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Int. J. Mol. Sci. 2017, 18(9), 1839; doi:10.3390/ijms18091839

Molecular Structure and Phylogenetic Analyses of Complete Chloroplast Genomes of Two Aristolochia Medicinal Species

1
Key Lab of Chinese Medicine Resources Conservation, State Administration of Traditional Chinese Medicine of the People’s Republic of China, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China
2
Institute of Chinese Materia Medica, China Academy of Chinese Medicinal Sciences, Beijing 100700, China
3
Department of Pharmacy, Guangxi Traditional Chinese Medicine University, Nanning 530200, China
*
Author to whom correspondence should be addressed.
Received: 27 July 2017 / Revised: 15 August 2017 / Accepted: 20 August 2017 / Published: 24 August 2017
(This article belongs to the Special Issue Chloroplast)
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Abstract

The family Aristolochiaceae, comprising about 600 species of eight genera, is a unique plant family containing aristolochic acids (AAs). The complete chloroplast genome sequences of Aristolochia debilis and Aristolochia contorta are reported here. The results show that the complete chloroplast genomes of A. debilis and A. contorta comprise circular 159,793 and 160,576 bp-long molecules, respectively and have typical quadripartite structures. The GC contents of both species were 38.3% each. A total of 131 genes were identified in each genome including 85 protein-coding genes, 37 tRNA genes, eight rRNA genes and one pseudogene (ycf1). The simple-sequence repeat sequences mainly comprise A/T mononucletide repeats. Phylogenetic analyses using maximum parsimony (MP) revealed that A. debilis and A. contorta had a close phylogenetic relationship with species of the family Piperaceae, as well as Laurales and Magnoliales. The data obtained in this study will be beneficial for further investigations on A. debilis and A. contorta from the aspect of evolution, and chloroplast genetic engineering. View Full-Text
Keywords: Aristolochia debilis; Aristolochia contorta; chloroplast genome; molecular structure; phylogenetic analyses Aristolochia debilis; Aristolochia contorta; chloroplast genome; molecular structure; phylogenetic analyses
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Zhou, J.; Chen, X.; Cui, Y.; Sun, W.; Li, Y.; Wang, Y.; Song, J.; Yao, H. Molecular Structure and Phylogenetic Analyses of Complete Chloroplast Genomes of Two Aristolochia Medicinal Species. Int. J. Mol. Sci. 2017, 18, 1839.

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