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Whole-genome sequencing and analysis of the Chinese herbal plant Gelsemium elegans.


ABSTRACT: Background:Gelsemium elegans (G. elegans) (2n = 2x = 16) is genus of flowering plants belonging to the Gelsemicaeae family. Method:Here, a high-quality genome assembly using the Oxford Nanopore Technologies (ONT) platform and high-throughput chromosome conformation capture techniques (Hi-C) were used. Results:A total of 56.11 Gb of raw GridION X5 platform ONT reads (6.23 Gb per cell) were generated. After filtering, 53.45 Gb of clean reads were obtained, giving 160 × coverage depth. The de novo genome assemblies 335.13 Mb, close to the 338 Mb estimated by k-mer analysis, was generated with contig N50 of 10.23 Mb. The vast majority (99.2%) of the G. elegans assembled sequence was anchored onto 8 pseudo-chromosomes. The genome completeness was then evaluated and 1338 of the 1440 conserved genes (92.9%) could be found in the assembly. Genome annotation revealed that 43.16% of the G. elegans genome is composed of repetitive elements and 23.9% is composed of long terminal repeat elements. We predicted 26,768 protein-coding genes, of which 84.56% were functionally annotated. Conclusion:The genomic sequences of G. elegans could be a valuable source for comparative genomic analysis in the Gelsemicaeae family and will be useful for understanding the phylogenetic relationships of the indole alkaloid metabolism.

SUBMITTER: Liu Y 

PROVIDER: S-EPMC7016290 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Whole-genome sequencing and analysis of the Chinese herbal plant <i>Gelsemium elegans</i>.

Liu Yisong Y   Tang Qi Q   Cheng Pi P   Zhu Mingfei M   Zhang Hui H   Liu Jiazhe J   Zuo Mengting M   Huang Chongyin C   Wu Changqiao C   Sun Zhiliang Z   Liu Zhaoying Z  

Acta pharmaceutica Sinica. B 20190816 2


<h4>Background</h4><i>Gelsemium elegans</i> (<i>G. elegans</i>) (2n = 2x = 16) is genus of flowering plants belonging to the Gelsemicaeae family.<h4>Method</h4>Here, a high-quality genome assembly using the Oxford Nanopore Technologies (ONT) platform and high-throughput chromosome conformation capture techniques (Hi-C) were used.<h4>Results</h4>A total of 56.11 Gb of raw GridION X5 platform ONT reads (6.23 Gb per cell) were generated. After filtering, 53.45 Gb of clean reads were obtained, givin  ...[more]

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