Study for the Conservation of Aquatic Organisms as Genetic Resources

水生生物遗传资源保护研究

• 批准号: 08406014
• 负责人: FUJIO Yoshihisa
• 金额: $ 11.52万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08406014/
• 关键词: genetic resource; natural population; cultured population; population genetics; isozyme analysis; DNA analysis; genetic divergence; genetic variability; 野生集団; アイソザイム分布; 系統; 自然集団; RAPD分析; 耐性; 遺伝的組成

For conservation of aquatic organisms, genetic diversity in natural and cultured populations. The results are summarized as follows :1) Genetic divergence is dependent on geographical distribution with reproductive isolation.2) The cultured populations are genetically more diversified than the natural populations.3) The amount of genetic variation as measured by average heterozygosity shows that (1) different species have significantly different amount of genetic variation, (2) populations within a species have remarkably similar levels of heterozygodity, and (3) management procedure for culture have resulted in the loss or increase of genetic variation in each cultured population.4) Although, the recessive deleterious alleles in stoch of homozygotes are eliminated by natural selection, they are mostly present in the state of heterozygotes within a population.

为了保护水生生物，自然和培养人群中的遗传多样性。 The results are summarized as follows :1) Genetic divergence is dependent on geographical distribution with reproductive isolation.2) The cultured populations are genetically more diversified than the natural populations.3) The amount of genetic variation as measured by average heterozygosity shows that (1) different species have significantly different amount of genetic variation, (2) populations within a species have remarkably similar levels of heterozygodity, and (3)培养的管理程序导致每个培养的人群的遗传变异丧失或增加。

项目成果

Minoru IKEDA: "Genetic and morphological analysis of geographic differentiation in Japanese common freshwater shrimp, Paratya compressa (Decapoda : Atyidae)" Tohoku Journal of Agricultural Research. 47・1-2. 37-45 (1996)

Minoru IKEDA：“日本常见淡水虾，Paratya compressa（十足目：Atyidae）的遗传和形态学分析”东北农业研究杂志47・1-45（1996）。

Masatsugu Takano: "Biochemical and morphological evidence of two sympatric forms, interpreted as sibling species in the estuarine grapsid crab Hemigrapsus penicillatus (De Haan)." Benthos Research. 52. 111-117 (1997)

Masatsugu Takano：“两种同域形式的生化和形态学证据，被解释为河口草蟹 Hemigrapsus penicillatus (De Haan) 的同胞物种。”

Yoshihisa Fujio: "Selection and inbreeding depression in maintenance of a stock population of the apple snail Pomacea canaliculata" Fishries Science. 63. 368-371 (1997)

Yoshihisa Fujio：“苹果螺 Pomacea canaliculata 种群维持中的选择和近交抑制”渔业科学。

劉 思陽: "アイソザイム分析によるヒラメ人工種苗の遺伝的特徴。" 水産育種. 25. 49-55 (1997)

刘思阳：“同工酶分析的人工牙鲆幼苗的遗传特征。渔业育种”25。49-55（1997）。

安藤大成: "グッピ-の脊椎骨数の系統差について" 水産育種. 23. 59-66 (1996)

安藤大成：“关于孔雀鱼椎骨数量的品系差异”，《渔业育种》23. 59-66 (1996)。