Figure 3From: MAP-ping genomic organization and organ-specific expression profiles of poplar MAP kinases and MAP kinase kinasesIntron and exon organization of poplar MAPK genes (PtMPKs). Introns and exons are represented by black lines and colored boxes respectively. The length in base pairs of each intron and exon is also indicated. Numbers between brackets correspond to the intron phase. PtMPKs have been grouped according to phylogenetic classification [39].Back to article page