Biswal Devendra, Konhar Ruchishree, Debnath Manish, Parameswaran Sriram, Sundar Durai, Tandon Pramod
Bioinformatics Centre, North-Eastern Hill University, Shillong, Meghalaya, India.
Genotypic Technology Pvt Ltd, Technology, Bengaluru, Karnataka, India.
PLoS Curr. 2017 May 19;9:ecurrents.tol.cf1709613759c2223eb582c0fa694cc7. doi: 10.1371/currents.tol.cf1709613759c2223eb582c0fa694cc7.
Orchidaceae constitutes one of the largest families of angiosperms. Owing to the significance of orchids in plant biology, market needs and current sustainable technology levels, basic research on the biology of orchids and their applications in the orchid industry is increasing. Although chloroplast (cp) genomes continue to be evolutionarily informative, there is very limited information available on orchid chloroplast genomes in public repositories. Here, we report the complete cp genome sequence of Dendrobium nobile from Northeast India (Orchidaceae, Asparagales), bearing the GenBank accession number KX377961, which will provide valuable information for future research on orchid genomics and evolution, as well as the medicinal value of orchids. Phylogenetic analyses using Bayesian methods recovered a monophyletic grouping of all Dendrobium species (D. nobile, D. huoshanense, D. officinale, D. pendulum, D. strongylanthum and D. chrysotoxum). The relationships recovered among the representative orchid species from the four subfamilies, i.e., Cypripedioideae, Epidendroideae, Orchidoideae and Vanilloideae, were consistent within the family Orchidaceae.
兰科是被子植物中最大的科之一。由于兰花在植物生物学、市场需求和当前可持续技术水平方面的重要性，对兰花生物学及其在兰花产业中的应用的基础研究正在增加。尽管叶绿体（cp）基因组在进化上仍然具有信息价值，但公共数据库中关于兰花叶绿体基因组的信息非常有限。在这里，我们报道了来自印度东北部的金钗石斛（兰科，天门冬目）的完整cp基因组序列，其GenBank登录号为KX377961，这将为未来兰花基因组学和进化研究以及兰花的药用价值提供有价值的信息。使用贝叶斯方法进行的系统发育分析恢复了所有石斛属物种（金钗石斛、霍山石斛、铁皮石斛、鼓槌石斛、细叶石斛和金耳石斛）的单系类群。从四个亚科（即杓兰亚科、树兰亚科、兰亚科和香荚兰亚科）中代表性兰花物种之间恢复的关系在兰科内是一致的。
