摘要
睡莲类植物是目前植物分子系统学与进化研究的一个重要类群 .核基因组的ITS区是核核糖体 (nrDNA)转录单位的一部分 .测定和分析了 5个属的 7种睡莲类植物的核核糖体ITS序列 ,并与GenBank中提取的相关序列进行了组合分析 ,初步获得了睡莲类植物的 2个ITS系统树 ,结果也支持现有分子系统学研究中有关金鱼藻处于较原始位置的观点 .
Water lily plants are key group on study of the flowering plant phylogeny. The internal transcribed spacers (ITS) and the 5.8S coding region of nuclear ribosomal DNA (nrDNA) of seven taxa were sequenced to study molecular phylogeny and evolution of Nymphaeales sensu lato . The ITS phylogenetic trees were constructed based on the sequences and a combined data set with sequences from GenBank. The results obtained from ITS sequences also supported that the genus Ceratophyllum could be considered the ancestral group in the order, as the results of most molecular systematic studies.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
2003年第1期97-101,共5页
Earth Science-Journal of China University of Geosciences
基金
湖北省地球表层系统开放实验室资助项目
