Implantation method of sex-linked balance lethal and sex control gene for Bombyx mori

A technology that balances lethality and genetics. It is applied in genetic engineering, plant genetic improvement, botanical equipment and methods, etc. It can solve problems such as poor economic traits and no direct use value, and achieve fast improvement and good results.

Inactive Publication Date: 2004-03-10
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the economic traits of the introduced species are very poor, far inferior to the current silkworm species in my country, and have no direct use value in our country. The introduced species must be improved by transgenic to maintain the excellent economic properties of the current species without losing the sex of the balanced lethal line. control gene

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
  • Implantation method of sex-linked balance lethal and sex control gene for Bombyx mori
  • Implantation method of sex-linked balance lethal and sex control gene for Bombyx mori
  • Implantation method of sex-linked balance lethal and sex control gene for Bombyx mori

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] A method for sex-controlling gene transfer in a sex-linked balanced lethal line of Bombyx mori

[0025] 1. Balance the sex control gene structure of the lethal line

[0026] figure 1 The structure and schematic diagram of the lethal sex control gene in the balance of sex continuum. from figure 1 It can be seen that the two sex chromatids Z of the male of this system each carry a recessive homozygous embryonic lethal gene with a mutation, namely l 1 and l 2 . The exchange rate of the two genes is 0.8%; there is a recessive homozygous second albumen gene w on the 10th autosome 2 / w 2 , so the male genotype structure is Z l 1 Z l 2 , w 2 / w 2 (according to the standard genotype should be written as Z ...

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

By means of hybridization of balance lethal line and available variety, the sex control gene of balance lethal line is dispersed in three subsystems. The three subsystems are made to backcross with available variety continuously to obtain the blood relation of available variety; and the sex control genes are combined to obtain one new variety of balance lethal line, through three times of mating in different modes. The sex-linked balance lethal line of Bombyx mori can reproduce secondary generation through self-copulation and ensure male incubation only when crossbreeding with other variety. The present invention can breed new male Bombyx mori variety with excellent economic characteristic and male Bombyx mori rate over 98 % in fast and high improvement effect.

Description

technical field [0001] The invention relates to a method for introducing sex-controlling genes of silkworm sex linkage balance lethal line. Background technique [0002] Compared with female silkworms, male silkworms have the obvious advantages of eating less mulberry, lower cost of raising silkworms, high silk yield and excellent silk quality. The special breeding of male silkworms can increase the economic benefit by more than 10% compared with the current mixed breeding of males and females. Therefore, China, Japan, Russia and other countries have studied silkworm sex control technology from different angles, and have not obtained a satisfactory male silkworm variety for half a century. Therefore, the technology of exclusively breeding male silkworms has not been applied in production practice. After decades of hard work, the Institute of Developmental Biology of the Russian Academy of Sciences has constructed a sex-linked balance lethal line of...

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
Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/04C12N15/12
Inventor 何克荣夏建国祝新荣黄健辉
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap