Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markers
Abstract Background Indonesia is the fourth largest global producer of coffee (Coffea spp.). The primary production centre for Coffea arabica in the country is the Gayo Highlands of Aceh. The Gayo Highlands in Aceh serve as a key arabica coffee-producing region, covering over 100,000 hectares across...
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2025-07-01
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| Online Access: | https://doi.org/10.1186/s12870-025-06768-4 |
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| author | Rita Andini Ahmad Zaelani Muhammad Ikhsan Sulaiman Enny Rimita Sembiring Rachman Jaya Meenakshi Gusain Deepak Bhanot Roma Sarnaik Morghade Abdel-Rhman Z. Gaafar Abdul Azis Heru Prono Widayat |
| author_facet | Rita Andini Ahmad Zaelani Muhammad Ikhsan Sulaiman Enny Rimita Sembiring Rachman Jaya Meenakshi Gusain Deepak Bhanot Roma Sarnaik Morghade Abdel-Rhman Z. Gaafar Abdul Azis Heru Prono Widayat |
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| description | Abstract Background Indonesia is the fourth largest global producer of coffee (Coffea spp.). The primary production centre for Coffea arabica in the country is the Gayo Highlands of Aceh. The Gayo Highlands in Aceh serve as a key arabica coffee-producing region, covering over 100,000 hectares across three districts: Aceh Tengah, Bener Meriah, and Gayo Lues, situated at elevations ranging from 900 to 2,000 m above sea level (asl). Despite the economic significance of Gayo Arabica coffee, studies on its genetic diversity remain limited. The objective of this study was to evaluate the morphological characteristics, particularly those associated with yield, and their genetic diversity. Results We measured two types of analyses: a) morphological characteristics (N = 32 characteristics) were analysed from 51 accessions, with the resulting data categorised into qualitative and quantitative traits. The assessment of qualitative traits was conducted through visual observation, while quantitative traits were measured. The mean values of these traits were then subjected to Principal Component Analysis (PCA) in order to ascertain the principal contributing variables. In order to provide a comprehensive evaluation, genetic diversity was analysed using molecular markers in addition to the morphological assessments; b) genomic DNA was extracted from young leaf tissues [N = 52 samples; -1 robusta as outgroup was sampled], and a polymerase chain reaction (PCR) was conducted using eight microsatellite (SSR) markers. Subsequent analyses were then performed on the resulting DNA profiles, utilising clusterisation methodologies. The results indicated significant morphological variation among the accessions, yet comparatively low genetic diversity, as evidenced by a Nei's genetic diversity index of 0.36. Each SSR marker detected 2 to 4 polymorphic bands. Markers Sat227 and Sat240 produced 2 to 3 bands, while M24, Sat32, and A8847 revealed an average of 4.5 bands per marker. Sat207, Sat255, and AY2434 each produced three bands, with Sat255 classified as moderate in polymorphism based on prior literature. This finding suggests that a genetic bottleneck may have occurred in the Gayo Highlands arabica population. Conclusion This work will be of particular relevance to breeding programs and conservation initiatives aimed at ensuring the sustainability of arabica coffee cultivation in Indonesia and other tropical highland regions. We found a relative high morphological diversities in terms of phenotypic trait (N = 32 traits) esp. in these yield related-traits e.g. leaf number per axil, number of leaves per branch, number of cherries per branch, etc.. However, the genetic diversity measured in this study by employing 51 arabica coffee accessions was found to be relatively low, namely 0.34. Furthermore, the use of Principal Component Analysis (PCA) helped to distil complex trait data, with the first principal component (PC1) accounting for 35.6% of the total variation, mainly driven by leaf- and yield-related characteristics. The findings of this study on the present genetic diversity of C. arabica will doubtless underpin future endeavours to enhance the species genetically, to develop future breeding programmes, and to improve the quality of the various varieties. |
| format | Article |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-07-01 |
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| series | BMC Plant Biology |
| spelling | doaj-art-8baff404d4884035bbf87f73b51b8df42025-08-20T03:42:35ZengBMCBMC Plant Biology1471-22292025-07-0125111310.1186/s12870-025-06768-4Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markersRita Andini0Ahmad Zaelani1Muhammad Ikhsan Sulaiman2Enny Rimita Sembiring3Rachman Jaya4Meenakshi Gusain5Deepak Bhanot6Roma Sarnaik Morghade7Abdel-Rhman Z. Gaafar8Abdul Azis9Heru Prono Widayat10Research Center for Applied Botany, Research Organization for Life Sciences and Environment, National Research and Innovation Agency [Badan Riset dan Inovasi Nasional (BRIN)], Kawasan Sains Teknologi (KST) Ir. SoekarnoResearch Center for Genetic Engineering, Research Organization for Life Sciences and Environment, National Research and Innovation Agency [Badan Riset dan Inovasi Nasional (BRIN)], Kawasan Sains Teknologi (KST) Ir. SoekarnoDepartment of Agricultural Product