小麦种质资源穗发芽抗性鉴定及相关基因分子标记有效性及其利用
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1.河南农业大学农学院/省部共建小麦玉米作物学国家重点实验室/河南粮食作物协同创新中心/国家小麦工程技术研究中心;2.河南丰德康种业股份有限公司;3.河南省焦作市种子站

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2022年度河南省重大科技专项(221100110700);河南省农业良种联合攻关项目(2022010102);河南省现代农业产业技术体系建设(HARS-22-01-G2);河南省科技研发计划联合基金(222103810002);2022年度河南省产业研发联合基金重大项目(225101610048);河南农业大学拔尖人才项目(30500678)


Identification of Pre?harvest Sprouting Resistance of Wheat Germplasm Resources and The Effectiveness of Molecular Markers of Related Genes and Their Utilization
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Major Science and Technology Projects in Henan Province (Grant No. 221100110700); Henan Province Agricultural Improved Breeds Joint Research Project (Grant No. 2022010102); Modern Agricultural Industry Technology System Construction Project of Henan Province (Grant No. HARS-22-01-G2); Henan Provincial Science and Technology R&D Plan Joint Fund (Grant No. 222103810002); The Top-Notch Talent Program (30500678).

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    摘要:

    为了鉴定小麦种质资源的穗发芽抗性,筛选出有效的抗穗发芽分子标记,挖掘优异白粒小麦抗穗发芽种质资源。本研究通过室内整穗发芽试验对222份小麦种质资源进行穗发芽抗性鉴定,并利用myb10D、DFR-B、Vp1B3、PM19-A1、MFT-3A、MFT-A2、MKK3-A和QSD1等8个抗穗发芽基因的功能分子标记对供试材料进行基因型检测。表型鉴定结果表明,222份小麦种质资源材料的室内相对穗发芽率存在显著差异,相对穗发芽率变化范围为0.00~1.15,平均相对穗发芽率为0.73,鉴定出抗穗发芽小麦材料38份,其中白粒小麦9份、红粒小麦27份、黑粒小麦2份。等位基因类型与室内相对穗发芽率相关性分析表明,功能标记myb10D、DFR-B、Vp1B3、MFT-3A和MFT-A2与相对穗发芽率呈极显著相关,而PM19-A1、MKK3-A和QSD1与小麦穗发芽抗性相关性不显著,说明myb10D、DFR-B、Vp1B3、MFT-3A和MFT-A2等分子标记可用作小麦抗穗发芽基因型检测和分子标记辅助育种。综合表现型和基因型结果,筛选出豫农914、豫农946、丰德存麦30、泛麦5号、徐麦029、连麦1901、保丰1903、郑麦829、13网27-8等9份抗穗发芽白粒小麦种质资源,可用于小麦抗穗发芽遗传育种和抗穗发芽品种布局。

    Abstract:

    In order to identify the pre-harvest sprouting resistance of wheat germplasm resources, effective molecular markers for pre-harvest sprouting resistance were screened and excellent white grain wheat germplasm resources for pre-harvest sprouting resistance were excavated. In this study, pre-harvest sprouting resistance of 222 wheat germplasm resources was identified by whole-pre-harvest sprouting test in laboratory, and the functional molecular markers of 8 anti-pre-harvest sprouting genes, including myb10D, DFR-B, Vp1B3, PM19-A1, MFT-3A, MFT-A2, MKK3-A, QSD1, were used to detect the genotypes of the tested materials. Phenotypic identification results showed that there were significant differences in the indoor relative pre-harvest sprouting rate of 222 wheat germplasm resources. The relative pre-harvest sprouting rate ranged from 0.00 to 1.15, and the average relative pre-harvest sprouting rate was 0.73. 38 wheat were identified as resistant to pre-harvest sprouting, including 9 white wheat, 27 red wheat and 2 black wheat. Correlation analysis between allele types and relative pre-harvest sprouting rate showed that functional markers myb10D, DFR-B, Vp1B3, MFT-3A and MFT-A2 were significantly correlated with relative pre-harvest sprouting rate, while PM19-A1, MKK3-A and QSD1 were not significantly correlated with sprout resistance. These results indicated that molecular markers myb10D, DFR-B, Vp1B3, MFT-3A and MFT-A2 could be used for detection of pre-harvest sprouting resistance and marker-assisted breeding. Based on the results of phenotypic and genotype detection, nine white wheat germplasm resources with pre-harvest sprouting resistance were selected, including Yunong 914, Yunong 946, FengDecunmai 30, Fanmai 5, Xumai 029, Lianmai 1901, Baofeng 1903, Zhengmai 829 and 13wang27-8, which could be used for genetic breeding and variety layout of wheat pre-harvest sprouting resistance.

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  • 收稿日期:2023-11-13
  • 最后修改日期:2023-12-27
  • 录用日期:2024-01-18
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