摘要
轮虫是浮游动物中的重要类群,开展轮虫种群遗传结构及系统地理格局研究对更好地理解种群分化、物种形成、生态适应和历史气候变化等进程具有重要意义。关于轮虫种群的系统地理格局主要包括两种不同的观点:一种观点认为种群的快速增长及其建群效应使得轮虫种群表现出高度的遗传分化和显著的系统地理格局;另一种观点认为,由于浮游动物具有高度的拓殖能力和局域性适应,轮虫种群间不具有系统地理格局。轮虫的种群遗传结构存在着季节变化,这可能会干扰我们对浮游动物系统地理格局的正确认识。本文简述了轮虫种群遗传结构及系统地理格局的研究现状,并对轮虫种群遗传结构及系统地理格局研究进行了展望。
Rotifer is a major group of zooplankton; studies on its phylogeographical pattern and population genetic structure can make substantial contributions to understanding the processes such as population differentiation, speciation, ecological adaptation and historical climate change. Up to now, two opposite results exist in the phylogeographical pattern of rotifer popula- tions. Firstly, high levels of population genetic subdivision and pronounced phylogeographical structure in rotifers are revealed due to the rapid population growth and founding events. In the second contrasting scenario, due to high dispersal capacity and regional adaptation, no phylogeo- graphical structure is found. Seasonal variation in genetic structure may also bias our understand- ing of the observed phylogeographical pattern of rotifer populations. In this paper, we summarized the research progress on the phylogeographical pattern and population genetic structure of rotifer and gave a perspective on this field.
出处
《生态学杂志》
CAS
CSCD
北大核心
2015年第7期2048-2057,共10页
Chinese Journal of Ecology
基金
国家自然科学基金项目(31200324)
安徽省自然科学基金项目(1208085QC47)
安徽省高校省级自然科学研究重点项目(KJ2012A127)
"重要生物资源保护和利用研究"安徽省重点实验室专项基金资助
关键词
轮虫
遗传结构
系统地理学
时空格局
rotifer
genetic structure
phylogeography
spatio-temporal pattern
