Fig. 2From: Population genetic analyses highlight an eastward dispersal of Puccinia striiformis f. sp. tritici from the Shaanxi province to the North China PlainPhylogenetic tree based on Nei’s genetic distance constructed using the unweighted pair group method with arithmetic mean (UPGMA) method at county level populations from Ningjin (HBA1), Daming (HBB1), Dancheng (HNA1), Xihua (HNA2), Lankao (HNB1), Fushan (SDA1), Yuncheng (SDB1), Mei (SXA1), Qishan (SXA2), Fengxiang (SXA3), Fufeng (SXA4), Long (SXA5), Qianyang (SXA6), Feng (SXA7), Xiyi (SXB1), Zhouzhi (SXB2), and Chenggu (SXC1)Back to article page