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Cultivation method of double-cocoon silkworm variety

A cultivation method and variety technology, applied in animal husbandry and other directions, can solve the problems of inability to meet market demand, shortage of raw material cocoons, and small quantity of silk wool, and achieve excellent cocoon silk quality, pure cocoon color, and practicality. strong effect

Active Publication Date: 2018-06-12
江苏苏豪蚕种有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Apparently, good-quality Shuanggong silk quilts are the most popular, but due to the shortage of Shuanggong raw material cocoons, there are not many real Shuanggong silk quilts.
With the continuous improvement of people's material living standards, the demand for high-quality and high-grade double palace silk cotton quilts is increasing. The current silkworm varieties all form single palace cocoons, and the ratio of double palace cocoons is very low, below 5%. No matter how you choose to breed, you can't breed a variety with a double cocoon rate of more than 5%, which can't meet the market demand
Cultivating high-quality and high-yield double-cocoon silkworm varieties is in line with the trend of the times. The future market will be huge and will play an important role in the development of my country's silk industry. Therefore, it will be of great practical significance to cultivate the current multi-filament silkworm varieties into high-quality and high-yield natural double-cocoon silkworm varieties

Method used

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  • Cultivation method of double-cocoon silkworm variety
  • Cultivation method of double-cocoon silkworm variety
  • Cultivation method of double-cocoon silkworm variety

Examples

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Embodiment 1

[0020] The breeding process of this embodiment sees figure 1 , hybridizing the silkworm variety containing the multiple cocoon recessive trait gene mc with the existing silkworm variety to obtain the silkworm variety F1 containing the multiple pupa cocoon recessive trait gene; selfing the above silkworm variety F1 through systematic separation and directional selection method, In the progeny, a dimorphic cocoon silkworm variety homozygous for genotype mcmc was bred.

Embodiment 2

[0022] In this example, the current silkworm varieties Jingsong and Haoyue that do not contain the gene mc are introduced into the gene mc by the hybridization method, and the double palace cocoon silkworm variety Jingsong Shuang, which is homozygous for the genotype mcmc, is selected from the offspring by the method of systematic separation and directional selection. , Haoyue Shuang. Specifically: raise young silkworms of Jingsong, Haoyue, and multi-chrysalis cocoon gene mc silkworm varieties at the same time, and select the female moths of Jingsong and Haoyue and the male moths of multi-chrysalis silkworm variety respectively after eclosion in the upper cocoons, and then cross each other to produce Jingsong The F1 silkworm eggs of pine × multi-chrysalis and Haoyue × multi-chrysalis cocoon were raised, and the young silkworms of these two F1 generation silkworms were reared and eclosioned respectively, and then selfed respectively to produce Jingsong × multi-chrysalis cocoon, ...

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Abstract

The invention relates to a cultivation method of a silkworm variety, in particular to a cultivation method of a double-cocoon silkworm variety, and belongs to the technical field of biology. On the basis of a genetic law of multi-pupal cocoon genes and a work principle of the environment condition, a popularized and applied breeding method for cultivating excellent silkworm varieties into the double-cocoon silkworm variety in current production is adopted. By adopting a hybridization introducing method and a generationally directional breeding method, on the premise of ensuring the excellent economic characteristic of existing cocoon varieties, the cocoon varieties are improved and selectively bred into the double-cocoon silkworm variety containing mcmc gene combinations, and the double-cocoon silkworm variety has the advantages that the cocoon color is pure, the cocoon silk property is excellent, and the practicability is high.

Description

technical field [0001] The invention relates to a method for cultivating silkworm varieties, in particular to a method for cultivating silkworm varieties with double cocoons, and belongs to the field of biotechnology. Background technique [0002] Silk is one of the products of ancient Chinese civilization, with a history of more than 5,000 years. Many characters with silk in oracle bone inscriptions are good evidence. Silk is the lightest, softest, and thinnest natural fiber in nature. Silk is light and slender, the fabric is rich in luster, and has good air permeability and moisture permeability. It is widely used in handicrafts, industry, national defense, and medicine. In particular, silk contains 18 kinds of amino acids and other important substances necessary for the human body. It has a good health care effect on human arthritis, frozen shoulder, asthma and other diseases. It is known as "the second skin of the human body" and has a very promising development prospect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/04
CPCA01K67/04
Inventor 虞晓华贾仲伟陈玉华唐运成陈卓华潘澄
Owner 江苏苏豪蚕种有限公司
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