As we have previously reported, Amur tiger populations have dropped precipitously in recent years to around 250 animals, and the species faces a genetic bottleneck that puts it at risk of inbreeding.

我们之前的报道指出，它们的数量在最近几年锐减到250只左右，这个种族面临着遗传瓶颈，这将它们推入了近亲繁殖的危险境地。

youdao

Genetic variation is major study content in conservation genetics. In small population, genetic variation loss because of bottleneck effect, inbreeding, founder effect, and genetic drift.

遗传变异性是遗传保护研究的主要内容，在小种群中，往往由于瓶颈效应、近亲繁殖、奠基者效应和遗传漂变等使得遗传变异性减少。

youdao

Genetic research experts agreed that developments in genetics will profoundly effect medicine for the better, they could also cause a significant bottleneck for health care organizations.

基因研究 专家认为遗传学方面基因研究的进步能够显著改进用药状况，它们也能够使得现在的医疗 保健机构处于上下两难的瓶颈状态。

youdao

So it's been through genetic bottleneck.

NPR: Startling New Evidence Cancer Is Contagious

Some scientists have argued that the winter conditions this would have induced could have posed an immense challenge to early humans and have pointed to some genetic studies that indicated our ancestors likely experienced a dramatic drop in numbers - a population "bottleneck" - around the time of the eruption.

BBC: Toba super-volcano catastrophe idea 'dismissed'