Tanaka T, Yamazaki T
Department of Biology, Faculty of Science, Kyushu University, Fukuoka.
Jpn J Genet. 1990 Dec;65(6):417-26. doi: 10.1266/jjg.65.417.
Fitness and its components in Drosophila melanogaster were estimated under the homozygous condition. All of these parameters, except for egg-to-adult viability and female fecundity, were measured under interspecific competition with D. hydei. The following results were obtained: (1) Significant genetic variation was detected in fitness, productivity, adult viability, total egg-to-adult viability and female fecundity. (2) Significant correlation was obtained between fitness and productivity (rp = 0.792 for phenotypic correlation, rg = 0.945 for genotypic correlation), between fitness and total egg-to-adult viability (rp = 0.355, rg = 0.395), and between fitness and female fecundity (rp = 0.451, rg = 0.511). (3) There was no significant correlation between total egg-to-adult viability and fecundity (rp = -0.046). The biological implications of the interrelationship between fitness and its components are discussed.
在纯合条件下对黑腹果蝇的适合度及其组成部分进行了评估。除了卵到成虫的存活率和雌蝇繁殖力外，所有这些参数都是在与海德氏果蝇的种间竞争条件下测量的。得到了以下结果：（1）在适合度、生产力、成虫存活率、总卵到成虫存活率和雌蝇繁殖力方面检测到显著的遗传变异。（2）适合度与生产力之间存在显著相关性（表型相关性rp = 0.792，基因型相关性rg = 0.945），适合度与总卵到成虫存活率之间存在显著相关性（rp = 0.355，rg = 0.395），适合度与雌蝇繁殖力之间存在显著相关性（rp = 0.451，rg = 0.511）。（3）总卵到成虫存活率与繁殖力之间没有显著相关性（rp = -0.046）。讨论了适合度与其组成部分之间相互关系的生物学意义。
