Population Structure Materials And Methods

31 Figure8. Unrooted neighbor-joining tree realized from the dissimilarity matrix. The tree shows 148 individuals of six oil palms Elaeis guineensis populations originated from Cameroon. Accessions are identi fied by different lines color according to the populations originated from Cameroon. Accessions are identified by diffrerent lines color according to the populations A125: red; A127: blue; A140: green; B01; yellow; B02: purple and B57: black 0.2 80 77 59 60 64 61 88 77 99 59 63 B02 B57 A140 A127 B01 A125 A125 A127 A127 A140 A127 32 Figure9. PCoA of 148 individuals in the six oil palm E. guineensis populations for the first two dimensions. It shows the conformation of the six populations into different groups B01, B02, B57 and A122, A127, and A150. Accessions are identi fied by different lines color according to the populations A125: red; A127: blue; A140: green; B01; yellow; B02:purple and B57: black.

3.4 Discussions

Characterization of wild African oil palm germplasm have been conducted by a number of research groups Kularatne et al., 2001, Hayati et al., 2004, Bakoume et al., 2007, Maizura et al., 2006, Arias et al., 2013. Most of the evaluations were conducted to elucidate genetic information of wild oil palm from various countries or regions in Africa. Those researchers used various molecular markers in their oil palm genetic evaluations, such as AFLP Kularatne et al., 2001, isozyme Hayati et al., 2004, RFLP Maizura et al., 2006, and SSR markers Bakoume et al., 2007, The reported results of the wild oil palm population evaluation using molecular marker indicated that many loci could be generated using a multi loci AFLP markers and the average number of generated marker could be as many as 47 loci per primer Kularatne et al., 2001. However, AFLP is a dominant marker which is unable to differentiate heterozygous from homozygous individuals -.4 -.3 -.2 -.1 .1 .2 .3 .4 .5 .6 .45 .4 .35 .3 .25 .2 .15 .1 .05 -.05 -.1 -.15 -.2 -.25 -.3 -.35 B01 A127 A125 A140 B57 B0