Identification of COR413 Gene Family in Peach and Its Expression in Low Temperature and LTC Treatment at Postharvest

Peach were susceptible to chilling injury during low temperature (0 o C) storage at postharvest, and LTC (Low conditioning) treatment could reduce such as of H 2 O  production fruit browning. In order to study the function of peach COR413  in regulation postharvest in ‘Beijing No. 9’, four COR413 gene family members identified based on genome database, namely  PpCOR1 ~ PpCOR4 . Phylogenetic analysis showed that four PpCORs be clustered into two subfamilies. PpCOR1 PpCOR3  belonged first subfamily, most this subfamily located plasma membrane.  belongs second its are mainly thylakoid The cis-acting elements  promoter  contained abundant abiotic stress responsive hormone as jasmonate abscisic acid. results gene expression was induced by while repress induction  by temperature. Interestingly,  was positively correlated with change  content peach, which indicated PpCOR 3 involved fruit. This result provides a theoretical basis for quality maintenance well breeding cold resistant varieties.