Abstract
Avocado (Persea americana Mill.) is a nutritious and economic tree crop with cultivations scattered all over Ghana. Although, there have been some genetic diversity research on this crop in some parts of the world, rather limited research has been done on avocado in Ghana. A study was therefore conducted to assess its genetic diversity in the Ashanti and Central Regions of Ghana. Microsatellites analyses revealed 115 different amplification fragments ranging from 5 to 22 alleles per locus, with an average of 11.5 alleles per locus. All the microsatellites were highly informative with both genetic diversity and polymorphic informative content (PIC) higher than 0.5. Using the unweighted pair group method with arithmetic averages (UPGMA), the genotypes were clustered into groups. The wide genetic diversity among the accessions indicates that there is a wide genetic base for improvement of the crop through breeding and selection in Ghana. Key words: Amplification fragments, polymorphic information content, accessions microsatellites, alleles.  
Highlights
S and En nvironment Ed ducation, Univ versity of Educcation, Winne eba ‐ Mampong Campus, P
The e conservatio on of crops in the world crrucially depen nds on the knowled dge of their genetic diversity
We found that 70% of the accessions had phic informattive content (PIC) values of 0.6 and beyond
Summary
S and En nvironment Ed ducation, Univ versity of Educcation, Winne eba ‐ Mampong Campus, P. There have been some genetic dive ersity researc ch on this c crop in some e parts of the world, rather limitted research h has been done on a avocado in Ghana. A s study was conducted to assess its genetic div versity in the Ashanti an nd Central R. The wide genetic diversity am mong the acc cessions ind dicates that there t is a wiide genetic b base for improvement off the crop through bre eeding and selection s in Ghana. The e conservatio on of crops in the world crrucially depen nds on the knowled dge of their genetic diversity. Molecu ular markers, such as simple sequence re epeats
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