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Fig. 3 | BMC Plant Biology

Fig. 3

From: RAD-seq reveals genetic structure of the F2-generation of natural willow hybrids (Salix L.) and a great potential for interspecific introgression

Fig. 3

Boxplots of the plant height of backcrosses to S. purpurea (BC S.p.), backcrosses to S. helvetica (BC S.h.), and F2 hybrids (F1 x F1). Significant differences between groups are indicated by letters. The median is indicated by the black horizontal line. The bottom and top of the boxes show the 25 and 75 percentiles, respectively. The whiskers extend to the highest and lowest value that is not an outlier

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