Therefore

ITS region was not used in the combined analysis. The conflict among gene trees can be reasonably explained by recombination among individuals within a species (Milgroom 1996; Geiser et al. 1998; Matute et al. 2006). However, selleckchem in each of the species within D. eres complex, either the genealogical nondiscordance rule (Dettman et al. 2003a) or the genealogical concordance criterion has been fulfilled, revealing that there are significant barriers to gene flow among these species defined. The seven gene analysis excluding the discordant ITS data resulted in a robust tree congruent with the EF1-α and other single genes. The species boundaries within the D. eres species complex were resolved in this study by application of criteria of phylogenetic species recognition (Taylor et al. 2000; Dettman et al. 2003a) revealing cryptic diversity that may be obscured by biological this website species recognition, morphology and discordance of genes. Several similar conclusions have been made in other fungal

groups with cryptic species diversity, which also display little or no morphological variation (Dettman et al. 2003a, 2006; Walker et al. 2012; Weir et al. 2012; Manamgoda et al. 2013; Laurence et al. 2014). The structure of the mating type genes and the association with Apn2 genes in Diaporthe were illustrated by Kanematsu et al. (2007). DNA-lyase genes have not traditionally been used as molecular markers in fungi; however, the association with mating type genes of fungi is known in relation to their structure. The Apn2 region has recently been used in conflicting genera like Colletotrichum (Crouch and Tomaso-Peterson 2012; Silva et al. 2012b; Doyle et al. 2013; Sharma et al. 2013) and the Apn2 and Apn2/MAT-IGS

(intergenic spacer between 3’ end of the DNA lyase and mating type locus MAT1-2) genetic markers recommended as a better marker in disentangling the C. gloeosporioides species complex (Silva et al. 2012a, b). Mating type genes of Diaporthe were amplified in several previous studies and utilised in phylogenetic analyses (Santos Farnesyltransferase et al. 2010, 2011). Portions of the α-1 box in MAT 1-1-1 gene (141 bp) and a portion of HMG domain of MAT 1-2-1 (229 bp) regions were shown to have less utility as phylogenetic markers than for screening mating types of isolates (Santos et al. 2010). The MAT phylogenetic trees were strongly correlated with EF1-α phylogenetic tree. However, MAT genes were less informative for more closely related species that could potentially be regarded as one biological species. At least some of taxa in species complexes might be regarded as reproductively compatible, but are distinct phylogenetic species. In our analyses of the available mating type sequences of the D. eres species complex with those generated by Santos et al.