Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (5): 62-67. doi: 10.7668/hbnxb.20193068

Special Issue: Wheat Biotechnology

• Crop Genetics & Breeding·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Composition and Distribution of Wheat VRN Genes and Their Relationship with Vernalization in the Northern China Winter Wheat Region

ZHAO Jie1, LIU Hongquan2, ZHAO Yun1, YANG Kai1,3, FU Yongbin4, GU Yuzhang4, SUN Lijing1, HU Mengyun1, LI Hui1, , ZHANG Yingjun1,   

  1. 1 Institute of Cereal and Oil Crops,Hebei Academy of Agriculture and Forestry Sciences, Hebei Provincial Laboratory of Crop Genetics and Breeding,Shijiazhuang 050035,China
    2 Hebei Hongrui Seed Limited Company,Shijiazhuang 050035,China
    3 School of Landscape and Ecological Engineering,Hebei University of Engineering,Handan 056038,China
    4 Zhangjiakou Academy of Agriculture Sciences,Zhangjiakou 075000,China
  • Received:2022-06-26 Published:2022-10-28
  • Contact: LI Hui, ZHANG Yingjun

Abstract:

In order to explore the relationship between the vernalization genes and winter-spring characteristics of wheat varieties in the Northern China Winter Wheat Region,271 wheat cultivars from the Northern China Winter Wheat Region were used as materials to detect the composition and distribution of four vernalization genes Vrn-A1,Vrn-B1,Vrn-D1 and Vrn-B3 by molecular markers.The heading date of these cultivars in the field was observed in Sanya,Hainan Province,and their winter-spring characteristics were investigated with the data recorded.The results showed that in this wheat region:among the four dominant alleles,Vrn-D1 (27.7%)had the highest distribution frequency in the tested cultivars and the distribution frequency decreased gradually from the South to the North;the distribution frequency of dominant Vrn-B1 alleles (3.0%)was very low in wheat materials in this wheat region;none of the test materials contained the dominant alleles Vrn-A1 and Vrn-B3;the most common vernalization gene allele combination was vrn-A1/vrn-B1/vrn-D1/vrn-B3.Further analysis of winterness-springness type of the test cultivars showed that some cultivars containing the dominant allele Vrn-D1 must be vernalized to blossom,while the wheat cultivars containing the dominant allele Vrn-B1 had a weak demand for vernalization.Among the four dominant vernalization genes,only the dominant alleles Vrn-D1 and Vrn-B1 were distributed in the tested cultivars in the Northern China Winter Wheat Region.The effect of Vrn-B1 on the vernalization development characteristics was stronger than that of Vrn-D1.

Key words: Common wheat, Vernalization gene, Winterness-springness type

Cite this article

ZHAO Jie, LIU Hongquan, ZHAO Yun, YANG Kai, FU Yongbin, GU Yuzhang, SUN Lijing, HU Mengyun, LI Hui, ZHANG Yingjun. Composition and Distribution of Wheat VRN Genes and Their Relationship with Vernalization in the Northern China Winter Wheat Region[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(5): 62-67. doi: 10.7668/hbnxb.20193068.

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