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. 2019 Oct 15;4(2):3560-3562.
doi: 10.1080/23802359.2019.1668311.

The complete chloroplast genome sequence of an economic plant Salix wilsonii

Dongyang Wu  1 , Yupeng Wang  1 , Li Zhang  1
Affiliations
Free PMC article

The complete chloroplast genome sequence of an economic plant Salix wilsonii

Dongyang Wu et al. Mitochondrial DNA B Resour. .
Free PMC article

Abstract

In this study, we report the first complete chloroplast (cp) genome sequence of Salix wilsonii. The cp genome is 155,026 bp in length, exhibiting a typical quadripartite structure of a large single copy (LSC) region of 83,917 bp, a small single copy (SSC) region of 16,285 bp and a pair of inverted repeats (IRs) region of 27,412 bp. The overall base composition of the cp genome in asymmetric order is A: 32.09%, C: 17.94%, G: 18.65%, and T: 31.31%, and the AT content is 63.4%, whereas the proportions of AT contents in LSC, SSC, and IR regions are 66.53%, 68.99%, and 58.27%, respectively. Further, phylogenetic analysis of 46 species shows that S. wilsonii is evolutionarily closest to Sailx tetrasperma, and both of them belong to the genus Salix.

Keywords: Salix wilsonii; chloroplast genome; phylogeny; rubiaceae.

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Conflict of interest statement

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.

Figures

Figure 1.
Figure 1.
The neighbour-joining phylogenetic tree based on 76 protein-coding genes of 46 species was constructed with MEGA7. The genes were extracted from cp genomes and aligned with Muscle. The bootstrap values from 1000 replicates are listed for each node.
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