Genetic Diversity Of Variation Types Of Phyllostachys Violascens

Phyllostachys violascens is an execellent economic bamboo species in China, which had many variations types by the long natural evolution and artificial cultivation.The morphological characteristics, rhythm of bamboo shooting and DNA genetic variation of 16 variation types of Ph.violascens were studied. The major results were as follows:1, Such basic statistical analysis as the mean, variance, standard deviation, CV(coefficient of variation)to the morphological characters of 16 variation types of Ph.violascens indicated that great diversity existed among different variation types, with ranging from 10.1%-41.4%. The height under branch has the highest variation,Diameter at breast height and The plant height was followed. The variation types of Ph.violascens were divided into 5 clusters by morphological characteristics, and which together clusters with similar morphological characteristics.2, Based on the surveys of bamboo shoots growth of 16 variation types of Ph.violascens, the results show that Ph.violascens cv. Wanggan, Ph.violascens cv. Hongke emerge shoots earlier than Ph.violascens cv. Atrovaginis. Variation of the emerging shoots rates and grown bamboo rates are remarkable in different variation types.3, Genetic diversity of 16 variation types of Ph.violascens was evaluated using AFLP, SRAP and ACGM markers. 15 AFLP primer pairs, 15 SRAP primer pairs and 38 ACGM primers generated 253, 152 and 75 polymorphic bands, respectively. These 3 molecular markers had consistent result from the clustering analysis by UPGMA, the significant correlation between AFLP, SRAP, and ACGM markers was observed. UPGMA method cluster analysis showed: (1) There are abundant genetic variation among different variation types of Ph.violascens; (2) The variation types of Ph.violascens were divided into 4 clusters by UPGMA.