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Genetic, Breeding and Reproduction Studies on Teleost

硬骨鱼的遗传、育种和繁殖研究

基本信息

批准号：
04044191
负责人：
YAMAZAKI Fumio
金额：
--
依托单位：
Faculty of Fisheries, Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Overseas Scientific Survey.
财政年份：
1992
资助国家：
日本
起止时间：
1992 至无数据
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04044191/
关键词：
genetics Breeding Sex control Vitellogenin Fishes Korea

项目摘要

The main purposes of this international cooperative research works with korean scientists in the fields of genetics, breeding and reproduction in fishes are to establish strong personal connection between Japan and Korea in the same field. We did not know about the present situations in the research of fish genetics, breeding and reproduction in korea. We first planned to exchange idea and information on the fish genetics and reproduction and had seminars at kon-kuk. University and Korea Ocean Research & Development Institute. The discussion on the chromosome manipulation on the basis of profitable use of the techniques and the problems in the aquaculture was fruitful.The triploid females are useful because they are all infertile and grow through the spawning season. But triploid males are fertile and have possibility to be involved in the natural spawning. This may cause some genetic pollution in the natural population because the triploid males produce abnormal embryogenesis when the … More y mate with normal females. The problem is that the manipulation gas strong possibility to induce chromosomal changes. The Electrically fused-eggs caused just after fertilization make new research field of chimera formation in fishes. Such research field is new in Korea. The cryopreserved sperms may be useful in the future aquaculture in a sence of fish breeding. This technique may be applied to the breeding of Japanese flounder. In Korea, mariculture of Japanese flounder is now prosperous in cheju-Do and in the coastal waters around pusan. the sex control of the japanese flounder was also topic at National Fisheries University of Pusan. Sex control and manipulation in Japanese Flounder is already established in Japan, because the growth of females is more rapid than males and economical benefit will be obtained by keeping all female population in this aquaculture. Vitellogenin production in the liver at maturation is common under the control of E secretion in fish. But interesting results were obtained in the present research that the Vitellogenin production was also under the control of GTH as well as E in eels. This result was obtained from the liver cell culture in Vitro. The research levels between Japan and Korea in the fields of fish genetics and reproduction are quite different. The proposal from Professor Park Kon-kuk University to continue cooperative research works on the fish genetics, breeding and reproduction was made. We are planning future cooperative works between Japan and Korea on the basis of the Fruitful results of the exchange of the information and research works in the present studies. Less

这次与韩国科学家在鱼类遗传学、繁育和繁殖领域的国际合作研究工作的主要目的是在同一领域建立日本和韩国之间强大的个人联系。我们不知道韩国在鱼类遗传、繁殖和繁殖方面的研究现状。我们首先计划交流关于鱼类遗传和繁殖的想法和信息，并在Kon-kuk举办了研讨会。大学和韩国海洋研究开发研究所。在有效利用这些技术的基础上，对染色体操作和水产养殖中存在的问题进行了富有成效的讨论。三倍体雌性是有用的，因为它们都是不育的，并在产卵季节生长。但三倍体雄性是可育的，有可能参与自然产卵。这可能会在自然种群中造成一些遗传污染，因为三倍体雄性在…更多地与正常的雌性交配。问题是，这种操作极有可能导致染色体改变。受精后产生的电融合卵为鱼类嵌合体的形成开辟了新的研究领域。这样的研究领域在韩国还是一个新的领域。超低温保存的精子在未来的水产养殖中有一定的应用价值。该技术可应用于牙鲆的繁育。在韩国，济州岛和釜山附近的沿海水域的日本比目鱼养殖业现在很兴旺。釜山国立水产大学也讨论了日本比目鱼的性别控制问题。日本已经建立了对比目鱼的性别控制和控制，因为雌性比雄性生长更快，将所有的雌性种群都保留在这种水产养殖中将获得经济效益。成熟时肝脏中卵黄蛋白原的产生受鱼类E分泌的控制是很常见的。但在本研究中获得了有趣的结果，即鳗鱼体内卵黄蛋白原的产生也受GTH和E的控制。这一结果是从体外肝细胞培养中获得的。日本和韩国在鱼类遗传和繁殖领域的研究水平相差很大。朴建国大学教授建议继续在鱼类遗传、繁殖和繁殖方面开展合作研究工作。在本研究的信息交流和研究工作取得丰硕成果的基础上，我们正在规划日本和韩国未来的合作工作。较少