关于玉米核发育中的ZmWAKL的见解:全基因组调查和GA介导的转录
Kun Hu1,2, Qiao Dai3, Babatope Samuel Ajayo3,1
1State Key Laboratory of Crop Gene Exploration and Utilization in Southwest China, Sichuan Agricultural University, Chengdu, 611130, China.
BMC genomics
|December 11, 2023
概括
这项研究确定了58个玉米壁相关激酶类似 (WAKL) 基因,并揭示了它们通过吉伯酸 (GA) 和特定的转录因子的调节,这些因子对玉米核发育至关重要.
科学领域:
- 植物分子生物学 植物分子生物学
- 基因组学就是基因组学.
- 玉米的遗传学 玉米的遗传学
背景情况:
- 壁相关激酶 (WAK) 和壁相关激酶类 (WAKL) 家族对于植物生长至关重要.
- 在玉米发育过程中对WAKL基因调节的理解有限.
研究的目的:
- 玉米WAKL基因的全基因组表征.
- 研究 WAKL 基因调节在玉米核发育中的作用.
主要方法:
- 对WAKL基因的遗传学和结构分析.
- 对cis作用元素的促进体分析.
- 同表达分析和RT-qPCR验证.
- 研究基因相互作用和蛋白质定位.
主要成果:
- 在三个基因组群中确定了58个玉米WAKL基因.
- 在WAKL促进体中发现了对Gibberellic酸 (GA) 反应的元素.
- ZmWAKL38,ZmWAKL42和ZmWAKL52的表达与内核中的GA响应转录因子 (TF5,TF6,TF8) 相对应.
- 验证的GA诱导ZmWAKL和TF基因的上调;TF8上调ZmWAKL52;TF5/TF6分别调节ZmWAKL38/ZmWAKL42.
结论:
- 对ZmWAKL基因表征和调节在玉米开发中的新见解.
- 确定了特定的ZmWAKL基因及其涉及GA和TFs的调节网络.
- 在玉米育种计划中,ZmWAKL基因的潜力.
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