Breeding method of pinctada martensi black-shell strain for sea pearl cultivation

Abstract

The invention relates to a breeding method of a pinctada martensi black-shell strain for sea pearl cultivation and belongs to the technical field of pearl breeding. The breeding method includes taking two geographical populations, namely the wild population of Lingshui of Hainan and the cultured population of Leizhou of Beibuwan as the breeding base populations, selecting high-quality individualities as crossing parents from the two populations , breeding progeny by means of reciprocal cross and selfing of different geographical populations, and selecting the progeny of the combination of 'leizhou *lingshui' with remarkable growth superiority from the progeny to perform enclosed breeding of population so as to obtain a certain amount of the pinctada martensi black-shell strain with obvious feature of black shells, good economic character and stable heritability. The breeding method has the advantages of feasible principle, simple processes and low production cost, can improve the survival rate, growth rate, pearl quality and output of the pinctada martensi greatly, and accordingly can improve sustainable development of the national sea pearl cultivation field.

Description

technical field

[0001] The invention belongs to a method for breeding new animal varieties, in particular to a method for breeding seawater pearls of Pinctada martensii black-shell strains. Background technique

[0002] Pinctada martensii belongs to the mollusk phylum, bivalves, pearl oyster order, pearl oyster family, pinnacle oyster species, and is an important species used to produce seawater pearls. In China, it is distributed in Guangdong, Guangxi, Hainan and the southern coast of the Taiwan Strait, and it is also distributed in Japan. In the 1960s, China became an exporter of cultured pearls from Pinctada martensii (commonly known as "South Pearls"). It is internationally recognized that the quality of Pearls produced in China is second to none in the world. In the 1990s, the output of "South Pearls" jumped to the top in the world. However, in recent years, as the germplasm of Pinctada martensii has deteriorated, the quality and output of pearls have declined year by ...

Examples

Embodiment

[0045] 1. Determine breeding goals and programs

[0046] Breeding goal: use black shell color as the genetic marker, and use large shell height, large shell width, large weight, and high survival rate as the breeding objectives to breed obvious morphological characteristics, excellent economic traits, stable genetic performance, and can be used to breed high-yield and high-quality seawater. A new variety of pearl oyster;

[0047] Breeding program: Two geographical populations in China, namely Lingshui wild population in Hainan and Leizhou cultured population in Beibu Gulf, were used to take advantage of the wild population's high heterozygosity and rich diversity and the advantages of the cultured population adapting to the artificial breeding environment. The target traits of the breeding are selected at a certain intensity, and then the F1 generation is cultivated by reciprocal hybridization and self-crossing. By comparing the target traits of the F1 generation, the offsprin...

technical field

[0001] The invention belongs to a method for breeding new animal varieties, in particular to a method for breeding seawater pearls of Pinctada martensii black-shell strains. Background technique

[0002] Pinctada martensii belongs to the mollusk phylum, bivalves, pearl oyster order, pearl oyster family, pinnacle oyster species, and is an important species used to produce seawater pearls. In China, it is distributed in Guangdong, Guangxi, Hainan and the southern coast of the Taiwan Strait, and it is also distributed in Japan. In the 1960s, China became an exporter of cultured pearls from Pinctada martensii (commonly known as "South Pearls"). It is internationally recognized that the quality of Pearls produced in China is second to none in the world. In the 1990s, the output of "South Pearls" jumped to the top in the world. However, in recent years, as the germplasm of Pinctada martensii has deteriorated, the quality and output of pearls have declined year by ...

Examples

Embodiment

[0045] 1. Determine breeding goals and programs

[0046] Breeding goal: use black shell color as the genetic marker, and use large shell height, large shell width, large weight, and high survival rate as the breeding objectives to breed obvious morphological characteristics, excellent economic traits, stable genetic performance, and can be used to breed high-yield and high-quality seawater. A new variety of pearl oyster;

[0047] Breeding program: Two geographical populations in China, namely Lingshui wild population in Hainan and Leizhou cultured population in Beibu Gulf, were used to take advantage of the wild population's high heterozygosity and rich diversity and the advantages of the cultured population adapting to the artificial breeding environment. The target traits of the breeding are selected at a certain intensity, and then the F1 generation is cultivated by reciprocal hybridization and self-crossing. By comparing the target traits of the F1 generation, the offsprin...

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