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The complete chloroplast genome sequence of Rhus chinensis Mill (Anacardiaceae).

ABSTRACT: In this study, complete chloroplast genome sequences of Rhus chinensis was characterized by de novo assembly using whole genome sequence data. The chloroplast genome of R. chinensis were 149,011bp long, which was comprised of a large single copy region of 96,882?bp, a small single copy region of 18,647bp, and a pair of inverted repeats of 16,741?bp. The genome contained 77 protein-coding genes, four rRNA genes and 30 tRNA genes. Phylogenetic tree revealed that R. chinensis was closely grouped with Spondias species, S. tuberosa and S. bahiensis, belonging to the Anacardiaceae family.

SUBMITTER: Lee YS

PROVIDER: S-EPMC7871870 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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The complete chloroplast genome sequence of Rhus chinensis Mill (Anacardiaceae).

Lee Yun Sun YS Kim Inseo I Kim Jin-Kyung JK Park Jee Young JY Joh Ho Jun HJ Park Hyun-Seung HS Lee Hyun Oh HO Lee Sang-Choon SC Hur Young-Jin YJ Yang Tae-Jin TJ

Mitochondrial DNA. Part B, Resources 20160901 1

In this study, complete chloroplast genome sequences of Rhus chinensis was characterized by de novo assembly using whole genome sequence data. The chloroplast genome of R. chinensis were 149,011bp long, which was comprised of a large single copy region of 96,882 bp, a small single copy region of 18,647bp, and a pair of inverted repeats of 16,741 bp. The genome contained 77 protein-coding genes, four rRNA genes and 30 tRNA genes. Phylogenetic tree revealed that R. chinensi ...[more]

PMID: 33644378

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Project description:BackgroundThe suamc genus Rhus (sensu stricto) includes two subgenera, Lobadium (ca. 25 spp.) and Rhus (ca. 10 spp.). Their members, R. glabra and R. typhina (Rosanae: Sapindales: Anacardiaceae), are two economic important species. Chloroplast genome information is of great significance for the study of plant phylogeny and taxonomy.ResultsThe three complete chloroplast genomes from two Rhus glabra and one R. typhina accessions were obtained with a total of each about 159k bp in length including a large single-copy region (LSC, about 88k bp), a small single-copy regions (SSC, about 19k bp) and a pair of inverted repeats regions (IRa/IRb, about 26k bp), to form a canonical quadripartite structure. Each genome contained 88 protein-coding genes, 37 transfer RNA genes, eight ribosomal RNA genes and two pseudogenes. The overall GC content of the three genomes all were same (37.8%), and RSCU values showed that they all had the same codon prefers, i.e., to use codon ended with A/U (93%) except termination codon. Three variable hotspots, i.e., ycf4-cemA, ndhF-rpl32-trnL and ccsA-ndhD, and a total of 152-156 simple sequence repeats (SSR) were identified. The nonsynonymous (Ka)/synonymous (Ks) ratio was calculated, and cemA and ycf2 genes are important indicators of gene evolution. The phylogenetic analyses of the family Anacardiaceae showed that the eight genera were grouped into three clusters, and supported the monophyly of the subfamilies and all the genera. The accessions of five Rhus species formed four clusters, while, one individual of R. typhina grouped with the R. glabra accessions instead of clustering into the two other individuals of R. typhina in the subgenus Rhus, which showed a paraphyletic relationship.ConclusionsComparing the complete chloroplast genomes of the Rhus species, it was found that most SSRs were A/T rich and located in the intergenic spacer, and the nucleotide divergence exhibited higher levels in the non-coding region than in the coding region. The Ka/Ks ratio of cemA gene was > 1 for species collected in America, while it was < 1 for other species in China, which dedicated that the Rhus species from North America and East Asia have different evolutionary pressure. The phylogenetic analysis of the complete chloroplast genome clarified the Rhus placement and relationship. The results obtained in this study are expected to provide valuable genetic resources to perform species identification, molecular breeding, and intraspecific diversity of the Rhus species.

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The complete chloroplast genome sequence of Rhus chinensis Mill (Anacardiaceae).

Publications

The complete chloroplast genome sequence of <i>Rhus chinensis</i> Mill (Anacardiaceae).

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