Two-environment selection with inbreeding in Schizophyllum commune.
Two-environment selection with inbreeding in Schizophyllum commune.
复制标题
裂褶菌公社近交的两种环境选择。
DOI：
10.1017/s0016672300012817
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发表时间：
1973
期刊：
影响因子：
--
通讯作者：
G. Simchen
中科院分区：
文献类型：
--
作者：
V. Connolly;G. Simchen
在对真菌裂褶菌在两种环境（20 °C和30 °C）中的生长速率的双向选择中，对低生长速率的响应总是大于对高生长速率的响应。这种不对称性是由于近交衰退与高温环境中低品系的较大选择差异相结合。尽管应用了高水平的近交，但来自相同来源（亲本分离物2）的两个低选择系在选择期间显示遗传方差没有减少。相对于相应的高选择系，这种遗传变异的维持与发育稳定性的降低有关。
In two-way selection for growth rate in the fungus Schizophyllum commune in two environments (20 °C and 30 °C) response for low growth rate was always greater than for high. This asymmetry was due to inbreeding depression combined with a greater selection differential associated with the low lines in the high temperature environment. Despite the high level of inbreeding applied, two low selection lines derived from the same source (parental isolate 2) showed no decrease in genetic variance during selection. This maintenance of genetic variance was associated with a decrease in stability of development relative to the corresponding high selection lines.