Technology, Universitas Syiah KualaResearch Center for Genetic Engineering, Research Organization for Life Sciences and Environment, National Research and Innovation Agency [Badan Riset dan Inovasi Nasional (BRIN)], Kawasan Sains Teknologi (KST) Ir. SoekarnoStandardization Agency for Agricultural Instruments [Balai Penerapan Standardisasi Instrumen Pertanian (BPSIP)]University Center for Research and Development, Chandigarh UniversityCentre for Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Rajd Technology, Chitkara UniversityAllied Health Sciences, Datta Meghe Institute of Higher Education and ResearchDepartment of Botany and Microbiology, College of Science, King Saud UniversityResearch Center for Food Crops, Research Organization for Agriculture and Food, National Research and Innovation Agency [Badan Riset dan Inovasi Nasional (BRIN)], Kawasan Sains Teknologi (KST) Ir. SoekarnoDepartment of Agricultural Product Technology, Universitas Syiah KualaAbstract Background Indonesia is the fourth largest global producer of coffee (Coffea spp.). The primary production centre for Coffea arabica in the country is the Gayo Highlands of Aceh. The Gayo Highlands in Aceh serve as a key arabica coffee-producing region, covering over 100,000 hectares across three districts: Aceh Tengah, Bener Meriah, and Gayo Lues, situated at elevations ranging from 900 to 2,000 m above sea level (asl). Despite the economic significance of Gayo Arabica coffee, studies on its genetic diversity remain limited. The objective of this study was to evaluate the morphological characteristics, particularly those associated with yield, and their genetic diversity. Results We measured two types of analyses: a) morphological characteristics (N = 32 characteristics) were analysed from 51 accessions, with the resulting data categorised into qualitative and quantitative traits. The assessment of qualitative traits was conducted through visual observation, while quantitative traits were measured. The mean values of these traits were then subjected to Principal Component Analysis (PCA) in order to ascertain the principal contributing variables. In order to provide a comprehensive evaluation, genetic diversity was analysed using molecular markers in addition to the morphological assessments; b) genomic DNA was extracted from young leaf tissues [N = 52 samples; -1 robusta as outgroup was sampled], and a polymerase chain reaction (PCR) was conducted using eight microsatellite (SSR) markers. Subsequent analyses were then performed on the resulting DNA profiles, utilising clusterisation methodologies. The results indicated significant morphological variation among the accessions, yet comparatively low genetic diversity, as evidenced by a Nei's genetic diversity index of 0.36. Each SSR marker detected 2 to 4 polymorphic bands. Markers Sat227 and Sat240 produced 2 to 3 bands, while M24, Sat32, and A8847 revealed an average of 4.5 bands per marker. Sat207, Sat255, and AY2434 each produced three bands, with Sat255 classified as moderate in polymorphism based on prior literature. This finding suggests that a genetic bottleneck may have occurred in the Gayo Highlands arabica population. Conclusion This work will be of particular relevance to breeding programs and conservation initiatives aimed at ensuring the sustainability of arabica coffee cultivation in Indonesia and other tropical highland regions. We found a relative high morphological diversities in terms of phenotypic trait (N = 32 traits) esp. in these yield related-traits e.g. leaf number per axil, number of leaves per branch, number of cherries per branch, etc.. However, the genetic diversity measured in this study by employing 51 arabica coffee accessions was found to be relatively low, namely 0.34. Furthermore, the use of Principal Component Analysis (PCA) helped to distil complex trait data, with the first principal component (PC1) accounting for 35.6% of the total variation, mainly driven by leaf- and yield-related characteristics. The findings of this study on the present genetic diversity of C. arabica will doubtless underpin future endeavours to enhance the species genetically, to develop future breeding programmes, and to improve the quality of the various varieties.https://doi.org/10.1186/s12870-025-06768-4AcehBiodiversityMicrosatellitesPCASSR |
| spellingShingle | Rita Andini Ahmad Zaelani Muhammad Ikhsan Sulaiman Enny Rimita Sembiring Rachman Jaya Meenakshi Gusain Deepak Bhanot Roma Sarnaik Morghade Abdel-Rhman Z. Gaafar Abdul Azis Heru Prono Widayat Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markers BMC Plant Biology Aceh Biodiversity Microsatellites PCA SSR |
| title | Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markers |
| title_full | Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markers |
| title_fullStr | Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markers |
| title_full_unstemmed | Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markers |
| title_short | Genetic diversity of cultivated Gayo Arabica Coffee (Coffea arabica L.) based on morphological and microsatellite markers |
| title_sort | genetic diversity of cultivated gayo arabica coffee coffea arabica l based on morphological and microsatellite markers |
| topic | Aceh Biodiversity Microsatellites PCA SSR |
| url | https://doi.org/10.1186/s12870-025-06768-4 |
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