Dataset Information

Complete chloroplast genome of Sinosenecio jishouensis D.G. Zhang, Ying Liu & Q. E. Yang (Asteraceae), a narrow endemic species in Wuling Mountain Region, China.

ABSTRACT: The first complete chloroplast genome (cp) of Sinosenecio jishouensis D.G. Zhang, Ying Liu & Q. E. Yang (Asteraceae) was sequenced and assembled in this study. The cp genome was 151,257 bp in length, including a large single-copy(LSC) region of 83,373 bp, a small single-copy (SSC) region of 18,178 bp, and a pair of inverted repeat (IR) regions of 24,853 bp each. These sequences encoded 134 genes, including 89 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The phylogenetic analysis based on 18 complete cp sequences revealed that S. jishouensis was closely related to Eclipta prostrata.

SUBMITTER: Zhou Q

PROVIDER: S-EPMC7995908 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature

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Complete chloroplast genome of <i>Sinosenecio jishouensis</i> D.G. Zhang, Ying Liu & Q. E. Yang (Asteraceae), a narrow endemic species in Wuling Mountain Region, China.

Zhou Qiang Q Ou-Yang Jian-Hua JH Xie Jie-Nan JN Sun Yao Y Dong Ming-Yang MY

Mitochondrial DNA. Part B, Resources 20210318 3

The first complete chloroplast genome (cp) of <i>Sinosenecio jishouensis</i> D.G. Zhang, Ying Liu & Q. E. Yang (Asteraceae) was sequenced and assembled in this study. The cp genome was 151,257 bp in length, including a large single-copy(LSC) region of 83,373 bp, a small single-copy (SSC) region of 18,178 bp, and a pair of inverted repeat (IR) regions of 24,853 bp each. These sequences encoded 134 genes, including 89 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The phylogenetic analysis ...[more]

PMID: 33796708

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Project description:BackgroundSinosenecio B. Nordenstam (Asteraceae) currently comprises 44 species. To investigate the interspecific relationship, several chloroplast markers, including ndhC-trnV, rpl32-trnL, matK, and rbcL, are used to analyze the phylogeny of Sinosenecio. However, the chloroplast genomes of this genus have not been thoroughly investigated. We sequenced and assembled the Sinosenecio albonervius chloroplast genome for the first time. A detailed comparative analysis was performed in this study using the previously reported chloroplast genomes of three Sinosenecio species.ResultsThe results showed that the chloroplast genomes of four Sinosenecio species exhibit a typical quadripartite structure. There are equal numbers of total genes, protein-coding genes and RNA genes among the annotated genomes. Per genome, 49-56 simple sequence repeats and 99 repeat sequences were identified. Thirty codons were identified as RSCU values greater than 1 in the chloroplast genome of S. albonervius based on 54 protein-coding genes, indicating that they showed biased usage. Among 18 protein-coding genes, 46 potential RNA editing sites were discovered. By comparing these chloroplast genomes' structures, inverted repeat regions and coding regions were more conserved than single-copy and non-coding regions. The junctions among inverted repeat and single-copy regions showed slight difference. Several hot spots of genomic divergence were detected, which can be used as new DNA barcodes for species identification. Phylogenetic analysis of the whole chloroplast genome showed that the four Sinosenecio species have close interspecific relationships.ConclusionsThe complete chloroplast genome of Sinosenecio albonervius was revealed in this study, which included a comparison of Sinosenecio chloroplast genome structure, variation, and phylogenetic analysis for related species. These will help future research on Sinosenecio taxonomy, identification, origin, and evolution to some extent.

Dataset Information

Complete chloroplast genome of Sinosenecio jishouensis D.G. Zhang, Ying Liu & Q. E. Yang (Asteraceae), a narrow endemic species in Wuling Mountain Region, China.

Publications

Complete chloroplast genome of <i>Sinosenecio jishouensis</i> D.G. Zhang, Ying Liu & Q. E. Yang (Asteraceae), a narrow endemic species in Wuling Mountain Region, China.

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