Genetic diversity and population structure of Armillaria luteo-virens (Physalacriaceae) in Qinghai-Tibet Plateau revealed by SSR markers |
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| Institution: | 1. Laboratory of Qinghai-Tibet Biological Evolution and Adaptation, Northwest Plateau Institute of Biology, Chinese Academy of Sciences, 59 Xiguan Avenue, Xining, Qinghai 810001, PR China;2. Key Laboratory of Eco-Environments of Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Chongqing 400715, PR China;3. University of Chinese Academy of Sciences, Beijing 100039, PR China;1. Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland;2. Department of Biological Science and Technology, Faculty of Engineering, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan;3. Department of Life System, Institute of Technology and Science, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan;1. Climate Change Research Centre, School of Biological, Earth and Environmental Sciences, The University of New South Wales, UNSW, Sydney, NSW 2052, Australia;2. Waikato Radiocarbon Dating Laboratory, University of Waikato, Private Bag 3105, Hamilton, New Zealand;3. National Institute of Water and Atmospheric Research, 41 Market Place, Auckland 1010, New Zealand;4. Department of Geography, Exeter University, Devon EX4 4RJ, United Kingdom |
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| Abstract: | Armillaria luteo-virens is a type of ectomycorrhiza whose fruit body is widely used as an edible mushroom in the Qinghai-Tibetan Plateau. In total, 404 individuals of A. luteo-virens from 23 geographically separate populations were analyzed using eight pairs of SSR markers. The average number of alleles among nine populations was 28.65 with a range from 20 to 38. The mean observed (HO) and expected (HE) heterozygosity ranged from 0.446 to 0.501 and from 0.499 to 0.554, respectively. An analysis of molecular variance (AMOVA) showed that most genetic variation occurred within populations (83.32%). The mean value of FST (0.176) suggested low genetic differentiation among populations. The 23 studied populations were divided into two main clusters based on the NJ dendrogram, which was also confirmed by STRUCTURE analysis. This study may aid in not only the protection of this species but also the management of genetic resources for future artificial cultivation. |
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| Keywords: | Genetic diversity Population structure Conservation Qinghai-Tibetan Plateau |
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