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首页> 外文期刊>Russian journal of genetics >Genetic analysis of the traits introgressed from Aegilops speltoides Tausch to bread wheat and determined by chromosome 5A genes
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Genetic analysis of the traits introgressed from Aegilops speltoides Tausch to bread wheat and determined by chromosome 5A genes

机译：遗传特征分析从Segtops speltoides Tausch渗入面包小麦并由5A染色体基因确定

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摘要

A winter bread wheat accession from the Arsenal collection was genetically examined to study the results of introgression, which substantially changed the physiological and morphological traits of the original spring cultivar Rodina. Apart from its winter habit, the accession was characterized by awned speltoid spikes, suggesting introgression into chromosome 5A, which carries marker genes in the order Vrn-A1-Q-B1. Genetic analysis showed that the chromosome fragment introgressed from Aegilops speltoides recombined well with the homeologous region of bread wheat chromosome 5A in the region between the Vrn-A1 and Q genes. Recombination between the Vrn-A1 and B1 genes was not detected, and it was assumed that the order of the marker genes of chromosome 5A was inverted to produce Q-Vrn-A1-B1. When the winter introgression line was crossed with Triticum spelta L., an interaction of two dominant genes determining the spike character was for the first time detected in F-1, increasing the spike length and the number of spikelets, and followed with transgression in F-2. It was assumed that Ae. speltoides had a homeoallelic speltoid gene, which was designated as Q (S) .
机译：对来自阿森纳（Arsenal）集合的冬小麦进行了基因检查，以研究基因渗入的结果，这大大改变了原始春季栽培品种罗迪娜的生理和形态特征。除冬季习性外，该种的特征还在于有芒状的刺状尖刺，这表明它渗入了5A染色体，该染色体携带着Vrn-A1-Q-B1顺序的标记基因。遗传分析表明，从茎线虫（Aegilops speltoides）渗入的染色体片段与面包小麦染色体5A的同源区在Vrn-A1和Q基因之间的区域重组良好。未检测到Vrn-A1和B1基因之间的重组，并且假定染色体5A的标记基因的顺序颠倒以产生Q-Vrn-A1-B1。当冬季渗入系与黑麦杂交时，首次在F-1中检测到两个决定穗特征的显性基因的相互作用，这增加了穗的长度和小穗的数量，随后在F中越界-2。假设是Ae。 speltoides有一个同种异体的speltoid基因，被命名为Q（S）。

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