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논문 기본 정보

자료유형
학술저널
저자정보
Zhimin Lin (Fujian Provincial Key Laboratory of Genetic Engineering for Agriculture) Jingwan Yan (Fujian Provincial Key Laboratory of Genetic Engineering for Agriculture) Huanxin Yan (Fudan University) Feng Wang (Fujian Provincial Key Laboratory of Genetic Engineering for Agriculture)
저널정보
한국식물생명공학회 Plant Biotechnology Reports Plant Biotechnology Reports 제11권 제2호
발행연도
2017.4
수록면
87 - 95 (9page)

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Characterization of green tissue-specific promoters helps facilitate genetic improvement in crops. Here, we isolated a novel green tissue-specific expression gene Psak encoding photosystem I protein in rice through RTPCR analysis. The 5′ flanking region from ?635 to +60 (transcription start site of Psak as +1) covering parts of Psak gene and its promoter Ppsak was identified as be critical for green tissue-specific expression (including leaves and stems) in rice. Further promoter deletion analyses demonstrated that the promoter region from ?559 to ?232 was necessary and sufficient for green tissue-specific expression of Psak gene. Histochemical assays showed that the GUS expression of this 267-bp region was highly presented in leaves and stems, but reduced or absent in other tissues examined. The GUS expression level of this core promoter region could be 14.6- to 21.6-fold higher than that of the full-length region of Ppsak promoter in leaves and stems. These results combined with cis-acting elements prediction in Ppsak promoter suggested that the TCT motif located in this promoter played a key role in strong green tissue-specific expression.

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