Differential regulation of two 1-aminocyclopropane-1-carboxylate oxidase (ACO) genes, including the additionally cloned DcACO2, during senescence in carnation flowers

•A homolog of ACO gene was cloned and designated it DcACO2.•The predicted protein of DcACO2 was highly homologous to DcACO1 protein.•The expression of DcACO2 was relatively high in style, but was low in petals.•Ethylene and ACC treatments increased DcACO1 expression, but not DcACO2 expression.•The e...

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