Identification of mega-environments in Europe and effect of allelic variation at maturity E loci on adaptation of European soybean
Identification of mega-environments in Europe and effect of allelic variation at maturity E loci on adaptation of European soybean
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DOI：
10.1111/pce.12896
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发表时间：
2017-05-01
影响因子：
7.3
通讯作者：
Wuerschum, Tobias
中科院分区：
文献类型：
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作者：
Kurasch, Alena K.;Hahn, Volker;Wuerschum, Tobias
大豆种植对欧洲的可持续农业具有巨大潜力，但适应仍然是一个核心问题。在这项大型大环境（MEV）研究中，来自5个早熟组（MGs 000-II）的75个欧洲品种在欧洲10个国家的22个地点进行了成熟度相关性状的评估。基于表型相似性的位置聚类显示，在纬度方向上有6个MEVs，并建议增加几个。成熟度分析确定了几组具有表型相似性的品种，这些品种最适合欧洲不同的种植地区。我们确定了E1，E2，E3和E4基因的等位基因变体的几种单倍型，每个E单倍型包括来自不同MG的品种。具有相同E单倍型的品种可以表现出不同的开花和成熟特性，这表明这些性状的遗传控制更加复杂，适应涉及额外的遗传途径，例如温度要求。总之，我们的研究允许在欧洲大豆种植区的第一个统一的评估，并说明了大豆的适应和MEV分类的光周期的强烈影响，以及在欧洲大豆适应的E成熟位点的影响。
Soybean cultivation holds great potential for a sustainable agriculture in Europe, but adaptation remains a central issue. In this large mega-environment (MEV) study, 75 European cultivars from five early maturity groups (MGs 000-II) were evaluated for maturity-related traits at 22 locations in 10 countries across Europe. Clustering of the locations based on phenotypic similarity revealed six MEVs in latitudinal direction and suggested several more. Analysis of maturity identified several groups of cultivars with phenotypic similarity that are optimally adapted to the different growing regions in Europe. We identified several haplotypes for the allelic variants at the E1, E2, E3 and E4 genes, with each E haplotype comprising cultivars from different MGs. Cultivars with the same E haplotype can exhibit different flowering and maturity characteristics, suggesting that the genetic control of these traits is more complex and that adaptation involves additional genetic pathways, for example temperature requirement. Taken together, our study allowed the first unified assessment of soybean-growing regions in Europe and illustrates the strong effect of photoperiod on soybean adaptation and MEV classification, as well as the effects of the E maturity loci for soybean adaptation in Europe.