Genetic diversity of Potamogeton pectinatus L. in relation to species diversity in a pair of lakes of contrasting trophic levels |
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| Institution: | 1. Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, Hubei, PR China;2. Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences, Wuhan, 430074, Hubei, PR China;3. Graduate School of Human and Environmental Studies, Kyoto University, Kyoto 606-8501, Japan;4. Laboratory of Plant Conservation Science, Faculty of Agriculture, Meijo University, Aichi 468-8502, Japan;1. School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, China;2. Material Corrosion and Protection Key Laboratory of Sichuan Province, Zigong 643000, China;3. Institute of Materials and Chemical Engineering, Sichuan University of Science and Engineering, Zigong 643000, China;1. U.S. Department of Agriculture, Agricultural Research Service, Exotic & Invasive Weed Research, 800 Buchanan Street, Albany, CA 94710, USA;2. University of California Davis, Department of Plant Sciences, Mail Stop 4, University of California, 1 Shields Avenue, Davis, CA 95616, USA;1. Institute for Global Food Security, School of Biological Sciences, Queen’s University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, Northern Ireland, UK;2. Queen’s Marine Laboratory, Queen’s University Belfast, 12-13 The Strand, Portaferry, BT22 1PF, Northern Ireland, UK;3. School of Natural and Built Environment, Queen’s University Belfast, Belfast, BT9 5BN, UK;4. Great Lakes Institute for Environmental Research, University of Windsor, Windsor, ON N9B 3P4, Canada |
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| Abstract: | Understanding the correlation between genetic diversity and species diversity in freshwater communities is important to elucidate the influences of local selective forces on the genetic diversity of local aquatic plant populations across different communities. This study employed amplified fragment length polymorphism (AFLP) to assess the genetic diversity of Potamogeton pectinatus L. populations between two sister-lakes with contrasting trophic levels, eutrophic and oligotrophic, in the Yunnan Plateau in southwest of China. The results showed high genetic differentiation between eutrophic lake and oligotrophic lake. The genetic distances between P. pectinatus populations were significantly correlated with the species evenness, but not with difference in species richness of aquatic plant communities. The results underpinned that genetic diversity at inter-population levels and local species diversity in plant communities are positively correlated. In addition, our results also suggested that habitat types might play an important role in the genetic diversity of the P. pectinatus populations between these two lakes. |
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| Keywords: | AFLP Genetic diversity Species diversity Habitat variability |
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