The polymers of wheat glutenins are studied here using asymmetric flow field flow fractionation (A4F). Molecular mass (Mw), gyration radius (Rw), and the polydispersity index (PI) of polymers were measured over a four-year, multi-local wheat trial in France. The experiment, involving 11 locations and 192 cultivars, offered the opportunity to approach the genetic and environmental factors associated with the phenotypic values of the polymer characteristics. These characteristics, which were all highly influenced by environmental factors, exhibited low broad-sense heritability coefficients and were not influenced by grain protein content and grain hardness. The 31 alleles encoding the glutenin subunits explained only 17.1, 25.4, and 16.8% of the phenotypic values of Mw, Rw, and PI, respectively. The climatic data revealed that a 3.5 °C increase between locations of the daily average temperature, during the last month of the grain development, caused an increase of more than 189%, 242%, and 434% of the Mw, Rw, and PI, respectively. These findings have to be considered in regard to possible consequences of global warming and health concerns assigned to gluten. It is suggested that the molecular characteristics of glutenins be measured today, especially for research addressing non-celiac gluten sensitivity (NCGS).

中文翻译：

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与小麦谷蛋白聚合物特性相关的遗传和环境因素。


本文使用不对称流场流动分级 (A4F) 研究小麦麦谷蛋白聚合物。在法国进行的为期四年的多地小麦试验中测量了聚合物的分子量 (Mw)、回转半径 (Rw) 和多分散指数 (PI)。该实验涉及 11 个地点和 192 个品种，为研究与聚合物特征表型值相关的遗传和环境因素提供了机会。这些性状受环境因素影响较大，广义遗传力系数较低，且不受籽粒蛋白质含量和籽粒硬度的影响。编码麦谷蛋白亚基的 31 个等位基因分别仅解释了 Mw、Rw 和 PI 表型值的 17.1%、25.4% 和 16.8%。气候数据显示，在粮食发育的最后一个月，各地区日平均气温升高3.5°C，导致Mw、Rw和PI分别增加189%、242%和434%以上， 分别。这些发现必须考虑到全球变暖可能产生的后果以及与麸质有关的健康问题。建议立即测量麦谷蛋白的分子特征，特别是对于解决非腹腔麸质敏感性（NCGS）的研究。