Kurtziana  vol.37 issue1; Abstract: S1852-59622012000100002

SciELO - Scientific Electronic Library Online

vol.37 issue1A new species of Laetiporus (Basidiomycota, Polyporales) from the Caribbean basin author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



  • Have no cited articlesCited by SciELO

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google



On-line version ISSN 1852-5962


RAJCHENBERG, Mario  and  PILDAIN, María Belén. Molecular studies reveal a speciation process within Ryvardenia cretacea (Polyporales, Basidiomycota). Kurtziana [online]. 2012, vol.37, n.1, pp. 7-13. ISSN 1852-5962.

rDNA sequentiation and phylogenetic analysis of the ITS region of strains of the brown-rot polypore Ryvardenia cretacea from Australia (Tasmania, Victoria) and Argentina (Patagonia) revealed the existence of two well supported clades. Each clade appears restricted to one side of the Pacific indicating a strong biogeographical isolation between strains and populations in the process of speciation. Nevertheless, detailed studies and comparisons did not show the existence of significant morphological differences. This fact, coupled with previously reported dikaryon x monosporic mating tests which showed biological compatibility between specimens from both regions, supports the maintenance of a complex but taxonomically single entity.

Keywords : Phylogeny; Polypores; Speciation.

        · abstract in Spanish     · text in English     · pdf in English