differentiation

The genetics of naturalization: A comparison of morphological variation within and between populations of Agrostis capillaris L as an exotic in New Zealand and as a native in Britain

Previous work in New Zealand has shewn that genetic variation within populations of Agrostis capillaris can be comparable to that between populations, even between populations over a very wide environmental range. To determine whether this reflects the recent advent of A. capillaris in New Zealand, with a small founding gene pool and a short time for ecotypic differentiation, populations from a comparable range of environments were sampled randomly in the same way in Britain.