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Complete Chloroplast Genome Sequence of Decaisnea insignis: Genome Organization, Genomic Resources and Comparative Analysis.


ABSTRACT: Decaisnea insignis is a wild resource plant and is used as an ornamental, medicinal, and fruit plant. High-throughput sequencing of chloroplast genomes has provided insight into the overall evolutionary dynamics of chloroplast genomes and has enhanced our understanding of the evolutionary relationships within plant families. In the present study, we sequenced the complete chloroplast genome of D. insignis and used the data to assess its genomic resources. The D. insignis chloroplast genome is 158,683?bp in length and includes a pair of inverted repeats of 26,167?bp that are separated by small and large single copy regions of 19,162?bp and 87,187?bp, respectively. We identified 83 simple sequence repeats and 18 pairs of large repeats. Most simple-sequence repeats were located in the noncoding sections of the large single-copy/small single-copy region and exhibited a high A/T content. The D. insignis chloroplast genome bias was skewed towards A/T on the basis of codon usage. A phylogenetic tree based on 82 protein-coding genes of 33 angiosperms showed that D. insignis was clustered with Akebia in Lardizabalaceae. Overall, the results of this study will contribute to better understanding the evolution, molecular biology and genetic improvement of D. insignis.

SUBMITTER: Li B 

PROVIDER: S-EPMC5577308 | BioStudies | 2017-01-01

REPOSITORIES: biostudies

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