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Fig. 1 | BMC Genetics

Fig. 1

From: Genetic basis of nitrogen use efficiency and yield stability across environments in winter rapeseed

Fig. 1

Clustering of the environments based on phenotypic traits. Clustering analysis was performed on the WOSR-69 (a) and AM-DH (b) populations. The projection of the individuals on the first two principal components is presented in the left chart, with individuals colored according to the environment to which they belong. Clusters were defined via hierarchical clustering analysis. Each cluster is characterized by one or several constituent environments (a, Env.), the proportion of each environment in the cluster (b, Clu./Env., expressed as %), and the differences in trait values between the mean of each environment in the cluster and the general mean (c, values given for the different traits evaluated in this study). The trait abbreviations (DTF, SY, SN, TSW, O, Pr, and O/Pr) and units are described in the Methods section

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