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Method for cultivating natural green cocoon silkworm variety

A cultivation method and variety technology, applied in animal husbandry and other directions, can solve the problems of poor silk strength and clarity, insufficient yield, and inability to reel silk, and achieve the effects of pure cocoon color, strong practicability, and excellent cocoon silk quality.

Inactive Publication Date: 2014-05-14
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production performance of the currently preserved colorful cocoon silkworm varieties is very poor, and the yield is less than 50% of the current multi-filament silkworm varieties. The silk strength and clarity are poor, and conventional silk reeling cannot be carried out, and the conditions for direct promotion and application are not available.

Method used

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  • Method for cultivating natural green cocoon silkworm variety
  • Method for cultivating natural green cocoon silkworm variety
  • Method for cultivating natural green cocoon silkworm variety

Examples

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Embodiment 1

[0018] See attached figure 1 , the present embodiment is disclosed by the Chinese invention patent CN1237872C a kind of breeding method of the silkworm variety with fluorescent cocoon color judgment property, obtains the gene containing Fx silkworm species, Fx It is a cocoon fluorescent color sex-linked gene, which contains the gene Fx The selected silkworm species are silkworm species that emit yellow-white fluorescent colors under a fluorescence detector. Gene introduction by hybridization Ga , through phylogenetic segregation-directed selection methods, genotypes are selected in the offspring GaGaFxFx A homozygous green cocoon silkworm variety.

Embodiment 2

[0020] See attached figure 2 , this example will not contain the gene Fx The current silkworm varieties do not contain genes Fx The selected silkworm species are silkworm species that do not emit yellow-white fluorescent colors under the fluorescence detector. Gene introduction by hybridization Ga , Fx , according to the literature "Genetic Research on Fluorescent Color of Silkworm Cocoons" ([J]. Sericulture Science, 1997,23(3):147-151) Fx Genes, genotypes are selected in offspring by systematic segregation-directed selection methods GaGaFxFx A homozygous green cocoon silkworm variety.

Embodiment 3

[0022] This example uses the Gc The current green cocoon silkworm varieties with genes and the genes already contained Fx Taking the current silkworm variety "Jingsong" as an example, we cultivated silkworm varieties containing GcGcFxFx Genetic silkworm breeds.

[0023] See attached image 3 , will already contain the gene Fx The Chinese systematic white cocoon silkworm variety "Jingsong", which introduces genes by hybridization Gc Finally, using the fluorescence discrimination method, through systematic separation and directional selection, after the fifth generation of directional selection, the cocoon color stable 100% green containing GcGcFxFx Genetic silkworm species, named "grassland".

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Abstract

The invention relates to a method for cultivating a natural green cocoon silkworm variety. By means of the method, the existing excellent white cocoon silkworm variety popularized and applied in the existing production is cultivated into a green cocoon silkworm variety according to the genetic development of green cocoon genes and the action mechanism of cocoon fluorescence color sex-linked genes and the green cocoon genes. A 'hybridization importing' and 'descent directional cultivating' method is adopted, and under the condition that the excellent economic characters of the existing cocoon variety are maintained, the existing cocoon variety is improved and cultivated into the green cocoon variety containing GaGaFxFx or GcGcFxFx gene combinations, and the green cocoon variety has the advantages of being pure in cocoon color, excellent in characteristics of bave and strong in practical applicability.

Description

technical field [0001] The invention relates to a method for cultivating silkworm varieties, in particular to a method for cultivating silkworm varieties with natural green cocoons. Background technique [0002] With my country's accession to the World Trade Organization and the improvement of awareness of the sustainable development of industry and agriculture, the country attaches great importance to the safety and environmental pollution of the textile industry. Therefore, the development of new textile raw materials will be a powerful solution. As the queen of fibers, silk must undergo chemical bleaching and dyeing to become colorful when made into ordinary silk fabrics. Natural colored silk itself already contains pigments after being spit out by silkworm babies. Textiles made of colored silk have a natural and simple color without bleaching, printing and dyeing, and the fabric is softer, more elastic, has a good hand feel and is comfortable to wear. It can be called a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K67/04
Inventor 虞晓华陈玉华席鹏伟
Owner SUZHOU UNIV
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