Dataset Information

The complete chloroplast genome sequence of Korean Lonicera japonica and intra-species diversity.

ABSTRACT: Lonicera japonica is a traditional medicinal plant well known for its anti-inflammatory effect. The complete chloroplast genome sequence of L. japonica collected from Korea was obtained by de novo assembly using whole genome sequence data. The chloroplast genome is 155,060?bp in length, containing 88,853?bp in a large single copy (LSC), 18,653?bp in a small single copy (SSC) and 23,777?bp in a pair of inverted repeats (IRs). A total of 112 genes including 78 protein-coding genes and 34 structural RNA genes were identified. The sequence comparison of two L. japonica collected from Korea and China revealed 48 single nucleotide polymorphisms (SNPs) and 45 insertions/deletions (InDels). In addition, phylogenetic analysis represented intraspecific diversity within L. japonica species collected in Korea and China.

SUBMITTER: Kang SJ

PROVIDER: S-EPMC7800441 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature

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The complete chloroplast genome sequence of Korean Lonicera japonica and intra-species diversity.

Kang Shin-Jae SJ Park Hyun-Seung HS Koo Hyun Jo HJ Park Jee Young JY Lee Dong Young DY Kang Kyo Bin KB Han Sang Il SI Sung Sang Hyun SH Yang Tae-Jin TJ

Mitochondrial DNA. Part B, Resources 20180823 2

Lonicera japonica is a traditional medicinal plant well known for its anti-inflammatory effect. The complete chloroplast genome sequence of L. japonica collected from Korea was obtained by de novo assembly using whole genome sequence data. The chloroplast genome is 155,060 bp in length, containing 88,853 bp in a large single copy (LSC), 18,653 bp in a small single copy (SSC) and 23,777 bp in a pair of inverted repeats (IRs). A total of 112 genes including 78 protein-coding g ...[more]

PMID: 33474373

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Project description:BackgroundThe recent determination of complete chloroplast (cp) genomic sequences of various plant species has enabled numerous comparative analyses as well as advances in plant and genome evolutionary studies. In angiosperms, the complete cp genome sequences of about 70 species have been determined, whereas those of only three gymnosperm species, Cycas taitungensis, Pinus thunbergii, and Pinus koraiensis have been established. The lack of information regarding the gene content and genomic structure of gymnosperm cp genomes may severely hamper further progress of plant and cp genome evolutionary studies. To address this need, we report here the complete nucleotide sequence of the cp genome of Cryptomeria japonica, the first in the Cupressaceae sensu lato of gymnosperms, and provide a comparative analysis of their gene content and genomic structure that illustrates the unique genomic features of gymnosperms.ResultsThe C. japonica cp genome is 131,810 bp in length, with 112 single copy genes and two duplicated (trnI-CAU, trnQ-UUG) genes that give a total of 116 genes. Compared to other land plant cp genomes, the C. japonica cp has lost one of the relevant large inverted repeats (IRs) found in angiosperms, fern, liverwort, and gymnosperms, such as Cycas and Gingko, and additionally has completely lost its trnR-CCG, partially lost its trnT-GGU, and shows diversification of accD. The genomic structure of the C. japonica cp genome also differs significantly from those of other plant species. For example, we estimate that a minimum of 15 inversions would be required to transform the gene organization of the Pinus thunbergii cp genome into that of C. japonica. In the C. japonica cp genome, direct repeat and inverted repeat sequences are observed at the inversion and translocation endpoints, and these sequences may be associated with the genomic rearrangements.ConclusionThe observed differences in genomic structure between C. japonica and other land plants, including pines, strongly support the theory that the large IRs stabilize the cp genome. Furthermore, the deleted large IR and the numerous genomic rearrangements that have occurred in the C. japonica cp genome provide new insights into both the evolutionary lineage of coniferous species in gymnosperm and the evolution of the cp genome.

Dataset Information

The complete chloroplast genome sequence of Korean Lonicera japonica and intra-species diversity.

Publications

The complete chloroplast genome sequence of Korean <i>Lonicera japonica</i> and intra-species diversity.

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