Abstract

Knema conferta is a member of Myristicaceae. The K. conferta chloroplast genome is found to be 155,744 bp in length and has a base composition of A (30.02%), G (19.30%), C (19.90%), and T (30.78%). The genome contained two short inverted repeat (IRa and IRb) regions (48,052 bp) which were separated by a large single copy (LSC) region (86,926 bp) and a small single copy (SSC) region (20,770 bp). The genome encoded a total of 128 unigenes, including 89 protein-coding genes, 31 transfer RNA (tRNA) genes, and 8 ribosomal RNA (rRNA) genes. Further, complete chloroplast sequence of K. conferta was aligned together with 2 species of Knema and 5 basal angiosperms species which have reported the complete chloroplast sequence. This complete chloroplast genome will provide valuable information for the development of DNA markers for future species resource development and phylogenetic analysis of K. conferta.

摘要

Knema conferta是肉豆蔻科的成员。在K. conferta的叶绿体基因组被发现是在长度155744 bp和具有A（30.02％），G（19.30％），C（19.90％），和T（30.78％）的基体组合物。基因组包含两个短的反向重复序列（IRa和IRb）区域（48,052 bp），这些区域被一个大的单拷贝（LSC）区域（86,926 bp）和一个小的单拷贝（SSC）区域（20,770 bp）隔开。该基因组总共编码了128个单基因，包括89个蛋白质编码基因，31个转移RNA（tRNA）基因和8个核糖体RNA（rRNA）基因。此外，完整的K. conferta叶绿体序列与报道了完整叶绿体序列的2种克奈玛和5种基础被子植物一起排列。这个完整的叶绿体基因组将为DNA标记的发展提供有价值的信息，用于未来物种资源的开发和峰K的系统发育分析。