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利用10年生长白落叶松全分布区种源试验的生长资料,从生态遗传学的观点出发,采用典型相关分析等方法,揭示了长白落叶松生长性状的地理变异规律与模式:(1)海拔垂直梯度渐变为主、纬向渐变为辅的连续型变异是长白落叶松生长性状的基本变异模式;(2)低海拔、低等效纬度的小北湖种源是长白落叶松优良基因资源中心,其遗传特点是生长快、稳定性好、材性优良;(3)水热因子的综合选择作用是长白落叶松地理变异的重要因素,其中温度是主导因子;(4)在地理种群性状的遗传分化中,生长性状的分化最为明显,可以作为种源区区划的主要性状;(5)从长白落叶松分布的低等效纬度地区向高等效纬度地区调种,可望获得较大的遗传增益。
Using the growth data of provenances of 10-year-old Larix olgensis population distribution, from the point of view of ecological genetics, the canonical correlation analysis was used to reveal the rules and patterns of the geographical variation of Larix olgensis growth traits: (1) (2) The low-latitude and low-latitude XiaoBeihu provenances are the excellent gene resource centers of Larix olgensis, which are the major variation patterns of the growth traits of Larix olgensis. (2) (3) The comprehensive selection of hydrothermal factors is an important factor for the geographical variation of Larix olgensis, of which temperature is the dominant factor; (4) the genetic differentiation of geographic population traits (5) Larger genetic gain could be expected from low equivalent latitude region of Larch distribution to high equivalent latitude region.