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2 边缘种群交配系统变异

Table 2 Contrasts in mating systems between central and marginal populations of a range of plant species

分类群 Taxonomic group 中心/亚中心种群 Central/subcentral population 边缘种群 Marginal population 参考文献 Reference Leavenworthia alabamica 自交不亲和 Self-incompatibility 自交亲和/自我受精 Self-compatible/self-fertilization Busch, 2005 Juncus atratus 低近交率 Low inbreeding rates 高近交率, 异交率为5.6% High inbreeding, outcrossing rate = 5.6% Michalski & Durka, 2007 Camissoniopsis cheiranthifolia 自交不亲和 Self-incompatibility 自交亲和 Self-compatible Dart et al., 2012 Vriesea gigantean 混合交配系统, 低自交率 Mixed mating system, low selfing rates 混合交配系统, 高自交率 Mixed mating system, high selfing rates Matos et al., 2015 Echium plantagineum; Centaurea solstitialis 本地种群自交不亲和 Self-incompatible in native populations 入侵种自交亲和 Self-compatible in invasive populations Petanidou et al., 2011 冷杉属, 云杉属, 松属 Abies, Picea and Pinus genera 混合交配系统, 低自交率(高种群密度) Mixed mating system, low selfing rates (high population density) 混合交配系统, 高自交率(低种群密度) Mixed mating system, high selfing rates (low population density) Restoux et al., 2008 Arabidopsis lyrata 异交 Outcrossing 自交、混合交配系统 Selfing/mixed-mating Griffin & Willi, 2014