针茅属

A preliminary observation on the distribution and ecological environment of Stipa in western Inner Mongolia.

内蒙古中西部针茅属种的分布及其生态环境的初步观察。

Stipa represents species that have experienced a long evolutionary history that has resulted in high genetic diversity.

针茅属植物是经过长期的进化和选择保留下来的物种，具有丰富的遗传多样性和强的进化趋势。

Keywords: Stipa L.; genetic diversity; ecological variation

中文关键词：针茅属；遗传多样性；生态分化

By the method of polymerase chain reaction-single strand conformation polymorphism, this paper studied the genetic polymorphism of exon 1 and intron 1 in the aquaporin gene of seven species of Stipa in the meadow steppe, typical steppe, and desert steppe of Inner Mongolia.

以分布于内蒙古的草甸草原、典型草原、荒漠草原上的7种针茅属植物为材料，利用聚合酶链反应－单链构象多态性方法，分析了水孔蛋白基因的外显子1和内含子1的遗传多态性。

Natural conditions and grazing pressure affected gene flow and their frequency, which resulted in various ecotypes.

不同的地理条件和放牧利用压力对基因流和基因频率发生影响，决定了分子变异在时空上的分布，使得针茅属植物种间、种内不同种群间发生形态、遗传分化的原因。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。