Phylogeography of Ulmus elongata based on Fourier transform-infrared spectroscopy (FTIR), thermal gravimetric and differential thermal analyses
Phylogeography of Ulmus elongata based on Fourier transform-infrared spectroscopy (FTIR), thermal gravimetric and differential thermal analyses
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基于傅里叶变换红外光谱 (FTIR)、热重和差热分析的长榆树系统发育地理学
DOI：
10.1016/j.bse.2011.10.018
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发表时间：
2012-02-01
影响因子：
1.6
通讯作者：
Liu, Peng
中科院分区：
文献类型：
--
作者：
Gao, Jian-Guo;Wu, Yu-Huan;Liu, Peng
采用傅里叶变换红外光谱（FTIR）、热重分析和差热技术研究了不同地理区域的长榆树之间的系统发育关系。我们发现来自七个分布区域的长形 U. elongata 样品的 FTIR 光谱红外吸光度值存在显着差异。我们通过 16 个特征吸光度峰的差异定义了 U. elongata 的四个遗传群体（进化枝）。树木（按地区命名）排序如下：分支I为安徽歙县（AHSX）和浙江临安（ZJLA），分支II为开化（ZJKH）、浙江遂昌（ZJSC）和江西武宁（JXWN）；浙江松阳（ZJSY）属于第三支，福建南平（FJNP）属于第四支。热重和差热分析表明，长叶苋菜叶片存在两个明显的放热热解阶段，并在550℃附近达到最大质量损失。350~550℃之间的TG和DT曲线也被用来阐明长苋菜样品之间的系统发育关系。 (C) 2011 Elsevier Ltd. 保留所有权利。
The phylogenetic relationship between Ulmus elongata trees growing in different geographic regions was studied by Fourier transform-infrared spectroscopy (FTIR), thermogravimetric analysis, and differential thermal technology. We found that the infrared absorbance values of FTIR spectra differed significantly between U. elongata samples from seven distributed regions. We defined four genetic groups (clades) of U. elongata by differences in 16 characteristic absorbance peaks. The trees (named by regions) were sorted as follows: Shexian Anhui (AHSX) and Lin'an Zhejiang (ZJLA) in clade I, Kaihua (ZJKH), Suichang Zhejiang (ZJSC), and Wuning Jiangxi (JXWN) in (clade II); Songyang Zhejiang (ZJSY) in clade III, and Nanping Fujian (FJNP) clade IV. Thermogravimetric and differential thermal analysis revealed that the leaves of U. elongata had two obvious exothermic pyrolysis stages, and reached maximum mass loss near 550 degrees C. TG and DT curves between 350 and 550 degrees C were also used to elucidate the phylogenic relationship between U. elongata samples. (C) 2011 Elsevier Ltd. All rights reserved.