XU Dan-yun,ZHANG Hui-ju,LI Ke-xin,et al.Molecular Identification of 22 Species of Lauraceae by DNA Barcoding[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(16):159-166.
XU Dan-yun,ZHANG Hui-ju,LI Ke-xin,et al.Molecular Identification of 22 Species of Lauraceae by DNA Barcoding[J].Chinese Journal of Experimental Traditional Medical Formulae,2021,27(16):159-166. DOI: 10.13422/j.cnki.syfjx.20211019.
Molecular Identification of 22 Species of Lauraceae by DNA Barcoding
DNA barcodes suitable for Lauraceae plants were screened,and 22 Lauraceae plants were identified and classified.
Method
2
The DNA of 22 species of Lauraceae was extracted and amplified by polymerase chain reaction(PCR) with different DNA barcoding primers,followed by electrophoresis and sequencing. Codon Code Aligner was used to proofread,splice, and remove the forward and reverse primer sequences. The sequence was imported into DNAMAN for multiple sequence alignment,and the base mutation sites were analyzed. The Kimura 2-Parameter(K2P) distance of different plants was calculated by MEGA,and the variation degree was analyzed according to the genetic distance. The phylogenetic tree was constructed based on the adjacency method.
Result
2
Three pairs of DNA barcoding primers were used to amplify and sequence the DNA of 22 species of Lauraceae,and 20 species were identified by comparing the specific base sites of gene sequences
.
Conclusion
2
Four
Litsea
plants could be identified by
matK
, three
Phoebe
plants except for
Cinnamomum validinerve
by
rbcL
, and 20 Lauraceae plants by the combination of
matK
,
rbcL
, and
rpoB
,which provided a theoretical basis for the identification and development of Lauraceae plants. Among them,
matK
was predominant in the identification of Lauraceae plants,and the results also showed that the combination of sequences for plant identification could achieve a better result in DNA barcoding. This study investigated the genetic relationship between Lauraceae plants at the molecular level,aiming at providing a basis for the investigation,cultivation,development,protection, and utilization of medicinal plant resources.
BARBOSA H , DA S R L C G , COSTASILVA T A , et al . Interaction of dicentrinone,an antitrypanosomal aporphine alkaloid isolated from Ocotea puberula (Lauraceae),in cell membrane models at the air-water interface [J]. Bioorg Chem , 2020 , 101 : 103978 .
MARI K , HEBERT D N . DNA barcode-based delineation of putative species:efficient start for taxonomic workflows [J]. Mol Ecol Resour , 2014 , 14 ( 4 ): 706 - 715
REN F M , WANG Y W , XU Z C , et al . DNA barcoding of Corydalis ,the most taxonomically complicated genus of Papaveraceae [J]. Ecol Evol , 2019 , 9 ( 4 ): 1934 - 1945
KRESS W J , ERICKSON D L . A two-locus global DNA barcode for land plants:the coding rbcl gene complements the non-coding trnh-psba spacer region [J]. PLoS One , 2007 , 2 ( 6 ): 1 - 10
TAHIR A , HUSSAIN F , AHMED N , et al . Assessing universality of DNA barcoding in geographically isolated selected desert medicinal species of Fabaceae and Poaceae [J]. Peer J , 2018 , 6 : 4499
HUANG Q L , DUAN Z G , YANG J F , et al . SNP typing for germplasm identification of Amomum villosum Lour. based on DNA barcoding markers [J]. PLoS One , 2017 , 9 ( 12 ): 508 .