Method and breeding first generation hybridized bombyx mori

A technology of hybrids and new methods, applied in animal husbandry and other directions, to achieve the effects of high quality silkworm seeds, convenient operation and convenient management

Inactive Publication Date: 2002-09-18
SERICULTURAL RES INST ANHUI ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nevertheless, a large number of pure pairing accidents cannot be avoided due to the storage of mating species male moths in the same room or the identification of species is wrong or lost.

Method used

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Examples

Experimental program
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Embodiment Construction

[0005] Using the two-stage continuous backcrossing method, the recessive cinereus gene of Bombyx mori was introduced into the Chinese system of silkworm, and the cinereus was obtained, which was combined with the Japanese system white moth for a first generation of hybrids. Observe carefully when the moths are mating. If one black moth and one white moth are mated, it is a hybrid, keep it, and a generation of hybrids will be produced. If two black moths or two white moths are mated, it is a pure pair, and discard it.

[0006] This recessive gray black moth gene is in the Chinese silkworm gene bank, so it is imported into the Chinese system variety.

[0007] In the same way, the first generation of hybrids can also be combined with the Japanese system gray black moth and the Chinese system white moth.

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Abstract

A method for breeding the first generation hybridized silkworm features that the Chinese rivous moth is hybridized with the Japanese white moth to obtain the hybridized silkworm. Its advantages are high hybridization rate up to 100%, and high output of silk cocoon.

Description

technical field [0001] The invention relates to a method for breeding silkworm hybrids, in particular to a new breeding method for first-generation silkworm hybrids using the middle-line black moth moth. Background technique [0002] At present, the silkworm silk cocoon production in rural areas all use the first-generation hybrids with greater heterosis. One of the opposite parents for breeding the first generation of hybrids is the original species of the Chinese system (the original species of the Chinese line), and the other is the original species of the Japanese system (the original species of the Japanese line). In the mating of silkworm moths, it is necessary to mate the Chinese male moths with the Japanese female moths or the Chinese female moths with the Japanese male moths in order to obtain a generation of hybrids with real heterosis. On the contrary, if the female and male moths are both Chinese or Japanese, it is called a pure pair, and the silkworm eggs obtai...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/04
Inventor 李圣秦俭孙家羿黄德辉杜经元
Owner SERICULTURAL RES INST ANHUI ACADEMY OF AGRI SCI
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