遗传多样性的一般趋势 异种植物入侵的变化
Han Jiang1,2, Yi Zhang1, Wenqin Tu3
1China-Croatia 'Belt and Road' Joint Laboratory on Biodiversity and Ecosystem Services, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
Plants (Basel, Switzerland)
|July 29, 2023
概括
这次元分析发现,入侵性外来植物在本地范围之外通常表现出减少的遗传多样性,但这种变化并不显著. 因此,遗传多样性可能无法可靠地预测入侵成功.
科学领域:
- 生态生态学 生态生态学
- 遗传学 是一个遗传学.
- 保护生物学 保护生物学
背景情况:
- 遗传多样性影响了外来入侵物种 (IAS) 的建立和传播.
- 以前的研究比较了IAS原生与非原生种群的遗传多样性,但得出了不一致的结论.
- 了解这些模式对于预测入侵动态和评估生态风险至关重要.
研究的目的:
- 在入侵过程中对入侵植物的遗传多样性进行元分析.
- 研究外来入侵物种遗传多样性变化的一般趋势.
- 确定遗传多样性与入侵成功之间的相关性.
主要方法:
- 对19种入侵植物物种进行了元分析,合成了26项同行评审研究的数据.
- 这些研究是通过对ISI Web of Science数据库 (2000年1月至2022年5月) 的系统文献搜索来确定的.
- 来自3557个出版物的数据被选,以选择相关的研究.
主要成果:
- 与入侵性外来植物的本地种群相比,在非本地种群中观察到遗传多样性减少的一般趋势.
- 在分析的研究中,这种遗传多样性的减少在统计学上并不显著.
- 遗传多样性变化对入侵结果没有显著影响.
结论:
- 遗传多样性可能不是决定外来入侵植物成功的重要因素.
- 这些发现表明,仅仅是遗传多样性可能不是对入侵风险评估或动态预测的可靠指标.
- 可能需要进一步的研究来探索影响入侵成功的其他因素.
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