文献类型：期刊文献

中文题名：美洲黑杨×青杨F_2代基本材性性状遗传变异研究

英文题名：Study on Genetic Variation of Wood Properties in Three-generation Pedigree of Populus deltoids Marsh.×P.cathayana Rehd.

作者：黄秦军[1] 苏晓华[1]

第一作者：黄秦军

机构：[1]中国林业科学研究院林业研究所

年份：2003

卷号：16

期号：2

起止页码：141-145

中文期刊名：林业科学研究

外文期刊名：Forest Research

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金：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

语种：中文

中文关键词：美洲黑杨;青杨;三代谱系;木材材性;遗传变异

外文关键词：Populus deltoids; P.cathayana;three-generation pedigree of poplar;wood properties; genetic variation

分类号：S792.113;S781.3

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F2代中继续存在;纤维宽与微纤丝角表现出较为典型的微效多基因控制的数量性状遗传特点;纤维宽与基本密度、纤维宽与纤维长宽比均为显著负相关;基本密度与纤维长和微纤丝角均为弱负相关,与纤维长宽比为弱正相关;纤维长和纤维宽、纤维长和纤维长宽比显著相关;而微纤丝角与纤维长、纤维宽和纤维长宽比之间不相关。
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 F2 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.