Current Research in Environmental and Applied Mycology, cilt.9, sa.1, ss.103-112, 2019 (Scopus)
Morchella is a species-rich genus in the family Morchellaceae, but phenotypic variations among species and subgeneric groupings are poorly understood. New collections of Morchella tridentina, a taxon with a problematic taxonomic history, are reported from Denizli province in southwestern Turkey based on morphology and molecular phylogeny. This is a new locality record for the Turkish mycobiota. Description of the morphological characteristics, including macro- and microphotographs are provided. Additionally, phylogenetic data, using the nrITS locus, and infrageneric relationships of M. tridentina within the Distantes section are given. Analyses of the nrITS showed that the lowest sequence divergence among in-group taxa was observed between M. angusticeps and M. eximioides, 0.002% (SE = 0.001). The highest sequence divergence with in-group taxa was found between M. tomentosa and M. semilibera, 0.956% (SE = 0.167), and between M. semilibera and M. tridentina, 0.866% (SE = 0.147). Finally, it was determined that M. exuberans was genetically the closest species to M. tridentina, 0.398% (SE = 0.054).