Frequency of splice site selection under Pb stress. (A,B) Frequency of splice site selection in total AS events and Pb-affected DAS events and frequency of splice site selection in total AS events and Pb-affected DAS events in Group 2. (C,D) Frequency of splice site selection in total AS events and Pb-affected DAS events and frequency of splice site selection in total AS events and Pb-affected DAS events in Group 3. Group 1, CK shoots versus CK roots; Group 2, Pb roots versus CK roots; Group 3, Pb shoots versus CK shoots; Group 4, Pb shoots versus Pb roots; CK, control sample grown in the absence of Pb; Pb, sample grown in the presence of Pb.
