Dataset Information

The complete chloroplast genome sequence of Pittosporum kerrii: the first Pittosporaceae plastome.

ABSTRACT: The first complete chloroplast genome (cpDNA) sequence of Pittosporum kerrii was determined from Illumina HiSeq pair-end sequencing data in this study. The cpDNA is 153,581?bp in length, contains a large single-copy region (LSC) of 84,940?bp and a small single-copy region (SSC) of 18,741?bp, which were separated by a pair of inverted repeats (IR) regions of 24,950?bp. The genome contains 132 genes, including 87 protein-coding genes, 8 ribosomal RNA genes, and 37 transfer RNA genes. The overall GC content of the whole genome is 38.3%, and the corresponding values of the LSC, SSC, and IR regions are 36.5, 32.5, and 43.3%, respectively. Further, phylogenomic analysis showed that P. kerrii clustered in a unique clade in order Apiales.

SUBMITTER: Wang Y

PROVIDER: S-EPMC7707811 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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The complete chloroplast genome sequence of <i>Pittosporum kerrii</i>: the first Pittosporaceae plastome.

Wang Yi Y Zhao Chuan C Li Yunqing Y

Mitochondrial DNA. Part B, Resources 20191112 2

The first complete chloroplast genome (cpDNA) sequence of <i>Pittosporum kerrii</i> was determined from Illumina HiSeq pair-end sequencing data in this study. The cpDNA is 153,581 bp in length, contains a large single-copy region (LSC) of 84,940 bp and a small single-copy region (SSC) of 18,741 bp, which were separated by a pair of inverted repeats (IR) regions of 24,950 bp. The genome contains 132 genes, including 87 protein-coding genes, 8 ribosomal RNA genes, and 37 transfer RNA genes. The ov ...[more]

PMID: 33366269

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Project description:Bignoniaceae is a Pantropical plant family that is especially abundant in the Neotropics. Members of the Bignoniaceae are diverse in many ecosystems and represent key components of the Tropical flora. Despite the ecological importance of the Bignoniaceae and all the efforts to reconstruct the phylogeny of this group, whole chloroplast genome information has not yet been reported for any members of the family. Here, we report the complete chloroplast genome sequence of Tanaecium tetragonolobum (Jacq.) L.G. Lohmann, which was reconstructed using de novo and referenced-based assembly of single-end reads generated by shotgun sequencing of total genomic DNA in an Illumina platform. The gene order and organization of the chloroplast genome of T. tetragonolobum exhibits the general structure of flowering plants, and is similar to other Lamiales chloroplast genomes. The chloroplast genome of T. tetragonolobum is a circular molecule of 153,776 base pairs (bp) with a quadripartite structure containing two single copy regions, a large single copy region (LSC, 84,612 bp) and a small single copy region (SSC, 17,586 bp) separated by inverted repeat regions (IRs, 25,789 bp). In addition, the chloroplast genome of T. tetragonolobum has 38.3% GC content and includes 121 genes, of which 86 are protein-coding, 31 are transfer RNA, and four are ribosomal RNA. The chloroplast genome of T. tetragonolobum presents a total of 47 tandem repeats and 347 simple sequence repeats (SSRs) with mononucleotides being the most common and di-, tri-, tetra-, and hexanucleotides occurring with less frequency. The results obtained here were compared to other chloroplast genomes of Lamiales available to date, providing new insight into the evolution of chloroplast genomes within Lamiales. Overall, the evolutionary rates of genes in Lamiales are lineage-, locus-, and region-specific, indicating that the evolutionary pattern of nucleotide substitution in chloroplast genomes of flowering plants is complex. The discovery of tandem repeats within T. tetragonolobum and the presence of divergent regions between chloroplast genomes of Lamiales provides the basis for the development of markers at various taxonomic levels. The newly developed markers have the potential to greatly improve the resolution of molecular phylogenies.

Dataset Information

The complete chloroplast genome sequence of Pittosporum kerrii: the first Pittosporaceae plastome.

Publications

The complete chloroplast genome sequence of <i>Pittosporum kerrii</i>: the first Pittosporaceae plastome.

Similar Datasets

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