A kind of seed production method of Kumamoto oyster strain with double white shell
A technology of white-shell Kumamoto and oysters, which is applied in the field of seed production of double-white-shell Kumamoto oyster strains, can solve the problem of lack of new high-quality varieties, and achieve the effect of white appearance and high commodity value
Active Publication Date: 2017-11-07
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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Problems solved by technology
[0004] In order to solve the problem that there are no high-quality new varieties in the current Kumamoto oyster breeding industry, the present invention provides a seed production method of a double-white-shelled Kumamoto oyster strain. According to the method of the present invention, white shells with beautiful appearance and neat shell shape can be cultivated color strains, and it also provides an opportunity for the cultivation of new varieties
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0015] a. Construction of the core basic group: In late May 2013, at the Zhanjiang Marine Economic Animal Experimental Station of the South China Sea Institute of Oceanology, Chinese Academy of Sciences, 6230 individuals of mature wild Kumamoto oysters in Zhanjiang were used as the basic group, and the group self-propagation was adopted through the stimulation of shady trunk water. The core base group was built in this way, and a total of 120 million D-shaped larvae were produced, which were placed in three 20m 3 In the cement pond, cultivate the oysters of Kumamoto according to the gradual change of salinity in the coastal areas of South China. When the eyespots and outstretched legs appear, treat the eyespot larvae with norepinephrine, and use the downflow device for single cultivation. When the oysters grow When the size reaches 10-20mm, 873 Kumamoto oyster individuals with double white shells (both shells are white, and the white shell color area of the left and right she...
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The invention discloses a method for culturing a double-white-shell crassostrea sikamea strain. Hereditary characteristics of a left white shell and a right white shell of crassostrea sikamea are different, the right white shell has an invisible hereditary character which can be stably inherited, and the left white shell has a dominant hereditary character and requires screening of homozygous dominant individual. The new double-white-shell crassostrea sikamea strain with a stable inheritance character can be obtained by the technical means of core group construction, double-white-shell individual heterozygosity testing, double-white-shell homozygous family screening, double-white-shell strain directional purification and the like in combination with the negative correlation principle of the content of melanin in a mantle and a white shell color according to a shell color hereditary mechanism. The double-white-shell crassostrea sikamea strain obtained with the method has the advantages of stable inheritance, high commercial value and the like and has an appearance as white as polished jade, an approach is provided for cultivation of the new crassostrea sikamea strain, and a new fine breed is provided for the cultivation industry of the crassostrea sikamea.
Description
Technical field: [0001] The invention belongs to the field of shellfish genetics and breeding in marine biotechnology, and in particular relates to a seed production method of a double white-shell Kumamoto oyster strain. Background technique: [0002] Kumamoto oyster Crassostrea sikamea is native to Southeast Asia, including China, Korea, Japan and other places. It likes to live in saline waters in brackish water areas, and is distributed in the south of the Yangtze River in my country (including Nantong, Jiangsu), such as Zhejiang, Fujian, Guangdong, Guangxi, Hainan and other places. Although the individuals of Kumamoto oysters are small, they are delicious. In the United States, the price of a single live oyster is about twice that of long oysters and American oysters. In my country, Kumamoto oysters are also called oysters, yellow oysters, and iron oysters. The smallest, but most commercially exploitable oyster in the giant oyster genus. [0003] The shell color of Kuma...
Claims
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IPC IPC(8): A01K61/54
CPCY02A40/81
Inventor 喻子牛张跃环张扬李军毛帆
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI