Genetic Diversity and Population Structure of Corylus yunnanensis (Franch.) A. Camus Using Microsatellite Markers in Sichuan Province

Corylus yunnanensis (Franch.) A. Camus is a deciduous shrub, native to the Hengduan Mountain of Qinghai–Tibetan Plateau, and an economically ecologically important woody crop species. In present study, one hundred fifty trees sampled from ten populations C. in Sichuan Province were investigated assess population genetic variation using nine SSR markers. The results revealed that has average value 12.111 alleles, 3.376 effective expected heterozygosity 0.648, observed 0.630, presenting relatively high level diversity. Maoxian Wenchuan Aba Prefecture expressed highest diversity, whereas Hanyuan Muli showed lowest. Moreover, differentiation averaged 0.106. Correspondingly, AMOVA 87% total variance was accounted for within populations, only 13% among populations. Both UPGMA Bayesian STRUCTURE clustering suggested could fall into three clusters: population, Ya’an Ganzi Liangshan Prefecture, indicating significant geographic distribution, which also confirmed by Mantel test. Our study provide better understanding serve valuable information improvement yunnanensis.