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约旦野生二棱大麦群体籽粒休眠特性的网络分析 被引量：3

The Network Analysis on Characters of Caryopsis Dormancy in Wild Barley (Hordeum spontaneum) Populations from Jordan
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摘要 本研究以来自约旦的16个野生二棱大麦群体206个基因型为材料,对籽粒不同部分的氮素营养相关性状以及40℃下不同贮藏时间后的萌发率进行了测定,并利用网络相关性技术分析其与起源地生态地理因素之间的相关性。结果表明,来自于不同地区的大麦群体在种子含氮量、壳含氮量、种子可溶性蛋白质含量、单粒重及单壳重上存在明显差异,并且籽粒不同部位含氮量发生分配平衡,种子含氮量较高的群体壳含氮量较低。同时,网络相关性分析证实壳含氮量与籽粒萌发特性呈显著负相关,而壳中潜在抑制萌发的含氮物可能在42 d的高温储藏下分解或失活。 In this study, 206 genotypes of wild barley （Hordeum spontaneum） with 16 populations derived from different habitats of Jordan were studied for caryopsis nitrogen-related traits and germination characters under different storage time at 40 ℃. Also the correlations between those traits and eco-geographic factors were analyzed by correlation-based network analysis （CNA）. The results showed that there are significant differences among the populations on the traits of seed nitrogen concentration, shell nitrogen concentration, seed soluble-protein concentration, single seed weight and single shell weight. The nitrogen trade-off occurred between the organs of seed and shell which makes the populations with high seed nitrogen concentration associated with low shell nitrogen concentration. Meanwhile, the results of CNA suggest the shell nitrogen concentration sig- nificantly negative-correlated with the germination characters of caryopsis, and the putative inhibitors in shell could be degraded or inactivated after the 42 days of storage at 40 ℃.
作者 文玲玲 薛文韬 严俊 赵钢 程剑平
机构地区 贵州大学麦作研究中心 成都大学生物产业学院
出处 《植物生理学报》 CAS CSCD 北大核心 2014年第8期1227-1237,共11页 Plant Physiology Journal
基金 贵州省国际科技合作计划项目[黔科合外G字(2012)7011] 四川省国际科技合作与交流研究计划项目(12GH0093) 国家科技部国际科技合作专项(S2013ZR0452)
关键词 野生二棱大麦 籽粒休眠 氮素营养 生态地理因素 Hordeum spontaneum caryopsis dormancy nitrogen nutrition eco-geographic factor
分类号 S512.3 [农业科学—作物学]
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参考文献28

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共引文献63

同被引文献35

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二级引证文献4

植物生理学报
2014年 第8期

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