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对比转录基因分析揭示了长白山脉不同超级的MADS盒基因的差异
Xia Yunrui1, Song Rui1, Yang Xing1
1Jilin Provincial Key Laboratory of Tree and Grass Genetics and Breeding, College of Forestry and Grassland Science Jilin Agricultural University Changchun Jilin Province China.
Ecology and evolution
|June 16, 2023
概括
长白山脉的两个常见的Hypericum物种显示出不同的基因表达模式. MADS-box基因分析揭示了适应环境变化和进化分歧,影响了开花时间.
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:
- 长白山脉拥有多种多样的Hypericum物种,包括*Hypericum attenuatum*Choisy和*Hypericum longistylum*Oliv.
- 了解遗传分歧对于植物适应和进化研究至关重要.
研究的目的:
- 为了研究*H. attenuatum*和*H. longistylum*之间的转录组差异.
- 分析这些两种物种的MADS盒基因演变,分歧时间和表达模式.
主要方法:
- 对 *H. attenuatum* 和 *H. longistylum* 的转录组分析.
- 对MADS盒家族基因的查和分析.
- 差异时间估计和进化选择表达分析.
主要成果:
- 鉴定了9287个不同表达的基因,其中6044个是两种物种共享的.
- MADS-box基因分析表明,它们适应环境条件和进化选择.
- 与环境变化和基因组复制事件相关的分歧时间.
- 在 *H. attenuatum* 的晚期开花与更高的SVP和AGL12表达和更低的FUL表达有关.
结论:
- 转录组数据揭示了两个Hypericum物种之间显著的遗传差异和共同的祖先.
- 这些物种的MADS盒基因进化是由环境适应和基因组事件所塑造的.
- 特定的MADS-box基因 (SVP,AGL12,FUL) 在调节开花时间差异方面发挥作用.
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