| 美洲黑杨×青杨F2代基本材性性状遗传变异研究 |
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| 引用本文： | 黄秦军,苏晓华. 美洲黑杨×青杨F2代基本材性性状遗传变异研究[J]. 林业科学研究, 2003, 16(2): 141-145 |
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| 作者姓名： | 黄秦军 苏晓华 |
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| 作者单位： | 黄秦军（中国林业科学研究院林业研究所,北京,100091）;苏晓华（中国林业科学研究院林业研究所,北京,100091） |
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| 基金项目： | 国家"973"重大基础研究课题"树木重要木材性状基因的定位及克隆" |
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| 摘 要： | 利用美洲黑杨×青杨杂交三代谱系探索了木材密度、纤维长、纤维宽、纤维长宽比和微纤丝角等性状的遗传变异规律.结果表明基本密度与纤维长受主基因的控制,表现为"质量-数量性状",其杂种优势明显且在F
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| 关 键 词： | 美洲黑杨 青杨 三代谱系 木材材性 遗传变异 |
| 文章编号： | 1001-1498(2003)02-0141-05 |
| 收稿时间： | 2002-04-23 |
| 修稿时间： | 2002-04-23 |
Study on Genetic Variation of Wood Properties in Three-generation Pedigree of Populus deltoids Marsh.×P.cathayana Rehd. |
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| HUANG Qin-jun and SU Xiao-hua. Study on Genetic Variation of Wood Properties in Three-generation Pedigree of Populus deltoids Marsh.×P.cathayana Rehd.[J]. Forest Research, 2003, 16(2): 141-145 |
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| Authors: | HUANG Qin-jun and SU Xiao-hua |
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| Affiliation: | Research Institute of Forestry, CAF, Beijing100091, China;Research Institute of Forestry, CAF, Beijing100091, China |
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| Abstract: | A Three generation of Populus deltoids ×P.cathayana was used to study the genetic variation of basic wood properties and the results showed that:wood specific gravity and fiber length have major gene effects of quantitative traits and the heterosis of those traits exist in F2 population; the other way round,fiber width and microfibril angle have polygene effects of quantitative traits.High negative correlations were found between fiber width and specific gravity,fiber width and ratio of length to width. High positive correlations wrer found between fiber length and fiber width,fiber length and width and ratio of length to width.And correlations were not found between fiber length and microfibril angle,fiber width and ratio of length to width.This research can provide reference for pulp wood breeding and selecting of poplars. |
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| Keywords: | Populus deltoids P.cathayana three-generation pedigree of poplar wood properties genetic variation |
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