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Acta Prataculturae Sinica ›› 2019, Vol. 28 ›› Issue (4): 116-128.DOI: 10.11686/cyxb2018226

• Orignal Article • Previous Articles     Next Articles

Analysis of genetic differences and construction of an SSR marker fingerprint for Vicia sativa varieties

MIN Xue-yang, WEI Xing-yi, LIU Wen-xian*, ZHANG Zheng-she, JIN Xiao-yu, NDAYAMBAZA Boniface, WU Hong-lin, LI Yu, WANG Yan-rong*   

  1. State Key Laboratory of Grassland Agro-ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020, China
  • Received:2018-04-11 Revised:2018-05-31 Online:2019-04-20 Published:2019-04-20

Abstract: Transcription factors (TFs) are critical adaptor molecules that regulate many plant processes by controlling gene expression. The investigation of the availability of genomics data has proved a valuable resource for TF-SSR markers development. Through the analysis, we developed 208 SSR markers using published transcriptome sequence of Vicia sativa, and 35 pairs of SSR primers were screened out with a high polymorphism, stability, and clear bands. These 35 pairs of SSR primers amplified a total of 288 alleles in 30 V. sativa varieties tested, with an average of 8.23 alleles per SSR marker, the polymorphism ratio (PPB) was 100%, the polymorphic information content (PIC) ranged from 0.42 to 1.00, with an average of 0.80. Six pair of primers with multiple characteristic bands, which together could unambiguously distinguish the 30 tested V. sativa varieties, were selected as the core primers from these 35 pairs of primers. Finally, we constructed the DNA fingerprinting of each of the 30 V. sativa varieties using six core SSR markers. This work established a technical basis for the DUS testing, protection and genetic background analysis of V. sativa.

Key words: Vicia sativa, transcription factors, DUS testing, SSR markers, DNA fingerprinting, genetic differences