Progenitor-derivative speciation in Pozoa (Apiaceae, Azorelloideae) of the southern Andes.

ABSTRACT:

Background and aims

Studies examining patterns and processes of speciation in South America are fewer than in North America and Europe. One of the least well documented processes has been progenitor-derivative speciation. A particularly instructive example occurs in the southern Andes in the genus Pozoa (Apiaceae, Azorelloideae), which consists of only two diploid outcrossing species, the widespread P. coriacea and the geographically and ecologically restricted P. volcanica. This paper tests the hypothesis that the latter species originated from the former through local geographical and ecological isolation by progenitor-derivative speciation.

Methods

DNA sequences were analysed from Pozoa and the related South American genera Asteriscium, Eremocharis and Gymnophyton from no

SUBMITTER: Lopez P 

PROVIDER: S-EPMC3268536 | biostudies-literature | 2012 Feb

REPOSITORIES: biostudies-literature