blue light, however its mechanism still remains unknown. Here we isolated a gene which has 75% amino acid sequence similarity with <i>Arabidopsis FT</i> (<i>AtFT</i>), named <i>PehFT</i>. By overexpressing <i>PehFT</i> in <i>Arbidopsis</i> and petunia, we tested its ability to induce flowering. Also, by conducting expression analyses of <i>PehFT</i> under different light quality treatments, we tested its response to light quality. We concluded that <i>PehFT</i>, like <i>AtFT</i>, is a gene which responds to photoperiod and light quality, but unlike <i>AtFT</i>, is not the main gene controlling the light quality-associated flowering.

Journal

  • Plant Biotechnology

    Plant Biotechnology 33(4), 297-307, 2016

    Japanese Society for Plant Cell and Molecular Biology

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