植物边缘种群遗传多样性研究进展

张新新,王茜,胡颖,周玮,陈晓阳,胡新生

Advances in the study of population genetic diversity at plant species’ margins

ZHANG Xin-Xin,WANG Xi,HU Ying,ZHOU Wei,CHEN Xiao-Yang,HU Xin-Sheng

表3 边缘与中心种群遗传多样性比较及可能的生态或进化过程

Table 3 Comparison of genetic diversity between central and marginal populations of various plant species and the potential ecological or evolutionary processes responsible for the observed differences

植物种 Species 边缘种群与中心种群遗传多样性 Genetic diversity in marginal vs. central populations 生态或进化机制 Ecological or evolutionary mechanisms 参考文献 Reference 樱桃 Cerasus pseudocerasus 边缘种群低于中心种群 marginal populations < central populations 奠基者效应、瓶颈效应 Founder effect, bottleneck effect Chen et al., 2012 北沙柳 Salix psammophila 边缘种群低于中心种群 marginal populations < central populations 奠基者效应 Founder effect Hao et al., 2017 花苜蓿、青海苜蓿 Medicago ruthenica, M. archiducis-nicolai 边缘种群低于中心种群 marginal populations < central populations 奠基者效应 Founder effect Wu et al., 2016 毛红椿 Toona ciliata var. pubescens 边缘种群高于中心种群 marginal populations > central populations 生境破碎化 Habitat fragmentation Liu et al., 2013 红松 Pinus koraiensis 边缘种群低于中心种群 marginal populations < central populations 奠基者效应、瓶颈效应 Founder effect, bottleneck effect Feng et al., 2006 领春木 Euptelea pleiospermum 边缘种群低于中心种群 marginal populations < central populations 冰期后扩张、不对称基因流 Postglacial expansion and asymmetric gene flow Wei et al., 2016