Figure 3.

Phylogenetic tree of nTNL subclass NBS genes based on conserved NBS domain sequences. A total of 842 nTNL subclass NBS sequences were used: 202 sequences from M. truncatula (shown in red), 131 from pigeon pea (blue), 216 from common bean (orange), 234 from soybean (green), and 59 from Arabidopsis (At; black). Two TNL sequences from Arabidopsis (purple) were used as an outgroup. The reconstructed nTNL phylogeny is divided into 23 nTNL-rosid NBS gene families and 64 nTNL-legume NBS gene families (see “Materials and Methods”). The presence of Arabidopsis or legume sequences in nTNL-rosid families is indicated with check marks. The scale bar represents the number of nucleotide substitutions per site. The support values (SH-aLRT values) for basal nodes are indicated.