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

Practical silkworm variety cultivation method capable of controlling male ratio and application

A breeding method and practical technology, applied in animal husbandry and other fields, can solve problems such as difficulties in the production of female silkworms, and achieve the effect of strong production capacity and high level

Inactive Publication Date: 2015-05-27
SOUTHWEST UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These show that there are indeed many difficulties in the production of female silkworms obtained by parthenogenetics

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
  • Practical silkworm variety cultivation method capable of controlling male ratio and application
  • Practical silkworm variety cultivation method capable of controlling male ratio and application
  • Practical silkworm variety cultivation method capable of controlling male ratio and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The limited ant color system silkworm breed resource W-01 preserved by the School of Biotechnology of Southwest University is adopted. This system is a genetic operating system with poor economic characteristics (see Table 1 for details). Figure 4 with Figure 5 ), cannot be used in production. We use W-01 as the donor parent, and the high-quality Chinese silkworm species Jingsong, 871, etc., which are widely promoted and applied in production, as the recipient parent. figure 1 (m=2), figure 2 (n=1), image 3 Of the process, the Z of the W-01 system sch Gene and W +sch The gene was transferred into it to obtain the Jingsong silkworm variety with a controllable male ratio (abbreviated as Jingsong W +sch ) And the 871 silkworm breed with a controllable male ratio (referred to as 871W +sch ).

[0037] A. The practical effect of economic traits

[0038] Compared with the original limited ant-color system W-01, the practical silkworm species with a controllable male ratio de...

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 provides a practical silkworm variety cultivation method capable of controlling the male ratio. In the method, a sex-limited ant color system under the control of an sch mutant gene carried on Z chromosome of silkworm and a +sch gene translocated on a W chromosome is taken as a donor, and a Z<sch> gene and a W<+sch> gene of the donor can transferred onto a receptor through hybridization in which an ordinary ant color practical silkworm variety is taken as the receptor. In the method, the genetic regularity of key genes (namely, the Z<sch> gene and the W<+sch> gene) for controlling the male ratio are organically combined with a classical silkworm breeding method, thereby forming a practical silkworm variety method capable of controlling the male ratio in rapid breeding is constructed.

Description

Technical field [0001] The invention belongs to an animal breeding method, and particularly relates to the breeding of silkworm species. technical background [0002] The silkworm is an important economic insect, which has been used by humans for more than 5,000 years of history. The silkworm reproduces through sexual reproduction, and the proportion of male and female offspring is equal, forming a natural ecological balance, which is convenient for uninterrupted offspring generation. The female and male of the silkworm have different characteristics. In order to achieve a certain goal, the female or male needs to be controlled. [0003] The sex chromosome of the silkworm is ZW type, and the W chromosome has a female sex determination. Scientists have used this feature to obtain systems such as stripe limit, egg color limit and ant color limit through chromosome engineering. These systems can be distinguished between males and females based on morphological markers, hoping to ach...

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): A01K67/04
Inventor 陈萍陈曦李田蒋贵宾鲁成陈鹏李艳李海银吕银
Owner SOUTHWEST UNIV
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