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子1的玉米不稳定因子编码了一种核蛋白,该蛋白在核发育过程中影响氧化还原积累

Debamalya Chatterjee¹, Ziru Zhang², Pei-Yu Lin³

¹Department of Plant Science, The Pennsylvania State University, University Park, PA 16802, USA.

|November 26, 2024

概括

色1 (Zmufo1) 基因的玉米不稳定因子对于基底内精子转移层的发展至关重要. 突变导致缺陷被抗氧化剂纠正,揭示了ZmUFO1的缺陷.

科学领域:

植物生物学植物生物学
分子遗传学分子遗传学
核心开发开发核心开发

背景情况:

玉米 (Zea mays L.) 核中的基底内转移层 (BETL) 便于营养物质的运输.
了解BETL的发展是提高核营养和产量的关键.

研究的目的:

研究色1 (Zmufo1) 基因不稳定因子在玉米BETL发育中的作用.
阐明Zmufo1在内核开发中的功能基础的分子机制.

主要方法:

在玉米中两种Zmufo1突变基因的表征.
在体外培养有抗氧化剂补充的核种植.
转录组分析和表观遗传学分析 (基因组甲基化).
酵母二杂交和化酶互补测定蛋白质相互作用.

主要成果:

Zmufo1突变体表现出BETL缺陷,活性氧物种增加,DNA损伤和细胞死亡.
抗氧化剂治疗可以拯救Zmufo1突变体中的细胞缺陷.
转录组分析揭示了改变的途径,包括三碳酸循环和氧化还原稳定.
突变者表现出改变的染色质结构 (稀有的异染色质) 和减少的基因素甲基化.
ZmUFO1与参与染色质重塑,核运输和转录的蛋白质相互作用.

结论:

Zmufo1在玉米基底内的发育中起着至关重要的作用.
ZmUFO1通过涉及氧化还原平衡和表观遗传修饰的机制调节BETL的发展.
ZmUFO1与关键的细胞机械相互作用,突出显示了它在内核开发中的多方面的作用.

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