Geographical locations of the study sites in China (Dashed line is the distribution range of <i>Q. variabilis</i>) (ND = northern distribution, Zhuang-He in NE China, MD = middle distribution, He-Feng in central China, SD = southern distribution, An-Ning in SW China. WH = Wu-Han in Hubei province, central China).

<p>Geographical locations of the study sites in China (Dashed line is the distribution range of <i>Q. variabilis</i>) (ND = northern distribution, Zhuang-He in NE China, MD = middle distribution, He-Feng in central China, SD = southern distribution, An-Ning in SW China. WH = Wu-Han in Hubei province, central China).