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During our biodiversity investigations in Tibet, China, typical Cytospora canker symptoms were observed on branches of hosts Myricaria paniculate , Prunus cerasifera and Sibiraea angustata . Samples were studied, based on morphological features coupled with multigene phylogenetic analyses of ITS, act , rpb2 , tef1 and tub2 sequence data, which revealed two new species ( Cytospora myricicola sp. nov. and C. sibiraeicola sp. nov. ) and a known species ( C. populina ). In addition, Cytospora populina is newly discovered on the host Prunus cerasifera and in Tibet.
Li et al. (Tue,) studied this question.