Figure 1
From: Genome-wide analysis of Aux/IAA and ARF gene families in Populus trichocarpa
Chromosomal positions of PoptrIAA and PoptrARF genes. Scale represents a 5 Mb chromosomal distance. Colors indicate the chimeric nature of most linkage groups. Common colors refer to homeologous genome blocks, presumed to have arisen from the salicoid genome duplication 65 Mya and shared by two chromosomes [13]. Chromosome numbers (linkage group number I-XIX) and sizes (Mb) are indicated at the bottom end of each chromosome. PoptrIAA and PoptrARF genes are represented in blue and black font colors, respectively. 4 PoptrIAA and 11 PoptrARF genes reside on unassembled scaffolds (See Additional file 1).