Identification and Analysis of DHN Gene Family in Potato
Dehydrin(DHN),as a highly hydrophilic protein,plays important roles in plant response to various biological and abiotic stresses.In this study,seven StDHN genes were identified in potato genome,which were unevenly distributed on three chromosomes,encoding 80 to 243 amino acids,and had one intron.The molecular weight of StDHNs ranged from 8.54 to 25.12 kDa and the isoelectric point ranged from 5.24 to 7.38.There were three conserved motifs,and the analysis of conserved motifs and their evolutionary relation-ships indicated that members of the StDHN family were highly conserved in evolution.The results of transcrip-tional expression analysis showed that StDHN5,StDHN6 and StDHN7 were significantly highly expressed under specific stress.The results of induced expression pattern analysis showed that StDHN5 and StDHN6 were sig-nificantly induced by salt and ABA stress,while StDHN7 responded to drought stress.These results could pro-vide scientific basis for further study on the function of potato DHN gene family and their application in stress resistance.
万方数据
维普
