北京林业大学学报2017，Vol.39Issue(2)：24-29,6.DOI:10.13332/j.1000--1522.20160127
由8个DNA片段推断云南金钱槭的系统位置
Systematic position of Dipteronia dyerana inferred from eight gene regions
摘要
Abstract
Dipteronia dyerana is one of the endangered species of genus Dipteronia, and its phylogenetic placement is still in dispute thus far. To access the systematic placement of D. dyerana, the sequences of ITS, CHS, psbM-trnD spacer, rbcL, trnD-trnT spacer, rpl16 intron, trnL-trnF spacer and psbA-trnH spacer regions from the target species were analyzed using parsimony and Bayesian inference methods. The results showed that: 1 ) The Dipteronia was a monophyletic lineage in six chloroplast DNA genes combined. 2) In CHS, Dipteronia was a monophyletic lineage, but had a fuzzy relationship with Acer spp. 3 ) D. dyerana nested in Acer and Dipteronia was a paraphyletic lineage in ITS. These results indicated that different data sets had a conflict result, it may be due to different rates of each gene fragment evolution. Less informative sites in CHS and the multicopy in ITS may be the reason why they have different result with six chloroplast DNA genes combined. Integrated research results and morphological evidence, systematic placement of D. dyerana should belong to Dipteronia. Moreover, much more genes should be chosen when study on systematic placement of D. dyerana.关键词
系统发育位置/物种界定/核苷酸序列/云南金钱槭Key words
phylogenetic placement/species delimitation/nucleotide sequence/Dipteronia dyerana分类
农业科技引用本文复制引用
高健,杜芳,李俊清..由8个DNA片段推断云南金钱槭的系统位置[J].北京林业大学学报,2017,39(2):24-29,6.基金项目
国家重点研发计划项目(2016YFC0503106). （2016YFC0503106）
