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An optimized protocol for detecting guard cell specific gene expression by in situ RT-PCR in Brassica rapa

作者：

Yingying Song;Xuewu Guo;Jian Wu;Jiansheng Liang;Runmao Lin;Zhen Yan;Xiaowu Wan

单位：

College of Horticulture, Henan Agricultural University, Zhengzhou 450002, China;Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China;Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, Chin; Institute of Vegetables and Flowers, Chinese Academy of Agricultural Sciences, Beijing 100081, China

关键词：

Brassica rapa;In situ RT-PCR;Gene expression;Bra001929;Protoco

摘要：

It is important to detect specific genes expressed in the guard cells, which control gas exchange and play key roles in response to drought and salt stresses. Due to the genetic transformation of Chinese cabbage (Brassica rapa) has not been well developed, in situ RT-PCR is a valuable option for detecting guard cell specific genes. We reported an optimized protocol of in situ RT-PCR by using an FAMA homologous gene Bra001929 in Brassica rapa. FAMA in Arabidopsis has been verified to be specially expressed in guard cells. We designed specific RT-PCR primers and optimized the protocol in terms of the (a) reverse transcription time, (b) blocking time, (c) antigen-antibody incubation time, and (d) washing temperature. Our approach provides a sensitive and effective in situ RT-PCR method for locating expression in the guard cells in Brassica rapa. Moreover, we proved the guard cell specific expression of Bra001929 in the epidermis indicating its’ applicability as a marker gene for guard cells of Brassica rapa.

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An optimized protocol for detecting guard cell specific gene expression by in situ RT-PCR in Brassica rapa

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