Figure 2.

The LSM2–8 complex differentially controls constitutive and alternative splicing in Arabidopsis plants exposed to low temperature and high salt conditions. (A) Quantification of altered splicing events (IR, ES, A5΄SS, A3΄SS) identified in lsm8-1 respect to WT plants under cold (4°C) or high salt (NaCl) conditions. The total number of different genes affected by the ensemble of altered splicing events identified is shown in parentheses. (B and C) Percentage of constitutively (CS) and alternatively spliced (AS) introns with increased retention in lsm8-1 plants exposed to cold (4°C) (B) or salt stress (NaCl) (C) relative to the total number of the corresponding introns identified in WT plants subjected to the same conditions. (D and E) Venn diagrams showing the overlap between the constitutively (D) and alternatively (E) spliced introns specifically retained in lsm8-1 with respect to WT plants under cold (4°C) or high salt (NaCl) conditions. The number of specific and common genes identified is indicated.