Mycological Progress

, Volume 17, Issue 7, pp 841–853 | Cite as

Diaporthe from walnut tree (Juglans regia) in China, with insight of the Diaporthe eres complex

  • XinLei Fan
  • Qin Yang
  • Jadson D. P. Bezerra
  • Lourdes V. Alvarez
  • ChengMing Tian
Original Article


Species of Diaporthe are important plant pathogenic fungi that commonly occur on a wide range of hosts. They are relatively difficult to identify due to their extreme similarity in morphology and confusing multigene phylogeny, especially in the Diaporthe eres complex. In the present study, isolates were collected from diseased branches of Juglans regia in China. Most strains were clustered into the D. eres species complex based on the combined internal transcribed spacer (ITS) region, partial calmodulin (CAL), histone H3 (HIS), translation elongation factor 1-alpha (TEF1-α) and beta-tubulin (TUB) genes. To focus on this complex, CAL, TEF1-α and TUB were selected in further phylogenetic analyses that showed a better topology compared with combined five-gene phylogeny. Results revealed that all strains which clustered in the Diaporthe eres complex from Juglans regia in China were Diaporthe eres. Results suggested a revised species criterion in the Diaporthe eres complex. The current study uncovered a new species here described as Diaporthe. tibetensis.


Diaporthales Molecular phylogeny New species Species complex Taxonomy 



This study is financed by Fundamental Research Funds for the Central Universities (Project No.: BLX201613) and National Natural Science Foundation of China (Project No.: 31670647). CM Tian and XL Fan thank Chungen Piao, Minwei Guo (China Forestry Culture Collection Center (CFCC), Chinese Academy of Forestry, Beijing. JDP Bezerra thanks Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and the Fundação de Amparo à Ciência e Tecnologia de Pernambuco (FACEPE) of Brazil for scholarships.


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Copyright information

© German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • XinLei Fan
    • 1
  • Qin Yang
    • 1
  • Jadson D. P. Bezerra
    • 2
  • Lourdes V. Alvarez
    • 3
  • ChengMing Tian
    • 1
  1. 1.The Key Laboratory for Silviculture and Conservation of Ministry of EducationBeijing Forestry UniversityBeijingChina
  2. 2.Departamento de Micologia Prof. Chaves BatistaUniversidade Federal de PernambucoRecifeBrazil
  3. 3.Department of Biology, College of SciencePolytechnic University of the PhilippinesManilaPhilippines

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