Evolution of the polyploid north-west Iberian Leucanthemum pluriflorum clan (Compositae, Anthemideae) based on plastid DNA sequence variation and AFLP fingerprinting.

ABSTRACT:

Background and aims

The genus Leucanthemum is a species-rich polyploid complex from southern and central Europe, comprising 41 species with ploidy ranging from 2x to 22x. The present contribution aims at reconstructing the evolutionary history of a geographically isolated species group (the L. pluriflorum clan) from the north-west Iberian Peninsula comprising the diploid L. pluriflorum, the tetraploids L. ircutianum subsp. pseudosylvaticum and L. × corunnense (a putative hybrid taxon based on crossing between L. pluriflorum and L. merinoi), and the hexaploids L. sylvaticum and L. merinoi.

Methods

Chromosome number variation (determined flow cytometrically) and sequence variation were analysed for two intergenic spacer regions on the plastid genome (psbA-trnH and trnC-petN) f

SUBMITTER: Greiner R 

PROVIDER: S-EPMC3662516 | biostudies-literature | 2013 Jun

REPOSITORIES: biostudies-literature