EFFECTS OF POPULATION DENSITY AND TEMPERATURE CONDITION ON FITNESS IN <i>DROSOPHILA MELANOGASTER</i>
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- OHNISHI SEIDO
- National Institute of Genetics
書誌事項
- タイトル別名
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- I. DEVELOPMENTAL TIME AND PRE-ADULT VIABILITY
抄録
Using the Oregon-R strain of Drosophila melanogaster, the pre-adult fitness components of developmental time and viability were estimated under various environmental conditions of larval density and temperature. The results show that: (1) The eclosion patterns acquired a circadian rhythm under fluctuating temperature conditions. (2) Developmental time was delayed not only by increasing larval density, but also by fluctuating temperature. (3) Though the pre-adult viability decreased with increasing larval density, it did not decrease with fluctuating temperature. (4) The correlations between developmental time and pre-adult viability under the constant and fluctuating temperatures were -0.55 and -0.31, respectively. (5) The coefficients of variation for pre-adult viability were larger than those for developmental time. Moreover, under the fluctuating temperature and in the low larval density, they were larger than under the constant temperature and in the high larval density.<br>These results suggest that in general the pre-adult fitness components are strongly influenced by environmental conditions. The fitness components, therefore, must be carefully estimated by considering the effects of environmental conditions.
収録刊行物
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- 遺伝学雑誌
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遺伝学雑誌 51 (1), 19-25, 1976
日本遺伝学会
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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
- 1390001205445685888
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- NII論文ID
- 130000059883
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- ISSN
- 18805787
- 0021504X
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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
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可