摘要
树木生物学特性给树木的遗传学研究带来了很大困难 ,导致树木性状缺乏精细的遗传分析。后者成为林木常规育种的瓶颈。采用林木基因工程育种无疑更有目的性 ,并能显著缩短育种周期。为了实现树木的重要产品 -木材材性改良 ,木材形成即次生维管系统的发育分子生物学基础研究至关重要。只有在分析出木材形成过程的关键控制基因基础上 ,才能有目的地改变这些基因的表达 ,实现材性的改良。利用不同的研究系统 ,从基因组整体出发 ,采用基因芯片和蛋白质组学分析技术是当前研究的热点和主要途径。我国现已开展了这一方面的研究。
The biology features of trees limits the genetic analysis of their traits in great details, which was a bottleneck for the success in tree breeding. Application of the genetic engineering could target to the interest trait, thus dramatically shorten the time for completing a breeding cycle. To modify the wood quality, it is important to understand the molecular mechanisms of wood formation ( i.e ., development of the secondary vascular system). The control genes on wood formation are the targets for discovery and manipulation through genetic engineering. Under different experimental systems, considerable progress has been made using genomic approaches (proteomics and microarray analysis). Similar studies are also undertaken in China.
出处
《中国农业科技导报》
CAS
CSCD
2003年第2期14-17,共4页
Journal of Agricultural Science and Technology
基金
国家重点基础研究规划项目"树木育种的分子基础研究"( TG19990 160 0 2 )
