文献类型：期刊文献

中文题名：树木木质素含量的遗传变异研究进展

英文题名：Advance in Studies on Genetic Variation of Lignin Content in Tree Species

作者：胡新生[1] 韩一凡[1] 邱德有[1]

第一作者：胡新生

机构：[1]中国林业科学研究院林业研究所

年份：1999

卷号：12

期号：6

起止页码：563-571

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1996】；CSCD:【CSCD2011_2012】；

基金：教育部留学回国人员科研启动基金

语种：中文

中文关键词：树木;木质素含量;遗传变异;基因工程

外文关键词：trees; lignin content; genetic variation; genetic engineering

分类号：S781.41;S718.46

摘要：针对木质素含量这一数量性状的遗传变异规律进行了综合评述。木质素含量在种、群体、个体等不同层次上均表现出复杂的变异模式，环境因素有着不同程度的影响。木质素的合成途径有可能存在多条途径的替换或切换，然而利用基因工程技术对某些酶如ＰＡＬ、４ＣＬ、Ｃ４Ｈ和ＣＣＲ等酶改造时，在一定的程度上可以降低木质素含量，而对其它酶如ＯＭＴ、ＣＡＤ和Ｆ５Ｈ 等酶改造时，并不降低木质素含量，有些酶基因的反义转化可以改造木质素的组成和化学性质，但这些研究仍需要田间的稳定评估试验加以肯定。鉴于此，为进一步认识木质素含量遗传变异规律，除了进行多酶转基因研究外，作者认为采用谱系明确的材料进行控制木质素含量基因定位和分离研究，并从分子水平上探讨环境对木质素含量变异的机理具有重要的意义。
Genetic variation of the quantitative trait lignin content was remarked in detail.According to many reports,it can be seen that lignin content possesses very complicate patterns of variation at levels of species,population and individual.Impacts of environmental factors on variation of lignin content can not be ignored.The lignin biosynthetic process has not been elucidated yet,and there are probably several alternative pathways.However,application of antisense transformation of genes of some enzymes such as PAL,C4H,4CL and CCR,can reduce level of lignin content to a certain extent; while transformation of other genes of enzymes like OMT,CAD and F5H has no effect on lignin content but lignin composition.These results remain to be confirmed in the field performance.Based on these progresses,study on multiple transformation of genes of some enzymes is required so as to detect the roles of some enzymes in lignin content and metabolic plasticity.In order to further study genetic variation of lignin content,it is necessary to conduct a study on genetic mapping,location determination and isolation of genes responsible for variation of lignin content,using pedigree materials planted under different environemnts.This may also help us to elucidate the impacts of environmental factors on variation of lignin content at molecular level.