Breeding method of a new variety of Zihaimo hybrid scallop

A cultivation method and technology for new varieties are applied in the field of cultivation of new varieties of Zihaimo hybrid scallops, which can solve the problems that hybrid parents are not easy to obtain the best combining ability combination, the germplasm of Gulf of Mexico scallops declines, etc., and achieve significant heterosis, saving The effect of human and material resources and weight gain

Active Publication Date: 2020-09-15
GUANGDONG OCEAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the existing Gulf of Mexico scallop germplasm decline and hybrid parents that are difficult to obtain the best combination of combining ability, and provide a method for cultivating a new variety of Zihaimo hybrid scallop to obtain combining ability A new Zihaimo hybrid scallop variety with high height, fast growth rate, high meat yield, and adaptability to the high temperature environment in the southern sea area in summer

Method used

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  • Breeding method of a new variety of Zihaimo hybrid scallop
  • Breeding method of a new variety of Zihaimo hybrid scallop

Examples

Experimental program
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Effect test

Embodiment 1

[0057] 1. Method

[0058] (1) Cultivation of mixed groups

[0059] Cultivation of the first generation of Zihaimo hybrid population: Select the scallop "Bohai Red" with no damage, plump shell, and shell height above 6 cm, and 1,000 Gulf scallops with undamaged, plump shell and shell height above 5 cm. , Placed in the Leizhou Qishui Port of Zhanjiang, where the water temperature is 25℃ and rich in food, to promote the ripening simultaneously; from the selection of the mature gonadal scallops "Bohai Red" and the Gulf of Mexico scallops, 200 scallops were selected, and the two parents were placed in the 27 In a separate small pool of ℃ sand filtered seawater, the parents are heated and flowing water to stimulate the parents to discharge sperm, and then the appropriate amount of mixed sperm is put into the nursery pond in advance. When the parents start to ovulate after a certain period of fertilization, the parents are put into the nursery pond to freely discharge the eggs. Finally, ...

Embodiment 2

[0068] 1. Method

[0069] (1) Cultivation of mixed groups

[0070] Cultivation of the first generation of Zihaimo hybrid population: select 800 scallops "Bohai Red" with undamaged and plump shells and shell heights above 6 cm and 800 Gulf scallops with undamaged and plump shells and shell heights above 5 cm. , Placed in the Leizhou Qishui Port of Zhanjiang with a water temperature of 25℃ and rich bait to promote the ripening simultaneously; from them, 300 scallops "Bohai Red" with mature gonadal development and 300 scallops from the Gulf of Mexico were selected. In a separate small pool of ℃ sand filtered seawater, the parents are heated and flowing water to stimulate the parents to discharge sperm, and then the appropriate amount of mixed sperm is put into the nursery pond in advance. When the parents start to ovulate after a certain period of fertilization, the parents are put into the nursery pond to freely discharge the eggs. Finally, a mixed population including parental self...

Embodiment 3

[0079] 1. Method

[0080] (1) Cultivation of mixed groups

[0081] Cultivation of the first generation of Zihaimo hybrid population: select 1,000 scallops "Bohai Red" with undamaged and plump shells and shell heights above 6 cm and 1,000 Gulf scallops with undamaged and plump shells and shell heights above 5 cm. , Placed in the Leizhou Qishui Port of Zhanjiang with a water temperature of 25℃ and rich bait to promote the ripening simultaneously; from the selection of mature gonadal scallops "Bohai Red" and 500 scallops in the Gulf of Mexico, the two parents were placed in the 26 In a separate small pool of ℃ sand filtered seawater, the parents are heated and flowing water to stimulate the parents to discharge sperm, and then the appropriate amount of mixed sperm is put into the nursery pond in advance. When the parents start to ovulate after a certain period of fertilization, the parents are put into the nursery pond to freely discharge the eggs. Finally, a mixed population includi...

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Abstract

The invention discloses a method for cultivating a new variety of argopecten purpuratus and argopecten irradians concentricus hybrid scallops. The method comprises the following steps that S1, argopecten purpuratus and argopecten irradians concentricus scallops are utilized for colony hybridization, and a mixed colony including a parent selfing colony and a hybrid colony is obtained; S2, after shell color primary selection is carried out, hybrid individuals are identified with molecular biomarkers; S3, selfing purification of argopecten purpuratus and argopecten irradians concentricus hybrid F1 is carried out, wherein the identified hybrid individuals good in expression are selected, signal parent self sperms and eggs are subjected to selfing to set up a selfing family, a hybrid F2 familygood in expression is selected from the selfing family next year, at least three generations are continuously subjected to selfing breeding according to the same method, and the new variety of the argopecten purpuratus and argopecten irradians concentricus hybrid scallops good in character expression is obtained. The new variety of the character argopecten purpuratus and argopecten irradians concentricus hybrid scallops obtained through the method is high in combining ability, fast in growth, high in dressing percentage and bright in shell color, has good hybrid vigor, and can adapt to the high-temperature environment of the southern sea area in summer well.

Description

Technical field [0001] The invention belongs to the technical field of shellfish breeding. Specifically, it relates to a breeding method of a new hybrid scallop variety of Zihaimo. Background technique [0002] Gulf of Mexico scallops ( Argopecten irradians concentricus Say), also known as the southern subspecies of bay scallop, was introduced to the southern seas of my country in the 1990s. Because of its fast growth rate, high meat yield, and wide temperature adaptability, it was quickly promoted in Guangdong, Guangxi, and Hainan and became the Beibu Gulf. Pillar industry of fishery. However, after 20 years of inbreeding and without any systematic artificial selection, the Gulf of Mexico scallop has experienced obvious germplasm decline problems, which are mainly manifested as increased mortality, decreased growth rate, and frequent disease. Therefore, the introduction of new varieties Or cultivation has become a top priority. [0003] The scallop "Bohai Red" is purple scallop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01K61/54
CPCA01K61/54Y02A40/81
Inventor 刘志刚姚高友苏晓盈张元谭杰李健强吴羽媛王春德廖八路
Owner GUANGDONG OCEAN UNIVERSITY
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