Heterosis and Maternal Effects in Salinity Tolerance of the Guppy <i>Poecilia reticulata</i>

• Shikano Takahito

  Faculty of Agriculture, Tohoku University

• Nakadate Motoki

  Faculty of Agriculture, Tohoku University

• Nakajima Masamichi

  Faculty of Agriculture, Tohoku University

• Fujio Yoshihisa

  Faculty of Agriculture, Tohoku University

Bibliographic Information

Other Title

• Heterosis and Maternal Effects in Salinity Tolerance of the Guppy Poecilia reticulata
• Heterosis and Maternal Effects in Salin

Abstract

Salinity response in F₁ hybrids of the guppy was measured as survival time after subjecting mature fish to 35 ppt artificial seawater. The amount of heterosis was expressed by the difference between the means of the F₁ hybrids and the parental strains. The mean survival times of the F₁ hybrids were higher than the mid-parent values, indicating heterosis. The amount of heterosis differed among strain combinations. A positive correlation was observed between the survival times of the F₁ hybrids and the female parents but not between the F₁ hybrids and the male parents, indicating maternal effects. These results suggest that the heterosis observed in the F₁ hybrids is attributable to two components: the first is the non-maternal component induced by strain combinations and the second is the maternal effects of strain populations.

Journal

• Fisheries science

  Fisheries science 63 (6), 893-896, 1997

  The Japanese Society of Fisheries Science

Keywords

• guppy
• salinity tolerance
• heterosis
• maternal effect
• strain difference

Details

• CRID: 1390001204428942080
• NII Article ID: 130003903132
• NII Article ID: 10004872129
• NII Book ID: AA10993718
• DOI: 10.2331/fishsci.63.893
• NDL BIB ID: 4371613
• ISSN: 09199268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4371613
• Web Site: https://www.jstage.jst.go.jp/article/fishsci1994/63/6/63_6_893/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed