文献类型：期刊文献

中文题名：美洲黑杨基因资源收存及其遗传评价的研究

英文题名：STUDY ON COLLECTION, PRESERVATION AND GENETIC VALUATION OF GENETIC RESOURCES OF POPULUS DELTOIDES BARTR.

作者：张绮纹[1] 苏晓华[1] 李金花[1] 陈一山[2] 解荷峰[2]

第一作者：张绮纹

机构：[1]中国林业科学研究院林业研究所;[2]山东省林业厅林木种苗站

年份：1999

卷号：35

期号：2

起止页码：31-37

中文期刊名：林业科学

外文期刊名：SCIENTIA SILVAE SINICAE

收录：CSTPCD;;Scopus;北大核心:【北大核心1996】；CSCD:【CSCD2011_2012】；

基金："八五"国家攻关专题

语种：中文

中文关键词：美洲黑杨;基因库;主要性状;遗传分析

外文关键词：Populus deltoides Bartr., Gene Pool, Main characters, Genetic analysis and evaluation

分类号：S792.110.1

摘要：从１７个国家引进３３１个黑杨派无性系（其中５２个美洲黑杨无性系），在山东省长清县营建我国第一个黑杨派无性系基因库。连续１０年对基因库内美洲黑杨无性系进行了多性状系统研究，结果表明各无性系间在物候期、生长、生根、抗寒和抗病虫等方面均存在着显著的差异，遗传变异丰富；系间的主要性状与无性系起源纬度及各性状间存在一定相关性。主要材料性状变异的研究结果表明，３８个８年生美洲黑杨无性系在木材基本密度、纤维长度无性系间变异达到极显著水平；木材密度和纤维长度与树高和胸径呈一定相关性；木材密度和纤维长度这两个性状在遗传上相互独立，受不同遗传机制控制。利用分子遗传标记ＲＡＰＤ技术研究库内美洲黑杨无性系ＤＮＡ多态性，结果表明本库美洲黑杨ＤＮＡ多态率为８６％，再次证明本库美洲黑杨遗传多样性高，可为我国杨树改良提供丰富的育种材料。
The genetic resource of Populus deltoides Bartr., a fast growing species of rich genetic variation, is poor in China and need to be introduced from foreign country. In 1980's 331 clones of Section Aigeiros consisting of 52 clones of P.deltoides, 56 clones of P.×euramericana and 6 clones of P.nigra were introduced from 17 foreign countries. In 1984 the first gene pool of Section Aigeiros in China was established in Changqing County, Shandong Province. The several characters in clones of Section Aigeiros had been measured and studied for ten years. The results showed that there were significant in phenology, growth, rooting, cold resistance, disease and pest resistance between different colnes, and the genetic variation was rich. The rules were as follows:(1)Growth showed significant negative correlation to the original latitude.(2)Cold resistance showed significant positive correlation to the original latitude.(3)Rooting ability tended to add little with the height of latitude.(4)Disease resistance showed slight significant positive correlation to the original latitude, as well as negative correlation to the original longitude.(5)Change of season showed significant correlation to growth of standing stock.(6)Cold resistance showed significant positive correlation to growth.(7)Disease resistance shows positive correlation to cold resistance.Basic wood properties such as wood basis density, fiber length, tree height, and DBH were also measued and analyzed. The results showed that a significant variance was observed in 4 traits among 46 clones and there was slight negative genetic correlation between the wood basic density and tree growth rate, as well as positive genetic correlation between the fiber length and tree growth rate. RAPD analysis was applied to the analysis of DNA polymorphism and genetic differentiation among the clones. The percent of polymorphism was up to 80%, which showed that genetic diversity of this gene pool was significant. The gene pool will provide rich breeding material for improvement of poplar in China.