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The complete chloroplast genome of Cycas Szechuanensis, an extremely endangered species.

ABSTRACT: In this study, we determined the complete chloroplast genome of Cycas szechuanensis (Cycadaceae, Cycas) using the Illumina sequencing data. The genome is 162,083?bp in length, including a pair of inverted repeats (IRs) of 25,003?bp each, which are separated by a large single-copy region (LSC) and a small single-copy region (SSC) with the size of 88,970 and 23,108?bp, respectively. The genome comprises 131 encoded genes in total, including 86 protein-coding genes (82 PCG species), 8 ribosomal RNA genes (4 rRNA species), and 37 transfer RNA genes (30 tRNA species). The overall GC content of the C. szechuanensis chloroplast genome is 39.42%, while the LSC, SSC, and IRs occupy 38.70, 42.03 and 36.52%, respectively. Based on complete chloroplast genome sequences from 13 species, we reconstructed the phylogenetic relationship of the 13 species and found that C. szechuanensis is closely related to C. debaoensis.

SUBMITTER: Wang Y

PROVIDER: S-EPMC7800925 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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The complete chloroplast genome of Cycas Szechuanensis, an extremely endangered species.

Wang Yaling Y Wang Zefu Z Zhang Lei L Yang Xiaoyue X

Mitochondrial DNA. Part B, Resources 20180910 2

In this study, we determined the complete chloroplast genome of Cycas szechuanensis (Cycadaceae, Cycas) using the Illumina sequencing data. The genome is 162,083 bp in length, including a pair of inverted repeats (IRs) of 25,003 bp each, which are separated by a large single-copy region (LSC) and a small single-copy region (SSC) with the size of 88,970 and 23,108 bp, respectively. The genome comprises 131 encoded genes in total, including 86 protein-coding genes (82 PCG species), 8 ...[more]

PMID: 33474385

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