The complete chloroplast genome sequence of Corylopsis multiflora Hance var. nivea Chang

Abstract

Corylopsis multiflora Hance var. nivea Chang is a variety of the species C. multiflora in the family Hamamelidaceae and is classed as critically endangered (CR) in the Red List of China Higher Plants. The complete chloroplast genome sequence of this taxon (as C. multiflora var. nivea in GeneBank, accession number: MW043717) was reported in this study. The genome size is 158,993 bp in length, consisting of a pair of inverted repeat regions (IR, 26,213bp), large single copy (LSC, 87,895bp) and small single copy (SSC, 18,672bp). A total of 133 genes were annotated that included 87 protein coding genes (PCGs), 37 transfer RNA (tRNAs), and 8 ribosome RNA (rRNAs) and 1 pseudo gene. GC content were 38.01%. The Bayesian phylogeny tree showed that C. multiflora var. nivea formed a monophyletic branch with Corylopis coreana and Corylopsis spicata.

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

“…nivea, which is a variety of C. multiflora characterized by glabrous young branches, leaves, peduncles, and short stamens and is endemic to Mt. Fuji, China ( Figure 7 ) [ 2 , 24 ]. The branched species are C. microcarpa, distributed in China, and C. coreana , which is endemic to the Republic of Korea [ 21 ].…”

“…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.…”