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Review on Genetic Diversity Analysis of Ethiopian Coffee Accessions Collected from Limmu Coffee Growing Areas

Received: 20 November 2023    Accepted: 19 December 2023    Published: 11 January 2024
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Abstract

Coffee is the world’s most widely traded tropical agricultural commodity next to oil and is the backbone of the Ethiopian economy. It greatly contributes to the economy of Ethiopia. Limmu is one of the major coffee-producing woredas of Jimma Zone and coffee from this area is well known by the name of ‘Limmu Coffee’ and fetches very high prices on the world market for its peculiar winy flavor. Having known this fact, Jimma Agricultural Research Center collected 220 coffee accessions from this area to improve productivity and quality. Apart from collection, studies on different batches of Limmu coffee collection have also been conducted as information on genetic variability for morphological and organoleptic traits is a prerequisite for further improvement of the yield and quality of coffee. However, the results of the studies have not been summarized in a way to address the readers. Thus, the objective of this review paper is to summarize the findings of different studies conducted on the genetic diversity of Limmu coffee collections. The results of the studies showed that there is sufficient variability among the accessions for quantitative traits and cup quality traits to improve the yield and the quality of Limmu coffee. In conclusion, the observed variability for quantitative and cup quality attributes should be utilized to improve the productivity as well as the quality of coffee through selection and hybridization. However, as most of the diversity studies were conducted using conventional methods, the contemporary diversity analysis method should be employed to supplement the conventional method. Besides, the organoleptic quality analysis should also be supported with biochemical characterization.

Published in Journal of Plant Sciences (Volume 12, Issue 1)
DOI 10.11648/j.jps.20241201.11
Page(s) 1-6
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Coffee, Contemporary Diversity Analysis, Limmu, Organoleptic Traits

References
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[4] Brown, AHD (1988) the genetic diversity of germplasm collections. In: Fraleigh B(ed) Proceedings of a Workshop on the Genetic Evaluation of Plant Genetic Resources, Toronto, Canada (pp 9–11). Research Branch, Agriculture Canada, Toronto.
[5] Hamrick, JL, Godt, MJW & Sherman-Broyles, SL (1992) Factors influencing levels of genetic diversity in woody plant species. New Forests 6: 95–124.
[6] Avise, JC and Hamrick, JL (1997) Conservation Genetics: Case Histories from Nature. Chapman & Hall Cop., New York.
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[8] Andrews, CA (2010) Natural Selection, Genetic Drift, and Gene Flow Do Not Act in Isolation in Natural Populations. Nature Education Knowledge 3(10): 5.
[9] Tadesse Woldemariam Gole and Demel Teketay (2001). The forest coffee ecosystem crisis, problem and opportunities for coffee gene conservation and sustainable utilization. pp 131-142. In: Imperative problems associated with forestry in Ethiopia (ed.BSE), Biological society of Ethiopia, Addis Ababa.
[10] Labouisse, JP. and Kotecha, S (2008) Preserving diversity for speciality coffees. A focus on production systems and genetic resources of arabica coffee in Ethiopia.
[11] Desse Nurre (2008) Mapping quality profile of Ethiopian coffee by origin. Coffee Diversity and Knowledge, Pp 317-327. Proceedings of a National Workshop Four Decades of Coffee Research and Development in Ethiopia. 14-17 August 2007, Addis Ababa, Ethiopia.
[12] Mesfin Ameha and Bayetta Belachew (1987) Genotype-environment interaction and its implication on selection for improved quality in arabica coffee (Coffea arabica L.) ASIC, 17e Colloque, Nairobi, Kenya.
[13] Bayetta Bellachew and Labouisse, JP (2007) Arabica coffee (Coffea arabica L.) local landrace development strategy in its center of origin and diversity. pp. 818-826. Proceedings of the 21st International Conference on Coffee Science (ASIC) Colloquium. 11-15, September 2006, Montpellier, France.
[14] Acquaah, G (2007) Principles of plant genetics and breeding, first Edition, John Wiley & Sons, Ltd.
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[18] Getachew WeldeMichael, Sentayehu Alamerew, Taye Kufa and Tadesse Benti (2013) Genetic diversity analysis of some Ethioian specialty coffee (Coffea arabica L.) germplasm accessions based on morphological traits. Time Journals of Agriculture and Veterinary Sciences, 1(4): 47-54.
[19] Olika Kitila, Sentayehu Alamerew, Taye Kufa and Weyessa Garedew (2011a). Variability of quantitative Traits in Limmu Coffee (Coffea arabica L.) in Ethiopia. International Journal of Agricultural Research, 6: 482-493.
[20] Olika Kitila, Sentayehu Alamerew, Taye Kufa and Weyessa Garedew (2011b) Organoleptic Characterization of Some Limmu Coffee (Coffea arabica L.) Germplasm at Agaro, Southwestern Ethiopia. International Journal of Agricultural Research, 6: 537-549.
[21] Mesfin Kebede and Bayetta Bellachew. 2008. Phenotypic Diversity in the Hararge Coffee (Coffea arabica L) Germplasm for Quantitative Traits. East African Journal of Science, 2(1): 13-18.
[22] Yigzaw Desalegn. 2005. Assessment of genetic diversity of Ethiopian arabica coffee genotypes using morphological, biochemical and molecular markers. A PhD Dissertation, University of the free state, South Africa. p197.
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Cite This Article
  • APA Style

