RESUMO
<p><b>OBJECTIVE</b>To study the genetic background of Evodia rutaecarpa by AFLP, and analyze the genetic diversity of E. rutaecarpa from different areas.</p><p><b>METHOD</b>E. rutaecarpa genomic DNA was extracted. The AFLP reaction system was established and AFLP primer pairs were chosen for the analysis. Forty-six individuals of E. rutaecarpa which from five provinces were analyzed by AFLP. The NTSYS-pc 2.1 software was used for cluster analysis.</p><p><b>RESULT</b>Six out of the original 72 pairs of primers were optimized for the study; AFLP analysis revealed the similarity coefficient of 0.53, the samples of E. rutaecarpa var. officinalis from Zhejiang province was separated from other accessions; E. rutaecarpa var. officinalis also showed more pronounced genetic variation than the E. rutaecarpa, and strong geo-related relevance.</p><p><b>CONCLUSION</b>Variance of genetic background of E. rutaecarpa are large, AFLP analysis method can obviously identify different varieties of E. rutaecarpa, and can detect the genetic characteristics of inter-regional differences.</p>