| 河南省小麦品种春化特性和光周期特性的研究 |
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| 引用本文： | 郑少萌,许为钢,方宇辉,李正玲,李春鑫,张 煜,齐学礼.河南省小麦品种春化特性和光周期特性的研究[J].麦类作物学报,2019(3):291-298. |
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| 作者姓名： | 郑少萌 许为钢 方宇辉 李正玲 李春鑫 张 煜 齐学礼 |
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| 作者单位： | (1.河南农业大学农学院，河南郑州 450002； 2.河南省农业科学院小麦研究所/小麦国家工程实验室/农业部黄淮中部小麦生物学与遗传育种重点实验室/河南省小麦生物学重点实验室，河南郑州 450002) |
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| 基金项目： | 国家重点研发计划项目（2016YFD0100102）；河南省重大科技专项（161100110500-0201）；河南省科技开放合作项目（162106000013）；国家小麦产业技术体系项目 |
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| 摘 要： | 以河南省20世纪40年代至今的30个小麦大面积栽培品种为材料,采用春化特性和光周期特性离析试验、田间幼穗分化进程观察的方法,对河南省小麦品种春化特性和光周期特性进行了分类和演化分析,并利用STS标记对供试品种的春化和光周期基因进行了检测。结果表明,在河南省70年来的小麦大面积品种演化中,存在着多种春化与光周期反应类型,但春化特性的演化表现为冬性程度由强减弱再增强的变化趋势;光周期特性敏感程度表现出逐渐降低的趋势。经分子标记检测,河南省70年来大面积推广品种的春化基因主要为 vrn-A1、 vrn-B1、 vrn-D1、 Vrn-D1b和 vrn-B3,光周期基因主要为 Ppd-A1a、 Ppd-D1a,但这些基因对春化特性和光周期特性的作用效果总体上尚不能准确反映品种的冬春性和光周期特性的实际情况,在育种工作中春化特性和光周期特性的选择与鉴定仍应以表型鉴定为主。
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| 关 键 词： | 小麦 春化特性 光周期特性 河南省 |
Vernalization Characteristic and Photoperiod Characteristics of Wheat Varieties in Henan Province |
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| ZHENG Shaomeng,XU Weigang,FANG Yuhui,LI Zhengling,LI Chunxin,ZHANG Yu,QI Xueli.Vernalization Characteristic and Photoperiod Characteristics of Wheat Varieties in Henan Province[J].Journal of Triticeae Crops,2019(3):291-298. |
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| Authors: | ZHENG Shaomeng XU Weigang FANG Yuhui LI Zhengling LI Chunxin ZHANG Yu QI Xueli |
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| Abstract: | In this study, analysis and evolutionary analysis were carried out concerning the vernalization and photoperiod response characteristics of 30 commercial wheat cultivars cultivated in Henan province from the 1940s to the present by segregation experiment of vernalization and photoperiod response characteristics as well as observation on the process of young spike differentiation in field. Simultaneously,vernalization gene and photoperiod gene in the tested varieties were detected by STS markers. The results showed that there were many types of vernalization and photoperiod response in the evolution of commercial wheat cultivars in Henan province in the past 70 years. However, evolution of vernalization characteristics showed a trend of decreasing and then increasing regarding its winterness degree; while the sensitivity of photoperiod response characteristic showed a gradual decreasing trend. At the same time, further discussion was performed on the breeding strategy of vernalization and photoperiod response characteristics in the area. The results of molecular marker analysis revealed that the vernalization gene and the photoperiod gene werevrn-A1, vrn-B1,vrn-D1,vrn-D1b and Ppd-A1a,Ppd-D1a in Henan Province, respectively. Nevertheless, the identification effect of these genes on vernalization and photoperiod response characteristics could not contribute to accurate reflection of the actual situation of winter-spring and photoperiod response characteristics of cultivars on the whole. Phenotype identification should be the predominant method for selection and identification of vernalization and photoperiod response characteristics in breeding. |
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