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SNP Markers Potential Applied in DUS Testing of Maize

文献类型： 外文期刊

作者： Guan, Jun-Jiao 1 ; Zhang, Peng 1 ; Huang, Qing-Mei 1 ; Wang, Jiang-Min 1 ; Yang, Xiao-Hong 1 ; Chen, Qiao-Bao 2 ; Zhan 1 ;

作者机构： 1.Yunnan Acad Agr Sci, Inst Qual Stand & Testing Technol, Kunming 650205, Yunnan, Peoples R China

2.Yun Nan Da Tian Zhong Ye You Xian Gong Si, Luoping 655800, Peoples R China

关键词： Maize variety; DUS testing; SNP; Plant variety protection

期刊名称：INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY （ 影响因子：0.822； 五年影响因子：0.906 ）

ISSN： 1560-8530

年卷期： 2020 年 23 卷 2 期

页码：

收录情况： SCI

摘要： Single nucleotide polymorphisms (SNPs) are abundant and evenly distributed throughout the maize (Zea mays L.) genome. In this research, 348 SNPs were selected to explore the possibility of utilization in maize distinctiveness, uniformity and stability (DUS) testing Mantel test indicated no missing information, by selecting the 384 SNPs. We examined 333 Chinese maize varieties with data from DUS test carried out for 42 characteristics and SNP genotyping data. The distance between varieties was calculated and we found no significant correlation between molecular and phenotypic distances. The phenotypic distances showed incredible differences, which are strongly influenced by environmental and statistical methods. It is necessary to set relative weightage for those characteristics which are easy to be affected by these factors in DUS testing. The application models for molecular markers in DUS testing should also go back to Model 1 (molecular characteristics as a predictor of traditional characteristics or gene specific markers) and look for more genetic linkage markers. (C) 2020 Friends Science Publishers

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