Figure 4From: Complete mitochondrial DNA sequence of oyster Crassostrea hongkongensis-a case of "Tandem duplication-random loss" for genome rearrangement in Crassostrea?Nucleotide usage frequency of three Crassostrea species with Mytilus edulis as a reference. Ch: Crassostrea hongkongensis, Cg: C. gigas, Cv: C. virginica and Me: M. edulis.Back to article page