Spatial Distribution Pattern and Genetic Diversity of Quercus wutaishanica Mayr Population in Loess Plateau of China
Spatial Distribution Pattern and Genetic Diversity of Quercus wutaishanica Mayr Population in Loess Plateau of China
复制标题
中国黄土高原五台山栎种群空间分布格局及遗传多样性
DOI：
10.3390/f13091375
复制
发表时间：
2022-09-01
期刊：
影响因子：
2.9
通讯作者：
Yue, Ming
中科院分区：
文献类型：
--
作者：
Hu, Dong;Xu, Yao;Yue, Ming
五台山栎林影响着黄土高原地区的生态环境和气候特征，具有重要的生态作用。然而，我们对五台山栎的遗传多样性和空间分布的了解仍然相对较少。本研究采用简单重复序列法对五台山刺参的遗传多样性进行了评价，并利用点图法分析了其空间分布格局和种内关系。结果表明，五台山栎种群的直径结构为倒j型，种群数量呈增长趋势。此外，该种群在小范围内保持了较高的遗传多样性。由于分散的限制，五台山刺槐幼苗（胸径< 1 cm）的空间分布格局在小尺度上倾向于聚集，聚集程度随空间尺度的增大而降低。然而，树木（胸径约5厘米）和树苗（胸径约1厘米）
The Quercus wutaishanica forest influences the ecological environment and climate characteristics and plays an important ecological role in the Loess Plateau region. However, we still know relatively little about the genetic diversity and spatial distribution of Q. wutaishanica. Here, we assessed the genetic diversity of Q. wutaishanica using simple sequence repeats and used the point pattern method to analyze the spatial distribution patterns as well as intraspecific relationships. Our results indicate that the diameter structure of the Q. wutaishanica population was inverted J-type, showing a growing population. In addition, the population maintained high genetic diversity on a small scale. Due to dispersal constraints, the spatial distribution pattern of Q. wutaishanica seedlings (DBH < 1 cm) tended to aggregate at small scales and the degree of aggregation decreased with increasing spatial scale. However, trees (DBH > 5 cm) and saplings (1 cm