Genetic analysis of natural populations of Drosophila melanogaster in Japan. V Genetic variabilities of amylase activities in different developmental stages and theil relation to fitness.:V. Genetic variabilities of amylase activities in different developmental stages and theil relation to fitness
Genetic analysis of natural populations of Drosophila melanogaster in Japan. V Genetic variabilities of amylase activities in different developmental stages and theil relation to fitness.:V. Genetic variabilities of amylase activities in different developmental stages and theil relation to fitness
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日本果蝇自然种群的遗传分析。
DOI：
10.1266/jjg.61.329
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发表时间：
1986
期刊：
影响因子：
--
通讯作者：
T. Yamazaki
中科院分区：
文献类型：
--
作者：
T. Yamazaki
在从黑腹果蝇自然群体建立的 10 个同基因菌株中发现了与不同发育阶段的淀粉酶活性（发育诱导性）以及诱导性（S/N）有关的调节基因的遗传变异，这在之前的报告（Yamazaki 和 Matsuo 1984）中进行了研究。通过种间竞争实验获得这10个菌株各自的净适应度，并计算适应度与淀粉酶诱导性之间的相关性；发育诱导性和适应性之间没有相关性。另一方面，适应性和诱导性（S/N）之间存在显着的正相关（r~=0.48和r9=0.95）。这表明这两类调控基因多态性本质上是不同的，正常环境下不同发育阶段所发现的酶的调控模式与果蝇的适应性关系不大。
Genetic variation of regulatory genes with respect to the amylase activities in different developmental stages (developmental inducibility) as well as the inducibility (S/N) which was studied in the previous reports (Yamazaki and Matsuo 1984), was found among 10 isogenic strains established from a natural population of Drosophila melanogaster. Net fitness of each of these 10 strains was obtained from interspecific competition experiments and the correlation between fitness and inducibilities of amylase was calculated; No correlation was obtained between developmental inducibility and fitness. On the other hand, a significant positive correlation was obtained between fitness and inducibility (S/N) (r~=0.48 and r9=0.95). This indicates that these two types of regulatory gene polymorphisms are different in nature, and that regulatory patterns of the enzymes which are found in different developmental stages under normal environments have little to do with adaptability of flies.