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5 期 王建伟等: 甘蓝型油菜转录因子 MYB4 的克隆、亚细胞定位及表达分析 7 8 9
而全面阐明 BnaMYB4 在甘蓝型油菜 Cd 胁迫响应 structural similarities to transcriptional activators [J]. The
Embo Journalꎬ 6(12): 3553-3558.
中的分子机制ꎮ
SHEN X Jꎬ WANG Y Yꎬ ZHANG Y Xꎬ et al.ꎬ 2018.
综上所述ꎬ本研究结果表明:(1) BnaMYB4 编 Overexpression of the wild soybean R2R3 ̄MYB transcription
码一个典型的 R2R3 ̄MYB 转录因子ꎬ其序列特征、 factor GsMYB15 enhances resistance to salt stress and
结构域及进化关系均支持这一分类ꎻ(2) 该蛋白定 Helicoverpa armigera in transgenic Arabidopsis [ J ].
International Journal of Molecular Sciencesꎬ 19(12): 3958.
位于细胞核ꎬ符合转录因子的功能定位ꎬ并在 Cd SHIU S Hꎬ SHIH M Cꎬ LI W Hꎬ 2005. Transcription factor
胁迫下表现出组织特异性表达响应ꎻ(3) 其在根中 families have much higher expansion rates in plants than in
本底表达最高ꎬ暗示其可能在根系 Cd 胁迫响应中 animals [J]. Plant Physiologyꎬ 139(1): 18-26.
WALTER Mꎬ CHABAN Cꎬ SCHÜTZE Kꎬ et al.ꎬ 2004.
发挥基础调控作用ꎬ而在 Cd 胁迫下ꎬ其响应模式 Visualization of protein interactions in living plant cells using
为叶片轻微诱导ꎬ根部变化不明显ꎬ提示 BnaMYB4 bimolecular fluorescence complementation [ J]. The Plant
可能通过不同组织中的调控机制参与甘蓝型油菜 Journalꎬ 40(3): 428-438.
WANG F Bꎬ KONG W Lꎬ WONG Gꎬ et al.ꎬ 2016. AtMYB12
对 Cd 胁迫的适应过程ꎮ 这些发现为进一步解析 regulates flavonoids accumulation and abiotic stress tolerance
BnaMYB4 在重金属胁迫中的功能机制及油菜抗逆 in transgenic Arabidopsis thaliana [J]. Molecular Genetics
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育种提供了重要依据ꎮ
WANG H Jꎬ YIN X Lꎬ DU Dꎬ et al.ꎬ 2022. GsMYB 7 encoding
a R2R3 ̄type MYB transcription factor enhances the tolerance
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homology to MYB proto ̄oncogene products and with

