Ks. Ko et al., Phylogenetic relationships of Hapalopilus and related genera inferred frommitochondrial small subunit ribosomal DNA sequences, MYCOLOGIA, 93(2), 2001, pp. 270-276
To elucidate the evolution of Hapalopilus and related genera, partial mitoc
hondrial small subunit ribosomal DNAs of 13 species were sequenced and phyl
ogenetically analyzed. Both neighbor-joining and parsimony trees showed tha
t species with polyporic acid have evolved several times and that Ha palopi
lus, Lopharia, Porostereum and Phanerochaete were all polyphyletic. The mai
n Hapalopilus group consisted of four species of Hapalopilus and Porostereu
m friesii, while Hapalopilus salmonicolor (= Sarcoporia salmonicolor) came
out close to the species of Irpex and Oxyporus and proved to be a distinct
taxon.