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Genetic diversity of Tricholoma matsutake in Yunnan Province 总被引:3,自引:0,他引:3
SHA Tao ZHANG HanBo DING HuaSun LI ZongJu CHENG LiZhong ZHAO ZhiWei ZHANG YaPing 《科学通报(英文版)》2007,52(9):1212-1216
To investigate the genetic diversity of Tricholoma matsutake,we studied ITS and IGS1 sequences and PCR polymorphism of a retrotransposon in 56 fruit bodies collected from 13 counties of 9 regions in Yunnan Province. We found one and three haplotypes based on ITS and IGS1 sequences,respectively. Moreover,there was no significant difference in PCR polymorphism of the retrotransposon among different populations. Compared with Jilin Province(China) and Japanese populations,although Yun-nan was highly homogenous to Japanese populations,low genetic diversity of T. matsutake in Yunnan did not support the view that this species originated from Yunnan. 相似文献
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There exists large-scale lightning in Saturn’s water cloud. Based on the powerful moist convection in the water cloud, we establish a thermal-induced convective model to interpret the mechanism for the processes of charge generation and separation. We also estimate the breakdown field of Saturn’s atmosphere quantitatively and interpret the discharge process. 相似文献
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