Research Article

A Modified CTAB Method for Genomic DNA Extraction from Apple Fruit  

Jiuying Yan , Changqing Ma , Chang  Bo , Xianguang Fan , Zheng Li , Yazhou Yang , Zhengyang Zhao
Northwest Agriculture & Forestry University, College of Horticulture, Yangling, 712100, China
Author    Correspondence author
Molecular Plant Breeding, 2018, Vol. 9, No. 5   doi: 10.5376/mpb.2018.09.0005
Received: 25 Mar., 2018    Accepted: 30 Apr., 2018    Published: 11 May, 2018
© 2018 BioPublisher Publishing Platform
This article was first published in in Chinese, and here was authorized to translate and publish the paper in English under the terms of Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Yan J.Y., Ma C.Q., Chang B., Fan X.G., Li Z., Yang Y.Z., and Zhao Z.Y., 2018, A modified CTAB method for genomic DNA extraction from apple fruit, Molecular Plant Breeding, 9(5): 36-43 (doi: 10.5376/mpb.2018.09.0005)

 

 

Abstract

According to the high content of polysaccharides and polyphenols in apple fruits, three modified CTAB methods were used to extract genomic DNA of ‘Granny Smith’, with young leaves as control. The results showed that the method three was the best. This method integrated multiple purification steps, adding the interferent scavenger before cell lysis, increasing the concentration of β-mercaptoethanol and PVP to inhibite the oxidation of polyphenol, and adding 3 mol/L NaAC of 1/10 volume, which effectively removed the polysaccharides, polyphenols and other secondary metabolites. The results of ultraviolet spectrophotometer and agarose gel electrophoresis showed that DNA was high purity and good integrity. The results of ISSR primers amplification showed that the bands were clear. The results of the digestion of EcoR I restriction enzyme indicated that DNA could be digested by restriction enzyme. Therefore, the method three is the best for genomic DNA extraction. This method provides a reference for the removal of polysaccharides and polyphenols in the process of DNA extraction.

Keywords
Apple; DNA extraction; Polysaccharides; Polyphenols
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