The invention provides an anther-specific expression promoter in plant, wherein said promoter is a promoter of
Oncidium
aureusidin synthase gene OgAS1, and has a sequence as SEQ ID No: 3. The invention provides further a gene expression cassette that comprised a promoter having a DNA sequence as SEQ ID No: 3, and a polynucleotide that encode an open reading frame and is linked to the 3′ end of said promoter, wherein said promoter can activate the transcription of said polynucleotide in an organism containing said gene expression cassette. The invention provides also a gene expression vector that contains a promoter having DNA sequence as SEQ ID No: 3. The invention provides further a process for producing a transgenic plant or part of organ, tissue or cell of said transgenic plant containing the above-described gene expression cassette.
本发明提供了一种植物中的花药特异性表达启动子,其中所述启动子是Oncidium aureus芸香酮合成酶
基因OgAS1的启动子,具有
SEQ ID No:3的序列。本发明进一步提供了一个
基因表达载体,其包括一个具有
SEQ ID No:3的DNA序列的启动子和一个与该启动子的3'端连接的编码开放阅读框的多核苷酸,其中所述启动子可以在包含所述
基因表达载体的
生物体中激活所述多核苷酸的转录。本发明还提供了一个包含具有
SEQ ID No:3的DNA序列的启动子的
基因表达载体。本发明还提供了一种制备转
基因植物或包含上述
基因表达载体的器官、组织或细胞的过程。