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Comparative analysis of plastid genomes within the Campanulaceae and phylogenetic implications
Li, Chun-Jiao1; Wang, Ruo-Nan2; Li, De-Zhu1
Corresponding AuthorLi, De-Zhu(dzl@mail.kib.ac.cn)
2020-05-14
Source PublicationPLOS ONE
ISSN1932-6203
Volume15Issue:5Pages:23
AbstractThe conflicts exist between the phylogeny of Campanulaceae based on nuclear ITS sequence and plastid markers, particularly in the subdivision of Cyanantheae (Campanulaceae). Besides, various and complicated plastid genome structures can be found in species of the Campanulaceae. However, limited availability of genomic information largely hinders the studies of molecular evolution and phylogeny of Campanulaceae. We reported the complete plastid genomes of three Cyanantheae species, compared them to eight published Campanulaceae plastomes, and shed light on a deeper understanding of the applicability of plastomes. We found that there were obvious differences among gene order, GC content, gene compositions and IR junctions of LSC/IRa. Almost all protein-coding genes and amino acid sequences showed obvious codon preferences. We identified 14 genes with highly positively selected sites and branch-site model displayed 96 sites under potentially positive selection on the three lineages of phylogenetic tree. Phylogenetic analyses showed that Cyananthus was more closely related to Codonopsis compared with Cyclocodon and also clearly illustrated the relationship among the Cyanantheae species. We also found six coding regions having high nucleotide divergence value. Hotpot regions were considered to be useful molecular markers for resolving phylogenetic relationships and species authentication of Campanulaceae.
DOI10.1371/journal.pone.0233167
Indexed BySCI ; SCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000537490700079
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/71886
Collection中国西南野生生物种质资源库
Corresponding AuthorLi, De-Zhu
Affiliation1.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming, Yunnan, Peoples R China
2.Northwest Univ, Coll Life Sci, Xian, Peoples R China
Recommended Citation
GB/T 7714
Li, Chun-Jiao,Wang, Ruo-Nan,Li, De-Zhu. Comparative analysis of plastid genomes within the Campanulaceae and phylogenetic implications[J]. PLOS ONE,2020,15(5):23.
APA Li, Chun-Jiao,Wang, Ruo-Nan,&Li, De-Zhu.(2020).Comparative analysis of plastid genomes within the Campanulaceae and phylogenetic implications.PLOS ONE,15(5),23.
MLA Li, Chun-Jiao,et al."Comparative analysis of plastid genomes within the Campanulaceae and phylogenetic implications".PLOS ONE 15.5(2020):23.
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