Maternal Effect on Salinity Tolerance in Newborn Guppy Poecilia reticulata
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- Shikano Takahito
- Faculty of Agriculture, Tohoku University
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- Fujio Yoshihisa
- Faculty of Agriculture, Tohoku University
書誌事項
- タイトル別名
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- Maternal Effect on Salinity Tolerance in Newborn Guppy <i>Poecilia reticulata</i>
- Maternal Effect on Salinity Tolerance i
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抄録
Salinity tolerance was examined in 14 strains of the guppy. Salinity tolerance was measured as LD50 24 h after transfer to serial concentrations of salinity. The LD50 showed high values at birth and significantly decreased within 5 days after birth. The LD50 was higher at birth than at 10 days after birth and at an adult stage in all of the strains. Strain differences were observed in the LD50 at birth, 10 days after birth, and at an adult stage. Positive correlation was not observed between the strain differences at birth and at the adult stage but was observed between 10 days after birth and at the adult stage, suggesting that genetic control for salinity tolerance at birth differs from that of specimens over 10 days after birth. Cross experiments revealed that survival rates of F1 hybrids in 35 ppt seawater at birth showed a positive correlation with rates of female parents but not with male parents. This indicated a maternal effect on salinity tolerance of newborn guppies at birth. The results of backcross suggested that the salinity tolerance of newborn guppies is not controlled by cytoplasmic genetic factors but by the mother's genotypes.
収録刊行物
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- Fisheries science
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Fisheries science 64 (1), 52-56, 1998
公益社団法人 日本水産学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001204429793792
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- NII論文ID
- 130003742112
- 10004873084
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- NII書誌ID
- AA10993718
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- COI
- 1:CAS:528:DyaK1cXhtlygt78%3D
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- NDL書誌ID
- 4406503
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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