多种生态利基建模揭示了东亚青 (Taxus) 的利基保守和分歧
Chuncheng Wang1,2,3, Minqiu Wang1,2,3, Shanshan Zhu1
1College of Landscape and Architecture, Central South University of Forestry and Technology, Changsha 410004, China.
Plants (Basel, Switzerland)
|April 12, 2025
概括
在Taxus体育种中的生态利基进化被使用利基模型研究. 关键的环境因素推动了分歧,南部的克莱德适应,而其他地区则表现出基因基因利基的保守主义,特别是T. 林人 (英语:Qinlingensis) 是一种植物.
科学领域:
- 生态生态学 生态生态学
- 进化生物学 进化生物学
- 生物地理学是生物地理学.
背景情况:
- 了解生态利基进化对于生物地理和生物多样性保护至关重要.
- 塔克斯 (Taxus) 是一个三级时期的遗体体育种,在东亚多样化的气候中有11个血统,但它的利基动力学和多样化驱动因素尚不清楚.
研究的目的:
- 研究11个Taxus血统中的生态利基进化的时空动态.
- 确定生态和地理因素在Taxus血统多样化中的作用.
- 为Taxus物种的保护策略提供信息.
主要方法:
- 使用的发生记录,环境数据和族系学.
- 采用集体生态利基模型 (eENMs),环境原则组件分析 (PCA-env) 和生态气候建模.
- 根据贝叶斯树和分布,将血统分为四个分支 (北方,中部,西部,南部).
主要成果:
- 自中世纪晚期以来,西藏高原的源活动和气候变化很可能推动了Taxus的多样化.
- 极端温度,气候变化,光线和高度是利基差异的关键驱动因素.
- 观察到利基保护主义和分歧;南方类表现出适应性热量/湿度耐受性,而中部/西部类表现出显著的基因基因利基保护主义 (PNC).
结论:
- 泰克索斯的利基进化涉及早期的保守主义,随后是最近的分歧,受地质和气候事件的影响.
- 遗传学利基保守主义 (PNC) 在分类之间有所不同,与T. qinlingensis显示了最高的水平.
- 优先保护T. 保护T. 在易受气候变化影响的退化山脉中,如林,大巴和台杭山脉.
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