长白山不同海拔条件下红松的遗传分化

利用ISSR技术分析了长白山不同海拔高度红松的遗传分化，发现该地区红松的遗传多样性水平呈现随海拔升高而降低的趋势。长白山不同海拔高度红松的变异主要来自群体内；红松之间的遗传距离和垂直地理距离之间有明显的正相关性。遗传一致度表明，海拔高度对红松这一物种的隔离较小。推测：红松的垂直分布是由低海拔处向高海拔处扩散而形成的。

Genetic Differentiation of Pinus koraiensis under Different Altitude Conditions in Changbai Mountains

The genetic differentiation of Pinus koraiensis (Korean pine) in different altitude in Changbai Mountains was analyzed with the help of ISSR technique, and it was found that the level of genetic diversity of Korean pine reduces along with the altitude hoisting in Changbai Mountains. The variation of Korean pine is mainly in the population and there is a positive relativity between genetic distance and upright geographic distance among Korean pine in different altitudes. The genetic coherence shows that altitude has less insulation to the Korean pine species. Therefore it is deduced that the terrain formation of upright distribution for Korean pine is a result of diffusion from lower altitude to higher altitude in the course of enlarging its adaptability.