外来入侵植物对环境梯度和天敌逃逸的适应进化

被引:31
作者
冯玉龙 [1 ]
廖志勇 [1 ,2 ]
张茹 [1 ,2 ]
郑玉龙 [1 ,2 ]
李扬苹 [1 ]
类延宝 [1 ]
机构
[1] 中国科学院热带森林生态学重点实验室,西双版纳热带植物园
[2] 中国科学院研究生院
基金
国家自然科学基金重点项目;
关键词
生物入侵; 进化; 局域适应; 遗传多样性; 修正的EICA假说; 氮分配的进化假说;
D O I
暂无
中图分类号
Q948 [植物生态学和植物地理学];
学科分类号
071012 ; 0713 ;
摘要
进化假说认为,在入侵地外来种能发生遗传变化,以适应新的环境,最终成功定殖和扩散。种内或种间杂交、遗传漂变、新环境带来的新的选择压力等是促使外来种发生进化的重要原因。在入侵地,响应来自非生物和生物因素的选择压力是外来种发生适应进化的主要原因。本文主要介绍外来植物如何通过进化适应入侵地的纬度、海拔等非生物环境和天敌逃逸等生物环境。关于外来入侵植物对纬度和海拔等环境梯度的适应进化,本文在强调表型进化研究应与分子标记研究相结合的基础上,介绍了一些同质种植园实验和交互移植实验。关于外来入侵植物对天敌逃逸的适应进化,本文主要介绍增强竞争能力的进化假说和修正的增强竞争能力的进化假说,及其在理论上和验证方法上存在的问题。最后,本文介绍了氮分配的进化假说,该假说认为天敌逃逸可使外来入侵植物降低叶氮向防御的分配,同时增加氮向光合的分配。
引用
收藏
页码:340 / 352
页数:13
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