    Weldemichael, G., Beksisa, L. (2024). Review on Genetic Diversity Analysis of Ethiopian Coffee Accessions Collected from Limmu Coffee Growing Areas. Journal of Plant Sciences, 12(1), 1-6. https://doi.org/10.11648/j.jps.20241201.11

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    ACS Style

    Weldemichael, G.; Beksisa, L. Review on Genetic Diversity Analysis of Ethiopian Coffee Accessions Collected from Limmu Coffee Growing Areas. J. Plant Sci. 2024, 12(1), 1-6. doi: 10.11648/j.jps.20241201.11

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    AMA Style

    Weldemichael G, Beksisa L. Review on Genetic Diversity Analysis of Ethiopian Coffee Accessions Collected from Limmu Coffee Growing Areas. J Plant Sci. 2024;12(1):1-6. doi: 10.11648/j.jps.20241201.11

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  • @article{10.11648/j.jps.20241201.11,
      author = {Getachew Weldemichael and Lemi Beksisa},
      title = {Review on Genetic Diversity Analysis of Ethiopian Coffee Accessions Collected from Limmu Coffee Growing Areas},
      journal = {Journal of Plant Sciences},
      volume = {12},
      number = {1},
      pages = {1-6},
      doi = {10.11648/j.jps.20241201.11},
      url = {https://doi.org/10.11648/j.jps.20241201.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jps.20241201.11},
      abstract = {Coffee is the world’s most widely traded tropical agricultural commodity next to oil and is the backbone of the Ethiopian economy. It greatly contributes to the economy of Ethiopia. Limmu is one of the major coffee-producing woredas of Jimma Zone and coffee from this area is well known by the name of ‘Limmu Coffee’ and fetches very high prices on the world market for its peculiar winy flavor. Having known this fact, Jimma Agricultural Research Center collected 220 coffee accessions from this area to improve productivity and quality. Apart from collection, studies on different batches of Limmu coffee collection have also been conducted as information on genetic variability for morphological and organoleptic traits is a prerequisite for further improvement of the yield and quality of coffee. However, the results of the studies have not been summarized in a way to address the readers. Thus, the objective of this review paper is to summarize the findings of different studies conducted on the genetic diversity of Limmu coffee collections. The results of the studies showed that there is sufficient variability among the accessions for quantitative traits and cup quality traits to improve the yield and the quality of Limmu coffee. In conclusion, the observed variability for quantitative and cup quality attributes should be utilized to improve the productivity as well as the quality of coffee through selection and hybridization. However, as most of the diversity studies were conducted using conventional methods, the contemporary diversity analysis method should be employed to supplement the conventional method. Besides, the organoleptic quality analysis should also be supported with biochemical characterization.
    },
     year = {2024}
    }
    

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    AU  - Getachew Weldemichael
    AU  - Lemi Beksisa
    Y1  - 2024/01/11
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    AB  - Coffee is the world’s most widely traded tropical agricultural commodity next to oil and is the backbone of the Ethiopian economy. It greatly contributes to the economy of Ethiopia. Limmu is one of the major coffee-producing woredas of Jimma Zone and coffee from this area is well known by the name of ‘Limmu Coffee’ and fetches very high prices on the world market for its peculiar winy flavor. Having known this fact, Jimma Agricultural Research Center collected 220 coffee accessions from this area to improve productivity and quality. Apart from collection, studies on different batches of Limmu coffee collection have also been conducted as information on genetic variability for morphological and organoleptic traits is a prerequisite for further improvement of the yield and quality of coffee. However, the results of the studies have not been summarized in a way to address the readers. Thus, the objective of this review paper is to summarize the findings of different studies conducted on the genetic diversity of Limmu coffee collections. The results of the studies showed that there is sufficient variability among the accessions for quantitative traits and cup quality traits to improve the yield and the quality of Limmu coffee. In conclusion, the observed variability for quantitative and cup quality attributes should be utilized to improve the productivity as well as the quality of coffee through selection and hybridization. However, as most of the diversity studies were conducted using conventional methods, the contemporary diversity analysis method should be employed to supplement the conventional method. Besides, the organoleptic quality analysis should also be supported with biochemical characterization.
    
    VL  - 12
    IS  - 1
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Author Information
  • National Coffee and Tea Research Program, Ethiopian Institute of Agricultural Research, Jimma Agricultural Research Center, Jimma, Ethiopia

  • National Coffee and Tea Research Program, Ethiopian Institute of Agricultural Research, Jimma Agricultural Research Center, Jimma, Ethiopia

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