Abstract
We are studying seed and fruit fungi in Thailand and made several sexual morph collections of Diaporthe rosae from dried fruits of Magnolia champaca and Senna siamea. The sexual morphs were linked to the asexual morphs based on molecular data, and morphological similarity with the asexual morph produced on PDA. The asexual morph of D. rosae was previously reported from a dead pedicel of Rosa sp. (Rosaceae) from the same location as its sexual morph. The sexual morph is characterized by 34-46 x 6.7-9 mu m asci and 10-12.5 x 2.8-3.6 mu m, ellipsoidal ascospores. We also provide LSU, ITS, tub2 and tef sequence data of D. rosae strains which are deposited in GenBank. The molecular analyses were performed in the ARB software environment and the pipeline is provided as supplementary data.