The reporter learned from Qingdao Agricultural University that, the Purple scallops genome sequencing and analysis have been finished by the research team in the School of Marine Science and Engineering. This is the third finished genome sequencing of scallops in the human history after Japanese scallops and Chinese scallops. The team of Dr. Chunde Wang, commited to Purple scallops genome sequencing by combining the second and the third generation of gene sequencing methods, and obtained ４６３．１９Ｇ sequencing data, and found that the Purple scallop had 26256 genes, contained 40.63% repeat sequences .
Otherwise, the research team found that Purple scallops and Japanese scallops first came together into one group, then into one group with other bivalves, and then into the gastropoda species. Meanwhile, the purple scallops and Japanese scallops diverged since113.6 million years ago.
Dr. Chunde Wang introduced that, Purple scallops genome sequencing would be the basis of the analysis for the growth, breeding, lifetime of Purple scallops and hybrid scallops.
Scallops belong to bivalves, as ancient animal groups, which have existed 500 million years and survived many mass extinctions but still prosperous up to now. Scallops are the best models to research animals adaptation evolution as the extraordinary ability to adapt to circumstances. Purple scallops are middle size scallops which origin from Chile and Peru, and are the most cultured scallop varieties in local area.
Qingdao Agricultural University introduced Purple scallops from Peru in 2007, and crossbred them with American Bay scallops that are cultured in China, and bred the first generation of hybrid scallops which have significant advantages in growth, breeding, lifetime. Compared with common Bay scallops, the weight of hybrid scallops increased by about 100%, the largest one up to 206 grams.
“Bohai Sea Red” and “QN-2” were bred by Qingdao Agricultural University over ten years. Which have increased the coverage of good genetic breeding of Bay scallops and become the most cultured scallop varieties in Northern China.
(News from: Xinhua net)
