‘泗阳-2’的完整叶绿体基因组序列
The complete chloroplast genome sequence of 'Siyang-2'.
作者信息
Su Tao, Han Mei, Min Jie, Cao Dan, Pan Huixin, Liu Yuxin
机构信息
Co-Innovation Center for Sustainable Forestry in Southern China, College of Biology and the Environment, Nanjing Forestry University, Nanjing, China.
Key Laboratory of State Forestry Administration on Subtropical Forest Biodiversity Conservation, Nanjing Forestry University, Nanjing, China.
出版信息
Mitochondrial DNA B Resour. 2019 Dec 13;5(1):283-285. doi: 10.1080/23802359.2019.1700840.
'Siyang-2' is an improved variety of forest trees that have been identified recently. It shows superior growth performance compared to other local cultivars in the region of Yangtze-Huaihe in China. In this study, the whole chloroplast (cp) genome sequence of 'Siyang-2' was assembled and characterized by high-throughput sequencing data. The complete cp genome was 156,957 bp in length, containing a large single-copy region (LSC) of 85,096 bp, and a small single-copy region (SSC) of 16,563 bp, which were separated by a pair of 27,649 bp inverted repeat regions (IRs). The cp genome contained 131 genes, including 86 protein-coding genes, 37 tRNA genes, and 8 ribosomal RNA genes. Most of the gene species occur as a single copy, while 20 gene species occur in double copies. The overall GC content of 'Siyang-2' cp genome is 34.6%, while the corresponding values of the LSC, SSC, and IR regions are 34.5%, 30.6%, 41.9%, respectively. The complete cp genome provides valuable phylogenetic and cp genetic engineering studies of this important improved poplar species 'Siyang-2'.
“泗杨2号”是最近鉴定出的一个林木改良品种。在中国江淮地区，它与其他当地品种相比具有优异的生长性能。在本研究中，通过高通量测序数据组装并表征了“泗杨2号”的完整叶绿体（cp）基因组序列。完整的cp基因组长度为156,957 bp，包含一个85,096 bp的大单拷贝区域（LSC）和一个16,563 bp的小单拷贝区域（SSC），它们被一对27,649 bp的反向重复区域（IRs）隔开。cp基因组包含131个基因，包括86个蛋白质编码基因、37个tRNA基因和8个核糖体RNA基因。大多数基因种类以单拷贝形式存在，而20个基因种类以双拷贝形式存在。“泗杨2号”cp基因组的总体GC含量为34.6%，而LSC、SSC和IR区域的相应值分别为34.5%、30.6%、41.9%。完整的cp基因组为这种重要的改良杨树品种“泗杨2号”的系统发育和cp基因工程研究提供了有价值的信息。
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