Superoxide dismutase (SOD) proteins are crucial antioxidant enzymes that play critical roles in plant growth， development， and response to various abiotic stresses. The gene family has been characterized in various plant species， but not in yet. Here， a total of 7 genes were first identified from the whole genome of ， including 1 ， 2 ， and 4 /， which are unevenly distributed in five out of the eight chromosomes. Phylogenetic analysis showed that SOD proteins from and other plant species could be classified into two main categories (Cu/ZnSODs and Fe-MnSODs)， which could be further divided into eight subgroups， and members within the same subgroup tended to share the same subcellular local... More
Superoxide dismutase (SOD) proteins are crucial antioxidant enzymes that play critical roles in plant growth， development， and response to various abiotic stresses. The gene family has been characterized in various plant species， but not in yet. Here， a total of 7 genes were first identified from the whole genome of ， including 1 ， 2 ， and 4 /， which are unevenly distributed in five out of the eight chromosomes. Phylogenetic analysis showed that SOD proteins from and other plant species could be classified into two main categories (Cu/ZnSODs and Fe-MnSODs)， which could be further divided into eight subgroups， and members within the same subgroup tended to share the same subcellular localization. In addition， genes together with and within the same subgroup also displayed similar motif compositions and exon-intron structures. Most genes were ubiquitously expressed in various tissues， particularly in leaves， seeds and root nodules at different developmental stages. Moreover， microarray analysis and high-throughput sequencing showed that most genes were differentially expressed under salt， drought， and cold treatments， indicating their pivotal roles in stress response of . These findings provide useful information for the functional characterization of family genes for growth， development， and stress response of .
