一些由同一亲本群体进化而来的群体在繁殖上不再相容——他们进化成了不同的物种。
Some groups that had descended from the same parent population were no longer reproductively compatible—they had evolved into separate species.
在OPF-09、OPZ - 11两个引物的扩增结果中，发现两个亲本群体及其子代有差异标记。
There were some different amplified results between the two groups of shrimp with primers OPF - 09, OPZ -11.
永久群体的竞争优势为负向，理论上此永久F 2群体不能在生产上直接利用来作为杂交亲本，但可以作为遗传群体的研究材料。
Permanent group competitive advantage was negative, so this immortalized F2 population could not be directly used theoretically in production, but it could be used as genetic group research materials.
利用西瓜栽培品种97103和野生品种PI296341-FR为亲本构建了由117个稳定株系组成的F2S8代重组自交系永久群体。
The F2S8 RILs permanent population containing 117 progenies was derived from the cross of cultivated inbred line 97103 and wild germplasm PI296341-FR.
结果如下： （1） 该群体对褐飞虱的平均抗性指数和平均受害等级均呈连续分布，显示了数量性状的特征， 表明该群体及其亲本对褐飞虱的抗性是由微效多基因控制的数量抗性；
The results showed that:(1)160 tested RIL gave a continuous distribution in their resistance indices to BPH, indicating that the resistance in the tested rice plants to BPH belonged to polygenic type.
结果如下： （1） 该群体对褐飞虱的平均抗性指数和平均受害等级均呈连续分布，显示了数量性状的特征， 表明该群体及其亲本对褐飞虱的抗性是由微效多基因控制的数量抗性；
The results showed that:(1)160 tested RIL gave a continuous distribution in their resistance indices to BPH, indicating that the resistance in the tested rice plants to BPH belonged to polygenic type.
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