Composition Analysis of Vernalization and Photoperiod Genes in Varieties（lines）Derived from Core Wheat Parent Zhou 8425B

doi:10.15933/j.cnki.1004-3268.2025.05.003

Abstract

Abstract: The distribution，combination types of photoperiod and vernalization genes in 219 materials［core wheat parent Zhou 8425B and its derived varieties（lines）］were detected using functional markers of vernalization genes（Vrn‑A1，Vrn‑B1 and Vrn‑D1） and photoperiod genes（Ppd‑A1，Ppd‑B1 and Ppd‑D1），and their effects on yield‐related traits were studied. The results indicated that the distribution frequencies of dominant vernalization genes of Vrn‑A1，Vrn‑B1 and Vrn‑D1 were 0，1.37% and 25.11% in 219 materials，respectively.There were three types of vernalization gene combinations in 219 materials，including vrn‑A1+vrn‑B1+vrn‑D1，vrn‑A1+vrn‑B1+Vrn‑D1 and vrn‑A1+Vrn‑B1+vrn‑D1，among which vrn‑A1+vrn‑B1+vrn‑D1 had the highest distribution frequency of 73.52%，and vrn‑A1+Vrn‑B1+vrn‑D1 had the lowest distribution frequency of 1.37%，indicating that most of the 219 materials were winter wheat.All varieties（lines）contained the photoperiod insensitive genes Ppd‑A1a，Ppd‑B1a and Ppd‑D1a.The vrn‑A1+vrn‑B1+vrn‑D1 combination had the highest yield，1 000‐grain weight and the shortest plant height；The vrn‑A1+Vrn‑B1+vrn‑D1 combination had the lowest yield，1 000‐grain weight and the tallest plant height；The vrn‑A1+vrn‑B1+Vrn‑D1 combination was middle.This indicates that the recessive vernalization gene combination has the highest yield，1 000‐grain weight and the shortest plant height；When the vernalization gene combination contains a dominant allele，the plant height increases，and the 1 000‐grain weight and yield decrease.

Key words: Wheat, Vernalization gene, Photoperiod gene, Zhou 8425B, Derivative varieties（lines）, Yield

摘要： 利用春化基因（Vrn-A1、Vrn-B1和Vrn-D1）和光周期基因（Ppd-A1、Ppd-B1和Ppd-D1）的分子标记对周8425B及其衍生品种（系）共计219份材料进行检测，研究春化基因和光周期基因分布、组合类型及其对小麦产量相关性状的影响。结果表明，显性春化基因Vrn-A1、Vrn-B1和Vrn-D1在周8425B及其衍生品种（系）中的分布频率分别为0、1.37% 和25.11%。在219份供试材料中，有3种春化基因组合vrn-A1+vrn-B1+vrn-D1、vrn-A1+vrn-B1+Vrn-D1、vrn-A1+Vrn-B1+vrn-D1，其中，春化基因均为隐性的组合即vrn-A1+vrn-B1+vrn-D1的分布频率最高（73.52%），vrn-A1+Vrn-B1+vrn-D1组合的分布频率最低（1.37%），说明219份供试材料大部分为冬性小麦。所有品种（系）均含有光周期不敏感型基因Ppd-A1a、Ppd-B1a和Ppd-D1a。vrn-A1+vrn-B1+vrn-D1组合产量、千粒质量最高，株高最矮；vrn-A1+Vrn-B1+vrn-D1组合产量和千粒质量最低，株高最高；vrn-A1+vrn-B1+Vrn-D1组合居中。表明隐性春化基因组合产量、千粒质量最高，株高最矮；春化基因组合中含有显性等位基因，则株高增高，千粒质量和产量降低。

关键词: 小麦, 春化基因, 光周期基因, 周8425B, 衍生品种（系）, 产量

CLC Number:

S512

LI Xiaode, BAI Xintong, WU Enzhao, LÜ Chunlei, CHEN Shulin, YIN Guihong, WANG Daowen, ZHANG Kunpu. Composition Analysis of Vernalization and Photoperiod Genes in Varieties（lines）Derived from Core Wheat Parent Zhou 8425B[J]. Journal of Henan Agricultural Sciences, 2025, 54(5): 23-30.

李晓德, 柏心彤, 吴恩召, 吕春蕾, 陈树林, 殷贵鸿, 王道文, 张坤普. 小麦骨干亲本周8425B 衍生品种（系）春化和光周期基因的组成分析[J]. 河南农业科学, 2025, 54(5): 23-30.

Figures/Tables 7

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