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Variations in electrical impedance and phase angle among seedlings of pinus densata and parental species in pinus tabuliformis habitat environment

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Journal of Forestry Research 2015年第3期26卷 777-783页

作者： Xinyu Chen Huwei Yuan Xiange Hu Jingxiang Meng Xianqing Zhou Xiao-Ru Wang Yue Li National Engineering Laboratory for Forest Tree Breeding Key Laboratory of Genetic and Breeding in Forest Trees and Ornamental Plants of Ministry of Education College of Biological Sciences and Technology Beijing Forestry University State-owned Forest Farm in Hebei Province Department of Ecology and Environmental Science UmeUniversity SE-901 87 Ume Sweden

Electrical impedance （El） and phase angle （PHI） parameters in AC impedance spectroscopy are important electrical parameters in the study of medical pathology. However, little is known about their application in variation and genetic relationship studies of forest trees. In order to test whether impedance parameters could be used in genetic relationship analysis among conifer species, E1 and PHI were measured in a seedling experiment test composed of pinus tabuliformis, pinus yunnanensis, and pinus densata in a habitat of pinus tabuliformis. The results showed that variations in both EI and PHI among species were sig- nificant in different electric frequencies, and the EI and PHI values measured in the two populations of P. densata were between the two parental species, P. yunnanensis and P. tabuliformis. These results show that these two impedance parameters could reflect the genetic relationship among pine species. This was the first time using the two AC impedance spectroscopy parameters to test the genetic relationship analysis between tree species, and would be a hopeful novelreference methodology for future studies in evolution and genetic variation of tree species.

关键词： Electrical impedance Phase angle pinustabuliformis pinus yunnanensis . pinus densata . seedlingneedle Genetic variation

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