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首页 > 过刊浏览>2026年第27卷第3期 >478-490. DOI:10.13430/j.cnki.jpgr.20251013001 优先出版
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小麦抗穗发芽优异资源鉴定及抗性与农艺性状关联分析
DOI:
10.13430/j.cnki.jpgr.20251013001
CSTR:
作者:
作者单位:

1长江大学农学院,湖北荆州 434025;2湖北省农业科学院粮食作物研究所/粮食作物遗传改良与种质创新湖北省重点实验室/ 农业农村部作物分子改良重点实验室,武汉 430064;3中国农业科学院作物科学研究所,北京100081

作者简介:

研究方向为小麦种质资源穗发芽抗性鉴定,E-mail: 3210787997@qq.com

通讯作者:

陈 泠,研究方向为小麦遗传育种,E-mail: LingChen@hbaas.com
张锦鹏,研究方向为小麦种质资源创制,E-mail: zhangjinpeng@caas.cn
方正武,研究方向为作物种质资源创新与利用,E-mail: fangzhengwu88@163.com

中图分类号:

基金项目:

农业农村部种业管理司小麦种质资源精准鉴定项目(19221924,19230609,19240573,22250524);国家小麦产业技术体系武汉综合试验站(CARS-03);湖北省重点研发专项(2024BBB004);湖北省自然科学基金创新研究群体项目(2025AFA047);湖北省农业科技创新中心创新团队项目(2025-620-000-001-04);湖北省支持种业高质量发展资金项目(HBZY2023B002-1)


Identification of Excellent Wheat Resources with Resistance to Pre-harvest Sprouting and Association Analysis between Resistance and Agronomic Traits
Author:
Affiliation:

1College of Agriculture, Yangtze University, Jingzhou 434025, Hubei;2Institute of Food Crops, Hubei Academy of Agricultural Sciences /Food Crop Germplasm and Genetic Improvement of Hubei Key Laboratory /Key Laboratory of Crop Molecular Breeding of Ministry of Agriculture and Rural Affairs, Wuhan 430064;3Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081

Fund Project:

Foundation projects: Precision Identification Project for Wheat Germplasm Resources of the Seed Industry Management Division of the Ministry of Agriculture and Rural Affairs (19221924, 19230609, 19240573, 22250524); National Wheat Industry Technology System Wuhan Comprehensive Experimental Station (CARS-03); Key-Area Research and Development Program of Hubei Province(2024BBB004); Innovative Research Group Project of the Natural Science Foundation of Hubei Province (2025AFA047); Innovation Team Project of the Hubei Agricultural Science and Technology Innovation Center (2025-620-000-001-04); Fund Project for Supporting High-quality Development of the Seed Industry in Hubei Province (HBZY2023B002-1)

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    摘要:

    为了筛选抗穗发芽小麦种质资源,并探究影响小麦穗发芽抗性的因素,以1069份小麦种质资源为研究群体,开展了为期两年的穗发芽抗性鉴定,并对其与农艺性状间的相关性进行了分析。穗发芽抗性比较和穗发芽抗性等级分布表明,1069份种质高感占比52.9%;白粒种质抗性等级达中抗及以上水平的种质(简称抗性种质)占比仅5.6%,高感占比达79.5%;红粒种质的抗性种质占比为29.9%,高感占比为47.0%,说明红粒种质的穗发芽抗性显著强于白粒种质;地方种质中的抗性种质占比29.7%,约为选育种质、国外种质抗性种质的2倍,说明地方种质的穗发芽抗性显著优于国外种质和选育种质。北部冬麦区样本量较少(仅6份),其结果仅供参考,其他9个麦区小麦种质穗发芽抗性等级分布各异,其中6个麦区以高感种质为主,占比36.8%~76.7%,抗性种质占比为7.6%~39.6%,长江中下游冬麦区和华南冬麦区抗性种质占比均达40%,穗发芽抗性表现相对较强。穗发芽抗性与农艺性状的相关性分析显示,穗发芽抗性与株高、粒色均呈极显著正相关,与粒长、粒宽和千粒重均呈极显著负相关,与小穗数、播种至抽穗天数及播种至成熟天数均呈极显著相关,但其相关性方向(正负)受环境影响,所有相关性强度均较弱(相关系数绝对值|r|≤0.39)。通过筛选,获得了11份红粒高抗穗发芽种质和3份白粒抗穗发芽种质。本研究结果为了解小麦种质资源穗发芽抗性特点及小麦穗发芽抗性影响因素提供了理论依据,所筛选的抗穗发芽种质可为小麦穗发芽抗性研究及育种工作提供重要的抗性资源。

    Abstract:

    To screen germplasm resources resistant to wheat pre-harvest sprouting (PHS) and explore the factors influencing wheat PHS resistance, this study conducted a two-year evaluation of PHS resistance using 1069 wheat germplasm resources. Additionally, the correlation between PHS resistance and agronomic traits was analyzed. Comparisons of PHS resistance and the distribution of PHS resistance levels revealed that a predominant proportion (52.9%) of the 1069 germplasm resources were highly susceptible. Among white-grained germplasm, the proportion of resistant germplasm with a resistance level of moderate-to-high was merely 5.6%, while the proportion of highly susceptible germplasm reached 79.5%. In contrast, among red-grained germplasm, 29.9% were resistant and 47.0% were highly susceptible, indicating significantly stronger PHS resistance in red-grained germplasm compared to white-grained germplasm. Among landraces, resistant germplasm accounted for 29.7%, which was approximately twice that of cultivars and foreign germplasms, demonstrating that landraces exhibited significantly superior PHS resistance compared to foreign germplasms and Chinese cultivars. The results of the Northern Winter Wheat Region are for reference only due to insufficient sample size (only six samples). The distribution of PHS resistance levels varied across the other nine wheat regions. Six of these regions were primarily composed of highly susceptible germplasm, with proportions ranging from 36.8% to 76.7%, and resistant germplasm accounting for 7.6% to 39.6%. Notably, in the Middle and Lower Yangtze Valley Winter Wheat Region, and the South China Winter Wheat Region, the proportion of resistant germplasm reached 40%, demonstrating relatively superior PHS resistance. The correlation analysis between PHS resistance and agronomic traits revealed a highly significant positive correlation between PHS resistance and plant height as well as grain color, while a highly significant negative correlation was observed with grain length, grain width, and thousand-grain weight. PHS resistance also showed highly significant correlations with spikelet number, days from sowing to heading, and days from sowing to maturity, the directional (positive/negative) associations of these traits were environment-dependent. All correlation strengths are relatively weak (with the absolute value of the correlation coefficient |r|≤0.39). Through screening, a total of 11 red-grained germplasms exhibiting high resistance to PHS and 3 white-grained germplasms demonstrating resistance to PHS were identified. The findings of this study provide a theoretical basis for understanding the characteristics of wheat germplasm resources in terms of PHS resistance and the factors influencing wheat PHS resistance. The screened germplasms that exhibit resistance to PHS could serve as important resistance resources for research on wheat PHS resistance and breeding programs.

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高前进,朱展望,刘易科,等.小麦抗穗发芽优异资源鉴定及抗性与农艺性状关联分析[J].植物遗传资源学报,2026,27(3):478-490.

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  • 收稿日期:2025-10-13
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  • 在线发布日期: 2026-03-13
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