Analysis of genetic diversity from different geographical populations in Khaya senegalensis

The genetic diversity and differentiations among five geographic populations of Khaya senegalensis were analyzed using sequence-related amplified polymorphism ( SRAP ) markers in this study. 28 primers were chosen from 200 for SRAP polymorphic analysis. The results showed that 59 bands were polymorphic, making up 76.62% of the total 77 amplified bands. The genetic distance among different K. senegalensis populations was 0.036 1 - 0.131 7. The general Nei's genetic diversity index was 0.209 3. The general Shannon's information index was 0.330 0. Genetic variation was mainly from individuals within groups (70.04%), and the gene flow between populations (Nm) was 1.185 8.