Huang Wenda, Zhao Xueyong, Zhao Xin, Li Yulin, Lian Jie
Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou China.
Ecol Evol. 2016 Oct 20;6(22):8256-8266. doi: 10.1002/ece3.2549. eCollection 2016 Nov.
(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 have high genetic diversity, and environmental gradients affected genetic diversity of 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.
（豆科）是中国北方一种占主导地位的顶级半灌木物种。我们利用简单重复序列间标记评估了从中国北方科尔沁沙地三个不同环境梯度采样的种群内部和种群之间的遗传变异，并研究了遗传多样性与环境因素之间可能存在的关系。结果表明，具有较高的遗传多样性，环境梯度影响了种群的遗传多样性。所有种群的遗传多样性受到许多环境因素的影响，并且还与温暖指数和土壤有效磷（SOP）浓度相关。这些结果对干旱和半干旱地区这些退化生态系统的恢复和管理具有重要意义。
