Effect of ITS Pseudogene on the Phylogenetic Study of Quercus (Fagaceae) and Its Revelation on the Plant Molecular Phylogenetics
Acta Botanica Yunnanica(2006)
Abstract
Sequences of ITS in nrDNA is one of the widely used markers in angiosperm systematics.Many early reports of ITS region (ITS 1,5.8S and ITS 2) variation in flowering plants indicated that nrDNA arrays within individuals are homogeneous.However,recent studies have discovered that individuals often contain potentially non-functional nrDNA copies (pseudogenes).These findings suggest that complete concerted evolution should not be assumed when embarking on phylogenetic studies using nrDNA sequences.ITS pseudogene has been detected in the genus of Quercus L.and misled the phylogenetic reconstruction,which made this genus frequently focused in the related studies.The authors take this genus as an example to discuss the influence of the pseudogene on the phylogenetic study,conclude that combining application of molecular evolution and classic taxonomy knowledge in plant systematics study may lead to more convincible results.
MoreTranslated text
Key words
quercus,fagaceae,phylogenetics,phylogenetic study,plant
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined