A method for breeding farmed hybrid of north bay black butterfly shell and triploid margaritifera auriculata
By precisely matching chromosome characteristics and controlling the seedling process, the problems of chromosome pairing disorder and low fertilization rate in the distant hybridization of black-lipped pearl oyster and triploid Pinctada martensii were solved, realizing an efficient seedling method and cultivating hybrid pearl oyster seedlings with excellent traits.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG RONG HUI CULTURED PEARL CO LTD
- Filing Date
- 2026-06-04
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, distant hybridization between the Beibu Gulf black-lipped oyster and the triploid Pinctada martensii results in problems such as chromosome pairing disorder, low fertilization rate, and high larval deformity rate, making it impossible to mass-produce hybrid seedlings.
By precisely matching the chromosome characteristics of the black-lipped oyster and the triploid Pinctada martensii, the fertilization rate and embryo development rate are improved by using flowing water heating to induce sperm release, ammonia water to promote egg maturation, and microscopic monitoring of the fertilization process. Filtered seawater is used to cultivate larvae to ensure normal chromosome division.
It significantly improved the fertilization rate and larval survival rate of distant hybridization, realizing industrialized large-scale seedling production. The hybrid offspring combine the high-quality pearl-producing performance of the black butterfly oyster with the growth and disease resistance advantages of the triploid Pinctada martensii.