Method for breeding new golden-shell crassostrea gigas strain

Abstract

The invention discloses a method for breeding a new golden-shell crassostrea gigas strain. The method is characterized by including the operating steps of (1) breeding the first generation: selecting wild parent crassostrea gigas with golden left shells, and creating a plurality of families without genetic relationships; (2) breeding the second generation: selecting the families with the obvious golden-shell characters from the created first-generation families, and screening out the crassostrea gigas with the golden left shells and the golden right shells to carry out inner-family inbreeding; (3) breeding the third generation: carrying out inter-family hybridization on the families, with the left shells and the right shells being in the golden characters, obtained from the created second-generation families; (4) breeding the fourth generation: carrying out stability verification on the families with the left shells and the right shells being in the golden characters. According to the method, the breeding process of the new crassostrea gigas shell-color strain is accelerated, and new products of bred shellfishes are increased; the product additional value is increased through the color characters, the breeding yield is improved through the growth characters, incomes of breeding enterprises and farmers are increased, and the market prospects are broad.

Description

technical field [0001] The invention relates to a technology of family selection breeding in shellfish genetic breeding, in particular to a method for selection and breeding of a new strain of oyster with golden shell. Background technique [0002] long oysters ( Crassostrea gigas ), also known as Pacific oyster, belongs to the phylum Molluscs, Phallobranches, Pearl Oysters, Oysteridae, and the genus Giant Oyster. It has two shells on the left and right, the right shell is small and flat, and the shell surface has water-like encircling scales, which are sparsely arranged. The left shell is the attachment surface, which is large and thick, irregular in shape, deep in the depression, and the scales are arranged closely. It uses the top of the shell to grow on rocks or artificial attachment bases. The inner surface of the shell is white, the adductor muscle scar is large, and the edge of the mantle is mostly black. [0003] Long oysters are tender and can be eaten fresh or d...

AI Technical Summary

Problems solved by technology

There is no report on the cultivation method of fast-growing golden long oyster during the selection and culture of long oyster