Journal of Northern Agriculture ›› 2024, Vol. 52 ›› Issue (6): 13-21.doi: 10.12190/j.issn.2096-1197.2024.06.02

• Molecular biology • Previous Articles     Next Articles

Identification of pre-harvest sprouting resistance and molecular marker detection of genes in Ping′an series wheat varieties(lines)

LYU Qingfeng1, ZHU Changtao1, WANG Gang1, LYU Yuanfeng1, YAN Zedong2, ZHANG Zhen3, ZHANG Lilin1   

  1. 1. Henan Ping′an Seed Industry Co.,Ltd.,Wenxian 454850,China;
    2. Agricultural Technology Promotion Center of Xincai County,Xincai 463500,China;
    3. Service Center of Rural Industry Development in Henan Province,Zhengzhou 450000,China
  • Received:2024-06-28 Online:2024-12-20 Published:2025-03-05

Abstract: 【Objective】To investigate the pre-harvest sprouting resistance and genetic composition of Ping′an series wheat varieties(lines).【Methods】The pre-harvest sprouting characteristics of 14 Ping′an series varieties(lines) were analyzed by whole ear germination method,and the sources of pre-harvest sprouting resistance genes were detected by molecular markers of 5 anti pre-harvest sprouting genes.【Results】Among the 14 varieties(lines),the relative pre-harvest sprouting index of Ping′an No. 11 was 0.19,reached the level of resistance;the relative pre-harvest sprouting indexes of Ping′an 658 and Ping′an 701 were 0.35 and 0.37,respectively,reached the level of moderately resistance. The results of molecular marker detection of anti pre-harvest sprouting genes showed that the relative pre-harvest sprouting index of haplotype composed of three loci (-222、+646、+666) of TaPHS1 gene was CGAC<TGAC<TGAT<TATT from low to high,and Ping′an No. 11 contained the best haplotype of TaPHS1 gene of anti pre-harvest sprouting,7 wheat varieties(lines) including Ping′an 901 contained anti pre-harvest sprouting gene TaVp1B3,4 wheat varieties including Ping′an 12 contain anti pre-harvest sprouting gene PM19A-1,all 14 wheat varieties(lines) contain neither of anti pre-harvest sprouting gene Dorm-1 or Tamyb10-D.【Conclusion】Ping′an No. 11 is the only variety with hap-CGAC resistant to pre-harvest sprouting,which can be used in cultivating new varieties of anti pre-harvest sprouting wheat and discovering new anti pre-harvest sprouting gene.

Key words: Wheat, Pre-harvest sprouting resistance, Evaluation of resistance, Germination index, Molecular marker, Allelic variation

CLC Number: 

  • S512.1