XIE Ying,HUA Zhongyi,ZHAO Yuyang,et al.Rapid Screening of Gastrodia elata with High Purity by PCR-RFLP Identification[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(17):113-118.
XIE Ying,HUA Zhongyi,ZHAO Yuyang,et al.Rapid Screening of Gastrodia elata with High Purity by PCR-RFLP Identification[J].Chinese Journal of Experimental Traditional Medical Formulae,2022,28(17):113-118. DOI: 10.13422/j.cnki.syfjx.20221212.
Rapid Screening of Gastrodia elata with High Purity by PCR-RFLP Identification
To establish a rapid screening method for germplasm materials of
Gastrodia elata
with high purity, and lay a foundation for pure line breeding and cross breeding.
Method
2
Based on the whole genome sequencing and population resequencing of
G. elata
, 20 restriction fragment length polymorphism (RFLP) markers were developed by single nucleotide polymorphism (SNP) sites. The polymerase chain reaction (PCR)-RFLP method was used to carry out restriction endonuclease experiments on 20 RFLP markers of 15
G. elata
germplasms. According to the number of enzymatic bands at 20 RFLP marker sites
the purity of 15 germplasms was calculated and evaluated. On this basis
genome resequencing technology was used to verify the assessment results.
Result
2
Ten germplasm materials with purity greater than 95% were screened out by PCR-RFLP method, 3 of which had 95% purity and 7 had 100% purity. Nine germplasm materials with purity greater than 95% were screened out by genome resequencing methods
and 8 of them were consistent with the results of PCR-RFLP.
Conclusion
2
The PCR-RFLP method established in this study for screening
G. elata
germplasms with high purity precision of RFLP markers has 80% precision and 89% accuracy. The method is simple, efficient, and significantly less expensive than genome resequencing method
which provides technical support for pure line breeding of
G. elata
and references for breeding of other Chinese medicinal materials.
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