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Effects of Two Signals on Flowering and FT Gene Expression in Off-season Longan

Effects of Two Signals on Flowering and FT Gene Expression in Off-season Longan
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摘要 [Objective] This study aimed to investigate the effects of two signals, H2O2 and NO, on flowering and FT gene expression in off-season longan. [ Method] Nine-year-old off-season longan ＇ Shixia＇ was used as the experimental material and sprayed with signal promoting agent and blocking agent to analyze the dynamic changes of flowering and FT gene expression level. [ Result] The expression level of FT gene in off-season longan increased during the flowering process, and the expression level of FT gene in leaves reached the peak earlier than that in terminal buds. SNP and MV treatments improved FT gene expression in varying degrees. DMTU and L-NNA treatments effectively inhibited FT gene expression in terminal buds, but the inhibitory effects on FT gene expression in leaves were not significant at late stage of flower bud differentiation. [Condusion] According to the flowering performance of longan, H2O2 and NO play an important role in promoting and accelerating longan flowering. [Objective] This study aimed to investigate the effects of two signals, H2O2 and NO, on flowering and FT gene expression in off-season longan. [ Method] Nine-year-old off-season longan ＇ Shixia＇ was used as the experimental material and sprayed with signal promoting agent and blocking agent to analyze the dynamic changes of flowering and FT gene expression level. [ Result] The expression level of FT gene in off-season longan increased during the flowering process, and the expression level of FT gene in leaves reached the peak earlier than that in terminal buds. SNP and MV treatments improved FT gene expression in varying degrees. DMTU and L-NNA treatments effectively inhibited FT gene expression in terminal buds, but the inhibitory effects on FT gene expression in leaves were not significant at late stage of flower bud differentiation. [Condusion] According to the flowering performance of longan, H2O2 and NO play an important role in promoting and accelerating longan flowering.
作者 Lei ZHANG Zekang XU Shuqiang HE Ruixiong LUO
机构地区 Tropical Crops Genetic Resources Institute College of Horticulture and Landscape Architecture
出处 《Agricultural Biotechnology》 CAS 2016年第1期15-18,共4页 农业生物技术（英文版）
基金 Supported by National Nonprofit Institute Research Grant of CATAS-TCGRI(1630032014017) Special Fund for Agro-scientific Research in the Public Interest(201003021) China Agriculture Research System(CARS-33-25)
关键词 LONGAN FLOWERING H2O2 NO FT gene Longan Flowering H2O2 NO FT gene
分类号 S667.2 [农业科学—果树学] Q75 [生物学—分子生物学]
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参考文献17

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Agricultural Biotechnology
2016年 第1期

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