2 results about "Argopecten purpuratus" patented technology

The present invention provides a method for preparing allodiploid scallops, which is to screen for all-female individuals among the hybrid offspring of Argopecten irradians (♀) and Argopecten purpuratus (♂), fertilize the eggs of the all-female individuals with the sperm of Argopecten irradians, and cultivate the fertilized eggs to obtain allodiploid scallops; the screening is to screen for all-female individuals with a ratio of the nuclear genome derived from Argopecten irradians to the nuclear genome derived from Argopecten purpuratus in the genome higher than 1.5. The method of the present invention is different from the currently mainstream methods of inhibiting the release of polar bodies of diploid fertilized eggs by chemical reagents, salinity adjustment, cold and heat shock, etc., and the method of obtaining triploid offspring by crossing tetraploid and diploid parent scallops, and has opened up a brand-new allodiploid scallop breeding technology.

The present application belongs to the technical field of preparation of excellent commercial seed of economic marine shellfish, and particularly relates to a high-efficiency method for preparing interspecific three-way hybrid of Argopecten genus scallop. The method uses a selected and purified male sterile and female fertile hybrid Argopecten mactrolineatus as a female parent, and a restocked Argopecten purpuratus as a male parent, to produce a "Argopecten mactrolineatus Argopecten purpuratus" three-way hybrid scallop commercial seed with hybrid vigor and outstanding stress resistance. The method can realize large-scale, continuous and efficient hybrid seed production, and has the advantages of simple operation, labor saving, low dependence on personnel, and the like. The hybridization rate is increased from less than 30% in the prior art to more than 90%, and the efficiency of interspecific hybrid seed production and the purity of the seed of the protandrous Argopecten genus scallop are significantly improved.