Abstract

Using allele-specific primers and hybridological analysis, the allelic composition of the VRN and PPD loci was determined in common wheat lines derived from the Bezostaya 1 (Bez1) cultivar. In lines of the Bez1 cultivar carrying different dominant alleles of the VRN genes and their combinations, the duration of certain developmental phases was examined. It was demonstrated that, in lines with the combination of two dominant alleles of the VRN-1 locus (Bez1Vrn-A1aVrn-B1a and Bez1Vrn-A1aVrn-B1c), the duration of the “tillering–first node” and “shoots–heading” periods was statistically significantly decreased compared to the initial isogenic lines (i:Bez1Vrn-A1a, i:Bez1Vrn-B1a, and i:Bez1Vrn-B1c). In addition, the presence of two dominant alleles led to the reduction in the time span of the organogenesis stages, as shown by studying the dynamics of shoot apex size and morphology in common wheat lines of the Bez1 cultivar. The productivity analysis in the lines of the Bez1 cultivar showed that the i:Bez1Vrn-B1c line was characterized by highest productivity among isogenic lines, while the Bez1Vrn-A1a Vrn-B1c line was more productive than the Bez1Vrn-A1a Vrn-B1a line.

中文翻译：

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不同优势VRN等位基因及其组合对普通小麦品系发育阶段持续时间和生产力的影响

摘要

使用等位基因特异性引物和杂交分析，确定了来自Bezostaya 1（Bez1）品种的普通小麦品系中VRN和PPD基因座的等位基因组成。在携带VRN基因的不同优势等位基因的Bez1品种系及其组合中，检查了某些发育阶段的持续时间。结果表明，根据VRN-1基因座的两个优势等位基因（Bez1 Vrn-A1a Vrn-B1a和Bez1 Vrn-A1a Vrn-B1c）的组合，“分iller第一节”和“与最初的等基因系相比，“新芽－抽穗”时期在统计学上显着减少（i：Bez1Vrn-A1a，i：Bez1 Vrn-B1a和i：Bez1 Vrn-B1c）。此外，通过研究Bez1普通小麦品系的茎尖大小和形态动力学，可以看出，两个优势等位基因的存在导致器官发生阶段时间的减少。在Bez1品种的系中进行的生产力分析表明，i：Bez1 Vrn-B1c系的特征是在同基因系中生产力最高，而Bez1 Vrn-A1a Vrn-B1c系比Bez1 Vrn-A1a Vrn- B1a线。