Mycosystema 6: 25-29, 1993


VARIATIONS IN ITS2 SEQUENCES OF NUCLEAR rDNA FORM TWO LASALLIA SPECIES AND THEIR SYSTEMATIC SIGNIFICANCE

NIU YONG-CHUN and WEI JIANG-CHUN
Systematic Mycologh & Lichenology Laboratory, Institute of Microbiology, Academia Sinica, Beijing


ABSTRACT: The internal transcribed spacer 2 (ITS2) of nuclear rDNA was amplified by PCR from total DNA extracted from sublecanorine apothecia of Lasallia papulosa (Ach.) Llano and L. rossica Dombr. lacking algal cell, and their sequences were determined. A systematic analysis based on a combination of the molecular and morphological characters with chemical data and distribution patterns is given.