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Identification and Characterization of the FLOWERING LOCUS T/TERMINAL FLOWER 1 Gene Family in .

08:00 EDT 14th August 2019 | BioPortfolio

Summary of "Identification and Characterization of the FLOWERING LOCUS T/TERMINAL FLOWER 1 Gene Family in ."

The phosphatidylethanolamine-binding protein (PEBP) gene family exists in all eukaryote kingdoms, with three subfamilies: (FLOWERING LOCUS T)-like, (TERMINAL FLOWER 1)-like, and (MOTHER OF FT AND TFL1)-like. genes promote flowering, genes act as a repressor of the floral transition, and genes have functions in flowering promotion and regulating seed germination. We identified and characterized orthologs of the / gene family in petunia to elucidate their expression patterns and evolution. Thirteen /-like genes were isolated from petunia, with the five -like genes mainly expressed in leaves. The circadian rhythms of five -like genes and (petunia CONSTANS ortholog) were figured out. The expression of was contrary to that of , , , and . had a circadian clock different from , but coincided with ; it decreased in daytime and accumulated at night. Two of the -like genes with differential circadian rhythm and higher expression levels, and , were used to transform . Eventually, overexpressing strongly delayed flowering, whereas overexpression of produced extremely early-flowering phenotype. Different from previous reports, , , and were relatively highly expressed in roots. Taken together, this study demonstrates that petunia -like genes, like , are able to respond to photoperiod. The expression pattern of / gene family in petunia contributes to a new insight into the functional evolution of this gene family.

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Name: DNA and cell biology
ISSN: 1557-7430
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