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AfAP2-1, An Age-Dependent Gene of Aechmea fasciata, Responds to Exogenous Ethylene Treatment
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AfAP2-1, An Age-Dependent Gene of Aechmea fasciata, Responds to Exogenous Ethylene Treatment
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Journal Article
AfAP2-1, An Age-Dependent Gene of Aechmea fasciata, Responds to Exogenous Ethylene Treatment
2016
Overview
The Bromeliaceae family is one of the most morphologically diverse families with a pantropical distribution. To schedule an appropriate flowering time for bromeliads, ethylene is commonly used to initiate flower development in adult plants. However, the mechanism by which ethylene induces flowering in adult bromeliads remains unknown. Here, we identified an APETALA2 (AP2)-like gene, AfAP2-1, in Aechmea fasciata. AfAP2-1 contains two AP2 domains and is a nuclear-localized protein. It functions as a transcriptional activator, and the activation domain is located in the C-terminal region. The expression level of AfAP2-1 is higher in juvenile plants than in adult plants, and the AfAP2-1 transcript level was rapidly and transiently reduced in plants treated with exogenous ethylene. Overexpression of AfAP2-1 in Arabidopsis thaliana results in an extremely delayed flowering phenotype. These results suggested that AfAP2-1 responds to ethylene and is a putative age-dependent flowering regulator in A. fasciata.
Publisher
MDPI AG,MDPI
Subject
/ Arabidopsis - growth & development
/ Arabidopsis Proteins - chemistry
/ Arabidopsis Proteins - genetics
/ Arabidopsis Proteins - metabolism
/ Bromeliaceae - growth & development
/ Flowers - growth & development
/ Gene Expression Regulation, Developmental
/ Gene Expression Regulation, Plant
/ Homeodomain Proteins - chemistry
/ Homeodomain Proteins - genetics
/ Homeodomain Proteins - metabolism
/ Nuclear Proteins - chemistry
/ Nuclear Proteins - metabolism
/ Proteins
