lineage 考研专八

1.8.a pedigreed animal of unmixed lineage; used especially of horses.

纯种统的动物；通特别指纯种马。

2.Cook seems to have been the first to coin the term \'speciation\' for the splitting of lineages or \'cladogenesis,\' as opposed to \'anagenesis\' or \'phyletic evolution\' occurring within lineages.

这一术语与发生在世系内的“前进演化”或“种族的进化”这些提法相抵触。

3.Take a lineage of microscopic marine animals known as bdelloid rotifers.Most rotifers reproduce sexually, but bdelloid rotifers abandoned sex about 100 million years ago.

就拿海洋中的微小动物蛭形轮虫来说，大部份轮虫行有性生殖，但是蛭形轮虫已经把性丢开约一亿年了。

4.This duplication acceleration within the ancestral species is significant when compared to lineage-specific rate estimates even after accounting for copy-number polymorphism and homoplasy.

分，在灵长类的分支变成非洲大猩猩和人类的过程中，这些复制的数量开始增加，同时，越来越多传统的基因变异开始缓慢减少。