Survey and Analysis of Populus davidiana Ploidy in Heilongjiang Province
[Objective]Polyploidy is characterized by organ gigantism and strong resistance,and screening polyploidy has been one of the methods to obtain excellent varieties of forest trees.Populus davidiana has a fast growth rate and is an important species on soil improvement and windbreak and sand fixation control projects.Therefore,investigating the ploidy of Populus davidiana in different distribution areas is the guiding significance for screening excellent poplar polyploids.[Method]Ploidy analysis of poplars from Daxing'an Mountains,Yichun city and Mudanjiang city were carried out using the PA and fluorescence in situ hybridization(FISH).[Result]Six triploid plants were present in 31 poplar samples from Daxing'an Mountains.In contrast,14 and 44 poplar samples from Yichun city and Mudanjiang city were diploid plants.[Conclusion]Natural triploid Populus davidiana exists in Daxing'an Mountains.
Populus davidianatriploidfluorescence in situ hybridizationploidy analysis
万方数据
维普
