黄淮北片主栽小麦品种冬春性与主要春化基因组成的关系

发布时间：2018-06-08 04:16

本文选题：小麦 + 黄淮北片　；参考：《麦类作物学报》2016年11期

【摘要】：为探明我国黄淮北片麦区冬小麦的冬春性与春化基因分布的关系,以该麦区的48个主导小麦品种为材料,依据不同小麦品种的低温春化需求来分析品种的冬春特性,同时分析了主要的春化基因分子标记在上述品种中的组成。结果表明,黄淮北片麦区以半冬性品种为主,占75.0%,春性品种和冬性品种各占10.4%,弱春性品种占4.2%。春化基因检测结果显示,黄淮北片麦区的主栽小麦品种的主要基因型为vrnA1/vrn-B1/vrn-D1/vrn-B3,占77.1%,其余品种含有Vrn-D1基因(22.9%,11个),未发现携带显性基因VrnA1、Vrn-B1及Vrn-B3的品种。黄淮北片主栽品种调查结果显示,根据vrn-A1/vrn-B1/vrn-B3/vrn-D1全隐性基因型推测的品种的冬性和表现型的一致性高达97.3%,根据显性基因Vrn-D1推测的春性与表现型的一致性为54.5%。总的来说通过春化基因组成推测的冬春性与根据低温需求鉴定的冬春性的一致性为87.5%,表明可以通过检测春化基因分子标记来对品种的冬春性进行快速推测,实际工作中若能利用春化基因分子检测与田间观察相结合,可以更准确地反映品种的冬春性。
[Abstract]:In order to find out the relationship between winter spring and vernalization gene distribution of winter wheat in Huang-Huaibei region of China, 48 dominant wheat varieties in this area were used as materials to analyze the winter and spring characteristics of different wheat varieties according to the requirements of low temperature vernalization. At the same time, the composition of the main vernalization gene molecular markers in the above varieties was analyzed. The results showed that semi-winter varieties were dominant in Huang-Huaibei Plain wheat area (75.0%), spring varieties 10.4% and winter varieties 10.4%, weak spring varieties 4.2%. The results of vernalization gene analysis showed that the main genotypes of the main wheat cultivars in Huang-Huaibei region were vrnA1 / vrn-B1 / vrn-D1 / vrn-B3 (77.1%). The other cultivars contained Vrn-D1 gene 22.992, and 11 cultivars. No cultivars with dominant genes VrnA1Vrn-B1 and Vrn-B3 were found. The results showed that the winter and phenotypic consistency of vrn-A _ 1 / vrn-B _ 1 / vrn-B _ 3 / vrn-D1 total recessive genotypes were 97.3x and 54.5% respectively according to the dominant gene Vrn-D1. In general, the consistency of winter and spring based on the component of vernalization gene was 87.5, which indicated that the winter spring could be quickly inferred by detecting the molecular markers of vernalization gene. If the vernalization gene molecular detection can be combined with field observation in practical work, the winter and spring character of the variety can be more accurately reflected.
【作者单位】：石家庄市农林科学研究院;中国科学院遗传与发育生物学研究所农业资源研究中心;
【基金】：农业部公益性行业(农业)科研专项(201203033-06) 国家现代农业(小麦)产业技术体系项目(nycytx-03)
【分类号】：S512.1

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