Carson H L, Teramoto L T, Templeton A R
Behav Genet. 1977 May;7(3):189-97. doi: 10.1007/BF01066275.
Mating propensity in eight all-female laboratory lines was measured. The lines are completely isogenic, but each has a different past history. In all cases, mating propensity was significantly lower than in the bisexual controls; in some cases, mating speed was less by a factor of 10. Three of the four lines deriving from the same wild strain are not only different from the parent strain but also different from each other. A highly significant difference exists between two strains recently obtained by selection for parthenogenesis from the same natural population. One strain appears to produce a substance which reduces mating propensity of control females if females from the two strains are reared together in the same vial. As none of the strains was behaviorally selected prior to testing, these behaviors appear to be incidental accompaniments of the very powerful isogenizing effect of the genetic system in these parthenogenetic strains. Indeed, the data show that partial isolation from sexual reproduction can arise wholly by chance. This may have some relevance to theories of species origin which are accompanied by a strong initial founder effect.
对八个全雌实验室品系的交配倾向进行了测量。这些品系完全同基因，但每个品系都有不同的过往历史。在所有情况下，交配倾向均显著低于双性对照；在某些情况下，交配速度低至十分之一。来自同一野生品系的四个品系中的三个不仅与亲本品系不同，而且彼此也不同。最近通过从同一自然种群中选择孤雌生殖获得的两个品系之间存在极显著差异。如果将来自这两个品系的雌性在同一小瓶中饲养在一起，其中一个品系似乎会产生一种物质，这种物质会降低对照雌性的交配倾向。由于在测试之前没有对任何品系进行行为选择，这些行为似乎是这些孤雌生殖品系中强大的同基因化效应的偶然伴随现象。事实上，数据表明与有性繁殖的部分隔离可能完全是偶然产生的。这可能与伴随着强烈初始奠基者效应的物种起源理论有一定关联。
