根的总皂甙含量与海拔高度呈显著的负相关，其他器官与海拔高度相关不显著。

The total saponin content in roots was significantly negative correlation with altitude, while there was no significant correlation between that in the other organs and altitude.

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白马鸡群体的夜栖地选择与坡度、乔木盖度和乔木高度正相关，与草本盖度负相关。

The occurrence of the roosting sites was positively related to degree of slope, wood cover and wood height, and negatively related to herb cover.

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不管哪种原因为主，有高度遗传相关（不管是正相关还是负相关）的性状总是可以认为受同一连锁群的基因所控制。

The major cause of genetic correlation between traits may be due to linkage, or pleiotropy, or both, not pleiotropy only.

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