Biologia plantarum 56:283-291, 2012 | DOI: 10.1007/s10535-012-0088-0
The genetic diversity and ancestral relationships of a number ofTrifolium species was revealed by using the amplified fragment length polymorphism (AFLP) and the random amplified polymorphic DNA (RAPD) markers. Both markers produced few species-specific markers. Using distance and parsimony methods, inNTSYS-pc andPAUP software programs, we clearly differentiated the accessions of white clover from other closely related progenitors. The phylogenetic trees, produced byPAUP, also reinforced the close affinity ofT. nigrescens and the allopolyploid white clover in support of former views that this diploid species could have been the donor of one of two genomes of the allotetraploidT. repens. In addition, the dendrograms, produced byNTSYS-pc, also indicated close affinity ofT. nigrescens andT. occidentale to the accessions ofT. repens. These data is congruent with karyological and phylogenetic affinities between the white clover andT. occidentale. The relationships between the examined accessions, in theT. repens gene pool, may be regarded to indicate the presence of shared alleles betweenT. repens,T. occidentale andT. uniflorum. Further,T. occidentale showed close phylogenetic relations toT. pallescens.
Received: May 1, 2010; Accepted: November 12, 2010; Published: June 1, 2012 Show citation