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Molecules. 2019 Mar 3;24(5). pii: E888. doi: 10.3390/molecules24050888.

Morphology and Molecular Identification of Twelve Commercial Varieties of Kiwifruit.

Author information

1
School of Forensic Medicine, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an 710061, China. sunshineqiaoer@xjtu.edu.cn.
2
School of Forensic Medicine, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an 710061, China. yanchunxia@mail.xjtu.edu.cn.
3
School of Energy and Power Engineering, Chongqing University, 174 Shapingba Main Street, Chongqing 400030, China. yanfei0506@cqu.edu.cn.
4
School of Forensic Medicine, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an 710061, China. weisg@mail.xjtu.edu.cn.
5
School of Forensic Medicine, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an 710061, China. laijh1011@mail.xjtu.edu.cn.
6
School of Forensic Medicine, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an 710061, China. wyp033@xjtu.edu.cn.
7
School of Forensic Medicine, Xi'an Jiaotong University, 76 Yanta West Road, Xi'an 710061, China. zhangbao_814@mail.xjtu.edu.cn.

Abstract

The quality and safety of food are important guarantees for the health and legal rights of consumers. As an important special fruitcrop, there are frequently shoddy practices in the kiwifruit (Actinidia chinensis) market, which harms the interests of consumers. However, there is lack of rapid and accurate identification methods for commercial kiwifruit varieties. Here, twelve common commercial varieties of kiwifruit were morphologically discriminated. DNA barcodes of chloroplast regions psbA-trnH, rbcL, matK, rpoB, rpoC1, ycf1b, trnL and rpl32_trnL(UAG), the nuclear region At103 and intergenic region ITS2 were amplified. Divergences and phylogenetic trees were used to analyze the phylogenetic relationship of these twelve commercial kiwifruit varieties. The results showed that matK, ITS2 and rpl32_trnL(UAG) can be utilized as molecular markers to identify CuiYu, JinYan, HuangJinGuo, ChuanHuangJin, HuaYou, YaTe, XuXiang and HongYang. This provides experimental and practical basis to scientifically resolve kiwifruit-related judicial disputes and legal trials.

KEYWORDS:

DNA barcode; food safety; kiwifruit (Actinidia chinensis); molecular identification; phylogeny

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