多相进化的基因组基础驱动着指同居基因的分歧选择
Min-Jeong Jang1, Woo-Jong Hong2,3, Young-Soo Park1
1Department of Environmental Horticulture, University of Seoul, Seoul 02504, Republic of Korea.
Nucleic acids research
|July 2, 2023
概括
指家庭基因 (ZF-HDs) 通过多个阶段进化. 迷你指基因 (MIF) 和带有主体基因的指基因 (ZHD) 形成了不同的结构和功能,影响了植物进化.
科学领域:
- 植物基因组学 植物基因组学
- 进化生物学是进化的生物学.
- 分子遗传学 分子遗传学
背景情况:
- 基因家族经历不同的进化,获得专门的结构和功能.
- 指家庭主体基因 (ZF-HDs),包括迷你指基因 (MIFs) 和指与家庭主体基因 (ZHDs),表现出竞争性功能.
研究的目的:
- 在植物基因组中对ZF-HD进行全面的结构和功能分析.
- 阐明MIFs和ZHDs的进化史和功能分歧.
- 确定MIF-I在植物发育中的新功能.
主要方法:
- 90个植物基因组的全基因组注释和比较分析.
- 遗传学分析以重建进化关系.
- 在大米中进行基因编辑,以研究基因功能.
主要成果:
- MIF (MIF-Is) 和ZHD显示了不同的图案组合,其中一些MIF (MIF-Zs) 分享了ZHD特定的图案.
- 遗传学数据表明MIF-Zs和ZHDs共享一个共同的祖先,而MIF-Is则分别起源.
- 通过与ZHDs的相互作用,确定了MIF-Is在调节水和花粉表面模式中的新功能.
结论:
- ZF-HDs的演变涉及多相分歧,包括从祖先的MIFs形成MIF-I和ZHDs.
- 家庭主体 (HD) 融入MIF-Zs导致ZHDs的出现.
- 独立扩张和MIF-Is和ZHDs的谱系特异性调整塑造了植物多样性.
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