Heterologous expression of flowering locus T promotes flowering but does not affect diurnal movement in the legume Lotus japonicus

Flowering locus T (FT) is known to promote flowering in response to photoperiodic conditions and has recently been shown to contribute to other phenomenon, such as diurnal stomatal movement. In legumes, FTs are classified into three subtypes, though the role of each subtype is not well defined. It h...

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Bibliographic Details
Published in:Plant Biotechnology 2022/06/25, Vol.39(2), pp.155-163
Main Authors: Harada, Akari, Tsuji, Nanami, Fujimoto, Nozomi, Matsuo, Mia, Saito, Miha, Kanzawa, Nobuyuki
Format: Article
Language:English
Subjects:
Arabidopsis
Biotechnology
Diurnal
Flowering
flowering locus T
leaf movement
Legumes
Lotus japonicus
nyctinasty
Original Paper
Plant breeding
Stomata
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Summary:Flowering locus T (FT) is known to promote flowering in response to photoperiodic conditions and has recently been shown to contribute to other phenomenon, such as diurnal stomatal movement. In legumes, FTs are classified into three subtypes, though the role of each subtype is not well defined. It has been reported that when FT of Lotus japonicus (LjFT) is heterologously expressed in Arabidopsis, LjFT functions as a mobile florigen to promote flowering, similar to Arabidopsis FT (AtFT). In this study, we expressed AtFT in L. japonicus using the SUC2 promoter and showed that heterologous expression of AtFT was able to promote flowering in the plant. We also showed that AtFT expression does not affect stomatal closing nor nyctinastic leaf movement. These findings contribute to our understanding of flower development and have potential application to breeding or plant biotechnology.
ISSN:1342-4580
1347-6114
DOI:10.5511/plantbiotechnology.22.0210a