Method for cultivating new variety of argopecten purpuratus and argopecten irradians concentricus hybrid scallops

A breeding method and technology of new varieties, which are applied in the field of breeding new varieties of Zihaimo hybrid scallops, can solve the problems that hybrid parents are not easy to obtain the best combining ability combination, germplasm decline of Gulf of Mexico scallops, etc., achieving significant heterosis and saving Human and material resources, fast growth effect

Active Publication Date: 2019-03-08
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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  • Method for cultivating new variety of argopecten purpuratus and argopecten irradians concentricus hybrid scallops
  • Method for cultivating new variety of argopecten purpuratus and argopecten irradians concentricus hybrid scallops

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Effect test

Embodiment 1

[0057] 1. Method

[0058] (1) Cultivation of mixed populations

[0059] Cultivation of the first-generation Zihaimo hybrid population: select scallop "Bohai Red" with no damage to the shell, plump shell, and a shell height of more than 6 cm, and a total of 1,000 Gulf of Mexico scallops with no damage to the shell, plump shell, and a shell height of more than 5 cm , placed in the Qishui Port, Leizhou, Zhanjiang, where the water temperature is 25°C and the bait is abundant, to promote ripening simultaneously; 200 scallops "Bohai Red" with mature gonads and 200 Gulf of Mexico scallops were selected from them, and the two parents were placed in 27 ℃ In a separate small pond with sand-filtered seawater, heat up the running water to stimulate the parents to discharge sperm, and then put an appropriate amount of mixed sperm into the nursery pond in advance. Finally, a mixed population including parental self-fertilized eggs and hybrid fertilized eggs is obtained, and the larvae are ...

Embodiment 2

[0068] 1. Method

[0069] (1) Cultivation of mixed populations

[0070] Cultivation of the first-generation Zihaimo hybrid population: select 800 scallops "Bohai Red" with no damage to the shell, plump shell, and a shell height of more than 6 cm, and 800 Gulf of Mexico scallops with no damage to the shell, plump shell, and a shell height of more than 5 cm , and placed in the Qishui Port, Leizhou, Zhanjiang, where the water temperature is 25°C and the bait is abundant, to promote ripening simultaneously; 300 gonad-developed scallops "Bohai Red" and 300 Gulf scallops were selected from them, and the two parents were placed in 26 ℃ In a separate small pond with sand-filtered seawater, heat up the running water to stimulate the parents to discharge sperm, and then put an appropriate amount of mixed sperm into the nursery pond in advance. Finally, a mixed population including parental self-fertilized eggs and hybrid fertilized eggs is obtained, and the larvae are cultivated and ra...

Embodiment 3

[0079] 1. Method

[0080] (1) Cultivation of mixed populations

[0081] Cultivation of the first-generation Zihaimo hybrid population: select 1,000 scallops "Bohai Red" with no damage to the shell, plump shell, and a shell height of more than 6 cm, and 1,000 Gulf of Mexico scallops with no damage to the shell, plump shell, and a shell height of more than 5 cm , placed in the Qishui Port, Leizhou, Zhanjiang, where the water temperature is 25°C and the bait is abundant, to promote ripening simultaneously; 500 gonad-developed scallops "Bohai Red" and 500 Gulf of Mexico scallops were selected from them, and the two parents were placed in 26 ℃ In a separate small pond with sand-filtered seawater, heat up the running water to stimulate the parents to discharge sperm, and then put an appropriate amount of mixed sperm into the nursery pond in advance. Finally, a mixed population including parental self-fertilized eggs and hybrid fertilized eggs is obtained, and the larvae are cultiva...

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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 for a new variety of Zihaimo hybrid scallop. 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 sea area 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 scallop. Fishery pillar industry. However, after 20 years of inbreeding without any systematic artificial breeding, the Gulf of Mexico scallop has experienced obvious germplasm decline, mainly manifested in increased mortality, decreased growth rate, and frequent occurrence of diseases. Therefore, the introduction of new varieties Or nurturing has become a top priority. [0003] Scallop "Bohai Red" is purple s...

Claims

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Application Information

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Patent Type & Authority Applications(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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