Selection and Inbreeding Depression in Maintenance of a Stock Population of the Apple Snail Pomacea canaliculata
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- Fujio Yoshihisa
- Laboratory of Fish Genetics and Breeding Sciences, Faculty of Agriculture, Tohoku University
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- Nakajima Masamichi
- Laboratory of Fish Genetics and Breeding Sciences, Faculty of Agriculture, Tohoku University
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- Showa Hitomi
- Laboratory of Fish Genetics and Breeding Sciences, Faculty of Agriculture, Tohoku University
書誌事項
- タイトル別名
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- Selection and Inbreeding Depression in Maintenance of a Stock Population of the Apple Snail <i>Pomacea canaliculata</i>
- Selection and Inbreeding Depression in
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抄録
A stock population of the apple snail has been maintained for artificial selection without human interference and has become inbred. Hatchability fluctuated significantly among the egg lumps, and average hatchability decreased with the decrease in number of mature snails in the stock population.<br> Heritability of hatchability was estimated from the regression line of hatchabilities of offspring to that of their parents; the value was 0.461. The realized heritability was calculated from the first selection for high and low hatchability, and the values were 0.398 for high hatchability and 1.427 for low hatchability.<br> High heritability probably involved heterotic effects, because of decreased hatchability observed in full-sib mating.
収録刊行物
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- Fisheries science
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Fisheries science 63 (3), 368-371, 1997
公益社団法人 日本水産学会
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詳細情報 詳細情報について
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- CRID
- 1390282679406079744
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- NII論文ID
- 10004869973
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- NII書誌ID
- AA10993718
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- NDL書誌ID
- 4231319
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- ISSN
- 09199268
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可