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Evolution of the Araliaceae family inferred from complete chloroplast genomes and 45S nrDNAs of 10 Panax-related species.

ABSTRACT: We produced complete sequences and conducted comparative analysis of the maternally inherited chloroplast (cp) genomes and bi-parentally inherited 45S nuclear ribosomal RNA genes (nrDNA) from ten Araliaceae species to elucidate the genetic diversity and evolution in that family. The cp genomes ranged from 155,993?bp to 156,730?bp with 97.1-99.6% similarity. Complete 45S nrDNA units were about 11?kb including a 5.8-kb 45S cistron. Among 79 cp protein-coding genes, 74 showed nucleotide variations among ten species, of which infA, rpl22, rps19 and ndhE genes showed the highest Ks values and atpF, atpE, ycf2 and rps15 genes showed the highest Ka/Ks values. Four genes, petN, psaJ, psbF, and psbN, related to photosynthesis and one gene, rpl23, related to the ribosomal large subunit remain conserved in all 10 Araliaceae species. Phylogenetic analysis revealed that the ten species could be resolved into two monophyletic lineages, the Panax-Aralia and the Eleutherococcus-Dendropanax groups, which diverged approximately 8.81-10.59 million years ago (MYA). The Panax genus divided into two groups, with diploid species including P. notoginseng, P. vietnamensis, and P. japonicus surviving in Southern Asia and a tetraploid group including P. ginseng and P. quinquefolius Northern Asia and North America 2.89-3.20 MYA.

SUBMITTER: Kim K

PROVIDER: S-EPMC5501832 | biostudies-literature | 2017 Jul

REPOSITORIES: biostudies-literature

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Evolution of the Araliaceae family inferred from complete chloroplast genomes and 45S nrDNAs of 10 Panax-related species.

Kim Kyunghee K Nguyen Van Binh VB Dong Jingzhou J Wang Ying Y Park Jee Young JY Lee Sang-Choon SC Yang Tae-Jin TJ

Scientific reports 20170707 1

We produced complete sequences and conducted comparative analysis of the maternally inherited chloroplast (cp) genomes and bi-parentally inherited 45S nuclear ribosomal RNA genes (nrDNA) from ten Araliaceae species to elucidate the genetic diversity and evolution in that family. The cp genomes ranged from 155,993 bp to 156,730 bp with 97.1-99.6% similarity. Complete 45S nrDNA units were about 11 kb including a 5.8-kb 45S cistron. Among 79 cp protein-coding genes, 74 showed nucleotide variations ...[more]

PMID: 28687778

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Dataset Information

Evolution of the Araliaceae family inferred from complete chloroplast genomes and 45S nrDNAs of 10 Panax-related species.

Publications

Evolution of the Araliaceae family inferred from complete chloroplast genomes and 45S nrDNAs of 10 Panax-related species.

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