在Pteris cretica L. (Pteridaceae) 地理种群中对遗传,形态和解剖多样性的多重计算空间分析
Maedeh Alaeifar1, Masoud Sheidai2, Fahimeh Koohdar1
1Department of Plant Sciences and Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran.
BMC plant biology
|April 28, 2025
概括
景观遗传学揭示了空间和环境因素塑造了车 (Pteris cretica) 种群. 这项研究确定了关键的遗传位置和气候对保护的影响,这对物种的长期生存至关重要.
科学领域:
- 人口遗传学 人口遗传学
- 景观遗传学 景观遗传学
- 植物科学 植物科学
- 保护生物学 保护生物学
背景情况:
- 车,Pteris cretica,已被认为具有药用,但其景观遗传学仍未得到充分研究.
- 了解对遗传结构的空间和环境影响对于有效保护P. cretica.至关重要.
研究的目的:
- 研究空间和环境变量对P. cretica种群的遗传变异性和形态差异化的影响.
- 确定影响种群形成和物种分布的地理和气候因素.
- 探索遗传因素,气候,形态和P. cretica. 解剖学之间的相互作用.
主要方法:
- 使用多变量统计方法,对来自伊朗北部13个种群的130种P. cretica植物进行分析.
- 与地理变量和形态特征相关的遗传位置 (SCoT) 的识别.
- 冗余分析 (RDA),法典对应分析 (CCA) 和混合数据的因子分析 (FAMD) 的应用,以确定适应气候的位置.
- 空间主要组件分析 (sPCA) 用于空间结构和部分最小平方结构方程建模 (PLS-SEM) 用于复杂的相互作用.
主要成果:
- 在遗传多样性,差异化 (Fst) 和环境变量 (经度,度,高度) 之间发现了显著的关联.
- 在RDA,CCA和FAMD分析中,发现了具有适应气候潜力的遗传基因位点.
- sPCA揭示了P. cretica种群中显著的空间结构和遗传线形成.
- PLS-SEM证明了遗传,气候,耐药性,形态和解剖因素之间的复杂相互关系.
结论:
- 空间和环境因素在塑造P. cretica种群的遗传结构方面发挥着至关重要的作用.
- 该研究为制定有针对性的保护策略提供了必要的见解,以保护遗传多样性并增强适应环境变化的能力.
- 这些发现有助于P. cretica.的长期生存和可持续利用.
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