Genetic diversity and population structure of Opisthopappus longilobus and Opisthopappus taihangensis (Asteraceae) in China determined using sequence related amplified polymorphism markers |
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| Institution: | 1. College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin 150001, PR China;2. College of Mechanical and Electrical Engineering, Harbin Engineering University, Harbin 150001, PR China;1. University of Natural Resources and Life Sciences, Vienna, Austria;2. Department of Wetland Ecology, Karlsruhe Institute of Technology (KIT), Rastatt, Germany;3. Department of Forest Genetics, Austrian Federal Research Centre for Forests (BFW), Vienna, Austria;4. Environmental Science Program, University of Lethbridge, Canada;1. Botanical Garden, Faculty of Science, Osaka City University, Kisaichi, Katano, Osaka 576-0004, Japan;2. Department of Botany, National Museum of Nature and Science, Tsukuba 305-0005, Japan;3. Botanischer Garten und Institut für Systematische Botanik, Universität, Zollikerstrasse 107, 8008 Zürich, Switzerland;1. Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, 430074 Wuhan, China;2. University of Chinese Academy of Sciences, 100049 Beijing, China;3. Department of Ecology, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, 510275 Guangzhou, China;4. Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, 430074 Wuhan, China;1. Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan 430074, China;2. University of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | The genetic diversity and structure of four Opisthopappus longilobus and nine Opisthopappus taihangensis populations from Mts. Taihang were analyzed using SRAP markers. The results showed that O. longilobus (PPB = 95.16%, H = 0.349, I = 0.517) and O. taihangensis populations (PPB = 94.58%, H = 0.332, I = 0.504) had high genetic diversity. The genetic diversity within populations varied according to two species. Low genetic differentiation was detected among O. longilobus (ΦST = 0.105) and O. taihangensis (ΦST = 0.188) populations, respectively. Significantly genetic variation was found between O. longilobus and O. taihangensis (ΦST = 0.232). The dendrogram generated from pairwise genetic distance among all populations showed two distinct clusters, each corresponding to one species. A Mantel test revealed insignificant positive correlation between genetic distances and geographic distances (rO. longilobus = 0.3021; rO. taihangensis = 0.3658; P > 0.05). Those results indicated that self-compatibility, effective gene flow, biological traits, and historical factors may be the main factors causing geographical differentiation in the structure of O. longilobus and O. taihangensis populations. |
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| Keywords: | SRAP Genetic diversity Population structure |
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