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Scientia Silvae Sinicae ›› 1999, Vol. 35 ›› Issue (3): 34-40.

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MOLECULAR GENETIC DIVERSITY OF PATHOGENIC FUNGAL GROUP CAUSING TREE CANKER Ⅰ.——EVIDENCE OF TAXA FOR DOTHIORELLA, DOTHICHIZA, CYTOSPORA AND CONIOTHYRIUM IN MOLECULAR LEVEL

Xingyao Zhang,Shiguang Zhao,Chungen Piao,Quan Lü,Xiuzhen Jia   

  1. The Research Institute of Forest Ecology, Environment and Protection, CAF Beijing 100091
  • Received:1998-12-20 Online:1999-05-25 Published:1999-05-25

Abstract:

The fungal group, including the genera of Dothiorella Sacc. (its sexual phase is Botryosphaeria Cas.), Dothichiza Lib., Cytospora Ehrenb. and Coniothyrium Sacc. presently are the most important forest pathogens in China. In this paper, the tested fifteen isolates of the group are divided into four clusters by the methods of 28S rDNA-PCR-RFLP and RAPD analyses. Each cluster just corresponds to one genus. So, the objectivity of the traditional taxonomy of these genera is proved in the molecular level.

Key words: Tree, Canker pathogenic fungi, 28SrDNA-PCR-RFLP, RAPD, Taxonomy