PANAX GINSENG NATURAL POPULATIONS:THEIR PAST,CURRENT STATE AND PERSPECTIVES
Mating system of Panax ginseng,genetics and ontogenetic structure of its natural populations of Primorye (Russia) were investigated.Genetic diversity was assessed using allozyme and the fluorescently based automated AFLP and SSR markers.Total genetic diversity at species level is low with allozyme assay (0.023),and high with AFLP (0.255) and SSR (0.259) methods.It is observed within populations according to allozyme (＞99%),AFLP (＞85%),and SSR (＞73%)assays.The indices of genetic variability distribution point out the re-colonization of the Sikhote-Alin by ginseng plants from southern refuges during the warming period in the early Holocene.The capability of ginseng plants to cross- and serf-pollination was shown and the assumption that P.ginseng is a facultative apomictic plant was confirmed.Reproductive system of ginseng possesses high plasticity and stability of fertilization process that help to survive in stress conditions.Disturbances caused by external or internal factors can be reduced due to morphogenetic potential of ginseng ovule or apomictic embryo development.Analysis of life stages structure of ginseng populations demonstrates that all of them are not full-constituent because some life stages are absent or occur rarely.In all three populations virgin and young generative individuals are predominant.It means that populations studied are viable and reintroduction of natural ginseng population is possible yet.
Panax ginseng natural population genetic diversity mating system embryology allozymes AFLP SSR
Yuri N ZHURAVLEV Olga G KOREN Galina D REUNOVA Tamara I MUZAROK Tatiyana Yu GORPENCHENKO Irina L KATS Yuliya A KHROLENKO
Institute of Biology and Soil Science,Russian Academy of Sciences,690022 Vladivostok,Russia
国际会议
2008 International Conference on Ginseng(2008国际人参会议)
长春
英文
32-45
2008-09-01（万方平台首次上网日期，不代表论文的发表时间）