Identification and analysis of the jnk1 gene in polyploid hybrids of red crucian carp (Carassius auratus red var.) and common carp (Cyprinus carpio L.)
c-Jun N-terminal kinase (JNK) is an important member of the mitogen-activated protein kinase superfamily. The allotetraploid crucian carp is a product of distant hybridization of female red crucian carp with male common carp. It is the first natural case of an allotetraploid with stable genetic characters, including fertility of both female and male animals.