Fig. 1

a A picture of the Hong Kong oyster Magallana hongkongensis; b Table summarising the statistics of the genome assembly for M. hongkongensis; c Hi-C information for M. hongkongensis. The x- and y- axes illustrate the mapping positions of the first and second read respectively in each read pair, grouped into bins. The colour of each square illustrates the number of read pairs within that bin. White vertical and black horizontal lines have been added to show the borders between scaffolds. Scaffolds less than 1 Mb are excluded; d Orthologous proteins comparison between all mollusc genomes. Abbreviations: Adu: Architeuthis dux; Bgl: Biomphalaria glabrata; Bpl: Bathymodiolus platifrons; Cgi: Crassostrea gigas; Cvi: Crassostrea virginica; Hdi: Haliotis discus; Lgi: Lottia gigantea; Lny: Lanistes nyassanus; Mco: Marisa cornuarietis; Mho: Magallana hongkongensis; Mph: Modiolus philippinarum; Mye: Mizuhopecten yessoensis; Obi: Octopus bimaculoides; Pca: Pomacea canaliculata; Pfu: Pinctada fucata; Pma: Pomacea maculata; Rau: Radix auricularia; Sgl: Saccostrea glomerata