Selection for Fast and Slow Development Rates Affected Diapause and Other Developmental Traits in Plodia interpunctella (Lepidoptera : Phycitidae)

概要

論文の詳細を見る
Two selection lines have been established in Plodia interpunctella for slow and fast rates of larval-pupal development at 25℃, LD16 : 8. The fast developing line (FDL) completed larval and pupal development in 32.0±1.45 days (mean±SD), and the slow developing line (SDL) in 37.06±1.34 days. The selection also affected the metabolic rate, since the FDL produced heavier adults than the SDL. Photoperiodic response curves at 20℃ and 25℃ in these lines were long-day type but the degree of retardation in development was more prominent in the SDL than in FDL under all short days and continuous light. There were three distinct categories of development : (1) fast development, (2) short-day induced slow development and (3) very slow development or diapause. The proportion of larvae showing the third category of development was not affected by selection. The extent of retardation of larval development falling in this category was however strongly affected by photoperiod and temperature conditions. High temperature such as 25℃ overrode photoperiodic effect and also decreased the proportion of larvae diapausing. The effect of selection was yet apparent at this temperature : development in the FDL was much faster than in the SDL. Such a complex response is probably adaptive for storage environment. The establishment of selection lines for fast development and slow development could be a good genetic tool to dissect a highly complex physiological system like photoperiodism controlling larval diapause.
日本昆虫学会の論文
1998-12-25

Selection for Fast and Slow Development Rates Affected Diapause and Other Developmental Traits in Plodia interpunctella (Lepidoptera : Phycitidae)

スポンサーリンク

概要

著者

関連論文

スポンサーリンク