@article{fdi:010091572, title = {{G}enetic diversity of ex-situ conserved {A}rabica cofee ({C}offea arabica {L}.) accessions in {E}thiopia as revealed by simple sequence repeats markers}, author = {{B}enti, {T}. and {G}ebre, {E}. and {T}esfaye, {K}. and {B}erecha, {G}. and {L}ashermes, {P}hilippe and {K}yallo, {M}. and {Y}ao, {N}.{K}.}, editor = {}, language = {{ENG}}, abstract = {{S}o far, there has been limited use of molecular markers in arabica coffee breeding program in {E}thiopia. {T}he objectives of this study were to explore the effectiveness of simple sequence repeats markers ({SSR}s) in detecting polymor- phism and to assess the extent of genetic diversity and relationships among ex-situconserved {A}rabica coffee accessions. {S}ixty-two forest coffee accessions planted in the experimental plot of the {E}thiopian coffee breeding program were evaluated using 14 {SSR} markers. {T}hese markers amplified a total of 100 alleles, varying from four to ten alleles per locus, with an average of 7.2 across all loci. {T}he rate of polymorphism ranged from 75 to 100, with a mean value of 96.4 across the accessions. {T}he polymorphic information content ({PIC}) varied from 0.26 to 0.92, with a mean value of 0.70. {T}he genetic similarity coefficient values between 72% possible pair-wise combinations ranged from 0.18 to 0.50, with overall mean value of 0.44.{T}he unweighted pair group method with arithmetic mean ({UPGMA}) dendrogram based on {J}accard's genetic similarity grouped the accessions into five main clusters and two singletons at <0.47 similarity coefficient value. {T}hese results indicate the effectiveness of the {SSR} markers in detecting polymorphism and the presenceĀ of a high level of genetic diversity and distant relatedness among the studied coffee accessions. {T}he observed diversity could be exploited in the future coffee breeding program to develop heterotic hybrid coffee varieties through crossing of divergent parental lines. {T}he highly informative {SSR}s markers can be also used in genetic analysis of {A}rabica coffee germplasm conserved in the field gene bank at {J}imma {A}gricultural {R}esearch {C}enter ({JARC}) to establish core collections for effective conservation, management and utilization purposes.}, keywords = {{ETHIOPIE} ; {OROMIA} {REGION}}, booktitle = {}, journal = {{P}elita {P}erkebunan : a {C}offee and {C}ocoa {R}esearch {J}ournal}, volume = {39}, numero = {2}, pages = {79--94}, ISSN = {0215-0212}, year = {2023}, DOI = {10.22302/iccri.jur.pelitaperkebunan.v39i2.544}, URL = {https://www.documentation.ird.fr/hor/fdi:010091572}, }