3 new SCAR markers for Dendrobium williamsonii Day et Rchb. f.,Dendrobium findlayanum E. C. Parish et Rchb. f. and Pholidota chinensis Lindl. by improved RAPD amplification
3 new SCAR markers for Dendrobium williamsonii Day et Rchb. f.,Dendrobium findlayanum E. C. Parish et Rchb. f. and Pholidota chinensis Lindl. by improved RAPD amplification[J]. Journal of Southwest Medical University, 2024,47(1):29-33.
3 new SCAR markers for Dendrobium williamsonii Day et Rchb. f.,Dendrobium findlayanum E. C. Parish et Rchb. f. and Pholidota chinensis Lindl. by improved RAPD amplification[J]. Journal of Southwest Medical University, 2024,47(1):29-33. DOI: 10.3969/j.issn.2096-3351.2024.01.007.
Objective To find the SCAR(sequence characterized amplified regions) markers that can quickly distinguish Dendrobium williamsonii Day et Rchb. f., Den. findlayanum Par. et Rchb. f. and Pholidota chinensis Lindl.. Methods In this paper,based on random amplified polymorphic DNA (RAPD),we randomly amplified the genomic DNA of 10 species,using the method of molecular cloning and sequencing,and got the SCAR markers which can identify the three species. Results Three specific markers (N2-12,A2-17,A6-33) were screened. The primer N2-12 amplified a specific band of about 750 bp in the species of Dendrobium williamsonii Day et Rchb. f.,A2-17 amplified a specific band of about 750 bp in the species of Den. findlayanum Par. et Rchb. f.,and A6-33 amplified a specific band of about 600 bp in the species of Pholidota chinensis Lindl.. Conclusion These three pairs of specific SCAR markers could quickly and accurately distinguish the above three species,providing an experimental basis for the identification of this authentic Chinese medicinal plant in the future.
关键词
黑毛石斛蜂腰石斛石仙桃序列特征扩增区域标记鉴定
Keywords
Dendrobium williamsonii Day et Rchb. f.Dendrobium findlayanum E. C. Parish et Rchb. f.Pholidota chinensis Lindl.SCAR markerIdentification