摘要
通过PCR扩增和测序,得到了中国霸王属种类的rbc L和trn L-F基因片段序列数据,同时在网络数据库获得了南非、纳米比亚、澳大利亚和中亚地区的霸王属种类的rbc L和trn L-F片段,构建系统发育树,并且对霸王属系统发育信号和31个形态性状进行分析。结果显示:1中国霸王属种类聚为一大类,与南非和纳米比亚霸王属形成姐妹分支;2霸王属植物的生命周期、叶排列、叶形状及株高等8个性状具有明显的系统发育信号,其次,中国霸王属植物的萼片长度、萼片宽度、果实长度、茎性质和叶片结构等10个性状与国外霸王属有显著的差异,这与中国霸王属在该属系统发育树中形成单源分支相吻合。
The plastid coding rbc L and non-coding trn L-F regions of 14 Chinese Zygophyllum species were sequenced and used to evaluate the phylogenetic relationships within the Chinese representatives of the genus. Published sequences of the same gene regions of Australian and African Zygophyllum species were included to assess the relationships of the species from these regions with the species in China. And 31 morphological characters of Zygophyllum L. were analyzed. The results are as follows： 1 All Zygophyllum species in China were clustered into one major clade and constituted the sister clades with the species in South Africa; 2 Significant phylogenetic signals were observed in the life cycle,leaves arrangement,leaf shape and other 5 morphological characters. Secondly,the sepal length,sepal width,pollen types,stem nature,leaf structure and other 5 morphological characters of Zygophyllum species in China were significantly different from those of the foreign species,which was consistent with the phylogenetic status of the species in China.
出处
《干旱区研究》
CSCD
北大核心
2016年第6期1226-1234,共9页
Arid Zone Research
基金
基金项目:新疆维吾尔自治区青年科技创新人才培养工程(2014731023)
