Fig. 2From: Genome-wide identification of the MADS-box transcription factor family in autotetraploid cultivated alfalfa (Medicago sativa L.) and expression analysis under abiotic stressPhylogenetic trees of alfalfa and Arabidopsis MADS-box proteins constructed in MEGA-X using the neighbor-joining method. The tree is divided into four groups, indicated by different colors. The blue star and red triangle shapes represent Arabidopsis and alfalfa MADS-box genes, respectivelyBack to article page