Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for producing allotetraploid by hybridizing crassostrea angulata diploid and crassostrea hongkongensis triploid

A Portuguese oyster and diploid technology, which is applied in the hybrid production of Portuguese oyster and Hong Kong giant oyster to produce oyster allotetraploid, can solve the problems of low survival rate, poor taste and can only be used for barbecue, etc., and has broad prospects for popularization and application Effect

Inactive Publication Date: 2021-03-23
世倍(厦门)海洋科技有限公司
View PDF8 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the breeding cycle of giant oysters in Hong Kong is too long, and it usually takes 2 to 3 years to be marketed. The survival rate is low. Due to the long-term living in the estuary area, the taste is poor and it can only be used for barbecue, etc.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing allotetraploid by hybridizing crassostrea angulata diploid and crassostrea hongkongensis triploid
  • Method for producing allotetraploid by hybridizing crassostrea angulata diploid and crassostrea hongkongensis triploid

Examples

Experimental program
Comparison scheme
Effect test

no. 2 example

[0035] (a) Selection and maturation promotion of seed oysters: select 100 three-year-old Hong Kong giant oyster triploids (shell height 10-15 cm) with large individuals, good vitality, and no damage as reproductive females, from 1000 second-year-old Portuguese oysters The diploid (shell height 8-12cm) intercepts the individual with the top 10% of the total weight as the breeding male parent. Then put the seed shells into the seed shell cultivation ponds and adopt the flowing water method to promote ripening. The biological bait is mainly artificially cultivated golden algae, chaetoceros and flat algae, and the algae water in the earthen pond is used as a backup bait source.

[0036] (b) Acquisition of triploid eggs: After the gonads of Hong Kong giant oyster species have matured, 30 triploid individuals of Hong Kong giant oyster were detected by a ploidy analyzer, and a total of 24 3N individuals were detected, which were screened out through microscope observation Ten female ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for producing allotetraploid by hybridizing crassostrea angulata diploid and crassostrea hongkongensis triploid. According to the method, the crassostrea hongkongensistriploid is used as a female parent, the full weight is used as a target, the crassostrea angulata diploid is preferably selected as a male parent, and the oyster allotetraploid is produced through drug-induced hybridization. The oyster allotetraploid obtained by the method has the characteristics of euryhalinity and high temperature resistance, is suitable for breeding in low-salt areas such asestuary, and the oyster triploid produced by hybridizing the oyster allotetraploid with the common crassostrea angulata or crassostrea hongkongensis diploid is suitable for aquaculture in sea areas with different salt contents in China , and has wide popularization and application prospects.

Description

technical field [0001] The invention relates to a method for producing allotetraploid by shellfish hybridization, in particular to a method for hybrid production of oyster allotetraploid by Portuguese oyster and Hong Kong giant oyster. Background technique [0002] As an important marine organism, oyster has delicious meat and high nutritional value, and is called "milk in the sea". Oysters have a wide geographical distribution, fast growth, high yield, and high economic value. They are important mariculture objects in all countries in the world. [0003] The growth advantage of triploid oyster is obvious. Triploid oysters have 3 sets of chromosomes, so fecundity is extremely low, which means that on the one hand they can grow faster (their energy is used to grow rather than reproduce), and on the other hand they do not produce Or rarely produce gametes, which can ensure stable quality. Triploid oysters are formed by crossing tetraploid oysters with diploid oysters, so it...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): A01K61/54A01K61/17
CPCA01K61/17A01K61/54Y02A40/81
Inventor 朱李贤
Owner 世倍(厦门)海洋科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com