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Identification of promoters conferring anther specific expression in rice
- 언어ENG
- URLhttps://db.koreascholar.com/Article/Detail/294371
A male gametophyte, or pollen develops in the anther, and its development plays an important male reproductive process in flowering plants. A properly designed transgene construct can help to tailor transgene expression in plants by altering the expression strength, timing, and location. In this process, the promoter plays a pivotal role in controlling transgene expression. In this research, the promoter regions of rice anther/pollen-specific genes, named as OsMSP1 to OsMSP11,were selected from the microarray data sets covering 4 developmental stage of male gametophyte and then used for the construction of vector by Gateway cloning method and transformed into rice and Arabidopsis. All 11 promoters in rice and 9 in Arabidopsis were displayed as anther/pollen-specific/preferential genes by GUS assay and RT-PCR analysis. Three out of 11 promoters showed consistent results with published data. In this study, we demonstrated on eight new anther/pollen-specific or -preferential promoters (OsMSP1, OsMSP2, OsMSP3, OsMSP4, OsMSP5, OsMSP6, OsMSP8, and OsMSP9, which have not been reported before. Although the expression pattern of different genes active in pollen grains is diverse and complex, these experimental results would be helpful to understand the molecular mechanism of regulatory elements in rice microspore/pollen-specific genes.
