Expression Pattern of Several Flowering-related Genes during Flower Bud Formation in Rhododendron × pulchrum ‘Oomurasaki’

K. Cheon, A. Nakatsuka, Keisuke Tasaki, N. Kobayashi
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引用次数: 3

Abstract

To investigate the relationship between the development of floral buds and the expression pattern of floweringrelated genes, observation of floral organ development and expression analysis of RpFT, RpSOC1, RpLFY, RpTFL1, RpCEN, and RpAP3 were carried out from July to August 2011 of the evergreen azalea ‘Oomurasaki’. After floral meristem development, floral organs, such as sepals, petals, stamens, and carpels, were observed subsequently on the floral meristems. The expression level of RpTFL1 gradually decreased with floral meristem development; however, the expression level of RpFT and RpLFY increased continuously until carpel development and that of RpAP3 began to increase with stamen development. RpSOC1 and RpCEN showed an irregular expression pattern during floral bud development. These results suggest that the period of floral organ development can be determined by the expression pattern of RpTFL1, RpFT, RpLFY, and RpAP3 in evergreen azalea ‘Oomurasaki’.
乌氏杜鹃花芽形成过程中几个花相关基因的表达模式
为探讨花蕾发育与开花相关基因表达模式的关系,于2011年7 - 8月对常绿杜鹃花‘Oomurasaki’进行了花器官发育观察和RpFT、RpSOC1、RpLFY、RpTFL1、rppcen和RpAP3基因的表达分析。花分生组织发育后,在花的分生组织上依次观察到萼片、花瓣、雄蕊和心皮等花器官。RpTFL1的表达水平随着花分生组织的发育逐渐降低;而RpFT和RpLFY的表达量一直持续到心皮发育,RpAP3的表达量随着雄蕊的发育开始增加。RpSOC1和rppcen在花芽发育过程中呈不规则表达模式。这些结果表明,RpTFL1、RpFT、RpLFY和RpAP3在常绿杜鹃花中的表达模式可以决定花器官发育的周期。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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