Next Article in Journal
Bending Stiffness of Hybrid Wood-Metal Composite Beams: An Experimentally Validated Numerical Model
Next Article in Special Issue
The Bamboo Rhizome Evolution in China Is Driven by Geographical Isolation and Trait Differentiation
Previous Article in Journal
Assessing Forest Structural and Topographic Effects on Habitat Productivity for the Endangered Apennine Brown Bear
Previous Article in Special Issue
Epigenetic Integrity of Orthodox Seeds Stored under Conventional and Cryogenic Conditions
Article

Study on the Genetic Structure Based on Geographic Populations of the Endangered Tree Species: Liriodendron chinense

1
Co-Innovation Center for Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China
2
The Key Laboratory of Horticultural Plant Genetic and Improvement of Jiangxi Province, Institute of Biological Resources, Jiangxi Academy of Sciences, Nanchang 330096, China
*
Author to whom correspondence should be addressed.
Peng-Yan Zhou and Li-Xing Hui contributed equal.
Academic Editor: Anna Katarzyna Jasinska
Forests 2021, 12(7), 917; https://doi.org/10.3390/f12070917
Received: 21 June 2021 / Revised: 9 July 2021 / Accepted: 12 July 2021 / Published: 14 July 2021
Liriodendron chinense (Hemsley) Sargent is a Class II protected plant in China as natural populations are on the verge of extinction. There is still a lack of systematic research on the genetic resources of its geographic populations. In this study, we used 20 pairs of SSR markers with high polymorphism to analyze a total of 808 L. chinense samples from 22 regions, and 63 Liriodendron tulipifera Linn samples from 2 regions were used as a comparison group. The results revealed a total of 78 alleles in L. chinense, and the average expected heterozygosity (He) was 0.558, showing a low level of genetic diversity. The degree of differentiation of L. chinense was high, with the differentiation coefficient (Fst) as high as 0.302, which is related to the low gene flow (Nm = 0.578). Based on the genetic structure, principal coordinate analysis (PCoA) and phylogenetic analysis of 24 Liriodendron spp. populations, L. chinense and L. tulipifera had obvious differentiation, while the differentiation between L. chinense geographic populations was very large and irregular. Inbreeding appears within the geographic populations, and the level of genetic diversity is very low. In order to protect the genetic diversity of L. chinense, in addition to protecting the existing population as much as possible, artificial cultivation should introduce materials from multiple populations. View Full-Text
Keywords: conservation biology; genetic diversity; genetic structure; Liriodendron chinense; phylogeography; species distribution pattern conservation biology; genetic diversity; genetic structure; Liriodendron chinense; phylogeography; species distribution pattern
Show Figures

Figure 1

MDPI and ACS Style

Zhou, P.-Y.; Hui, L.-X.; Huang, S.-J.; Ni, Z.-X.; Yu, F.-X.; Xu, L.-A. Study on the Genetic Structure Based on Geographic Populations of the Endangered Tree Species: Liriodendron chinense. Forests 2021, 12, 917. https://doi.org/10.3390/f12070917

AMA Style

Zhou P-Y, Hui L-X, Huang S-J, Ni Z-X, Yu F-X, Xu L-A. Study on the Genetic Structure Based on Geographic Populations of the Endangered Tree Species: Liriodendron chinense. Forests. 2021; 12(7):917. https://doi.org/10.3390/f12070917

Chicago/Turabian Style

Zhou, Peng-Yan, Li-Xing Hui, Shu-Jing Huang, Zhou-Xian Ni, Fa-Xin Yu, and Li-An Xu. 2021. "Study on the Genetic Structure Based on Geographic Populations of the Endangered Tree Species: Liriodendron chinense" Forests 12, no. 7: 917. https://doi.org/10.3390/f12070917

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop