ArticleScientific reports2019
The screening and identification of DNA barcode sequences for Rehmannia.
Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 35 citations in OpenAlex.
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
In this study, ITS, ITS2, matK, rbcL and psbA-trnH in Rehmannia were successfully amplified and sequenced, but some ITS sequences need to be proofread according to ITS2 sequences. Compared with rbcL, matK and psbA-trnH, ITS and ITS2 had higher mutation rate and more information sites, and ITS2 had higher interspecific diversity and lower intraspecific variation in Rehmannia, but the interspecific genetic variation of rbcL and matK was lower. Furthermore, the obvious barcoding gap was found in psbA-trnH or ITS2 + psbA-trnH, and the overlap between interspecific and intraspecific variation of ITS, ITS2 or matK was less. In addition, the phylogenetic tree based on ITS or ITS2 indicated that R. glutinosa, R. chingii or R. henryi with obvious monophyly could be successfully identified, but R. piasezkii and R. elata were clustered into one branch, R. solanifolia could not be distinguished from R. glutinosa, and R. chingii was closer to R. henryi. In phylogenetic tree based on psbA-trnH or ITS2 + psbA-trnH, cultivars and wild varieties of R. glutinosa could be distinguished, were clearly separated from other Rehmannia species, and cultivars or wild varieties of R. glutinosa could be also distinguished by matK. Taken together, ITS2 has great potential in systematic study and species identification of Rehmannia, the combination of ITS2 and psbA-trnH might be the most suitable DNA barcode for Rehmannia species.
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