The complete chloroplast genome sequence of Corylopsis sinensis (Hamamelidaceae)

Abstract

Corylopsis sinensis Hemsl. is a deciduous shrub endemic to China, which is a valuable medicinal and ornamental species. In this study, we report the complete chloroplast genome sequence of C . sinensis , providing a genomic basis for future research. The chloroplast genome is 159,419 base pairs (bp) in length, with a large single-copy (LSC) region of 88,152 bp, a small single-copy (SSC) region of of 18,701 bp, and two inverted repeat (IR) regions of 26,283 bp. The overall GC content is 38.0% and the chloroplast genome encodes 113 unique genes including 79 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. The phylogenetic results show that C. sinensis is sister to C. spicata . These results of C. sinensis will improve our understanding of the evolution of Corylopsis and Hamamelidaceae.

First Record of Comparative Plastid Genome Analysis and Phylogenetic Relationships among Corylopsis Siebold & Zucc. (Hamamelidaceae)

“…Although Wang et al [ 3 ] reconstructed the phylogenetic relationships of Hamamelidaceae using the plastid genome, the detailed phylogenetic relationships within the genus Corylopsis are unknown. Currently, the plastomes of seven species in the genus Corylopsis are registered in GenBank [ 3 , 21 , 22 , 23 , 24 , 25 ]. In this study, we aimed to (1) construct an unknown plastid genome of three species of Corylopsis to identify the phylogenetic relationships within Hamamelidaceae, (2) investigate repeats to propose DNA markers, and (3) perform a comparative examination of the plastid genome of Corylopsis and assess the phylogenetic associations.…”