Effects of environmental factors on genetic diversity of Caragana microphylla in Horqin Sandy Land,northeast China |
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Authors: | Wenda Huang Xueyong Zhao Xin Zhao Yulin Li Jie Lian |
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Affiliation: | Northwest Institute of Eco‐Environment and Resources, Chinese Academy of Sciences, Lanzhou, China |
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Abstract: | Caragana microphylla (Leguminosae) is a dominant climax semishrub species in northern China. We evaluated genetic variation within and among populations sampled from three different environmental gradients in Horqin Sandy Land in northern China using intersimple sequence repeats markers and investigated the possible existence of relationships between genetic diversity and environmental factors. The results showed that C. microphylla have high genetic diversity, and environmental gradients affected genetic diversity of C. microphylla populations. Genetic diversity of all populations was affected by many environmental factors and as well correlated with warm index and soil Olsen phosphorus (SOP) concentration. These results have important implications for restoration and management of these degraded ecosystems in arid and semi‐arid areas. |
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Keywords: |
Caragana microphylla
environmental factors genetic diversity Horqin Sandy Land intersimple sequence repeat |
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