Differential transcript abundance analyses performed on six pairs of field-manipulated samples (UV-filtered and UV-transmitted) revealed a total of 6,885 genes in the twelve transcriptomes. In the transcript PCA, the two field treatments (UV-filtered and UV-transmitted) did not separate along PC1, which explained 41% of the variation, nor PC2, which explained 24% (Fig. 7). However, the pairs tended to cluster near each other along these two PC axes. After filtering for an absolute LFC of at least one, nineteen genes were identified as significantly differentially abundant between field treatments (-adj < 0.005; Table 7, Fig. 8).