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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 791 - 804 (14page)
- DOI
- 10.1007/s11816-021-00721-1
이용수
초록· 키워드
오류제보하기
Ethiopia is the center of origin and diversity for Arabica coffee with high morphological diversity between accessions as compared to commercial cultivars. Coffee germplasm collection and molecular characterization are crucial steps towards its conservation, breeding, and development of superior genotypes for various end uses. Hence, this study was initiated with the objective of studying the genetic diversity of Coffea arabica accessions collected from different regions of Ethiopia, using SSR markers. A total of 20 SSR markers were used to genotype 86 accessions and produced a total of 112 alleles, with an average of 5.6 alleles per locus. All the loci across the entire populations were found to be highly polymorphic with a mean of 0.6 PIC value. Average observed heterozygosity and allelic richness across all populations ranged from 0.22 to 0.27 and 3.52?4.26, with a mean of 2.43 and 3.97, respectively. AMOVA showed high variation within population based on geographical origin. The smaller Fst (0.037) observed indicates the presence of lower population genetic differentiation as a result of higher gene flow (Nm = 2.45) across populations and the lowest mean genetic distance (0.21) observed between populations. The UPGMA, PCoA, and structure analysis poorly grouped the individuals into distinct clusters indicating the presence of population admixture. The observed higher genetic variability in all populations indicates that the country has huge coffee genetic diversity which can be used for future coffee improvement. Our results revealed an unexploited highly diverse genetic resource particularly from Omo, Ilubabor, and Benchi Maji that should be considered in future coffee breed- ing program and germplasm conservation.
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등록된 정보가 없습니다.
참고문헌 (52)
참고문헌 신청
Aerts R / 2013 / Genetic variation and risks of introgression in the wild Coffea arabica gene pool in south-western Ethiopian montane rain forests / Evol Appl 6(2):243~252
Aga E / 2003 / Genetic diversity of forest arabica coffee (Coffea arabica L.) in Ethiopia as revealed by random amplified polymorphic DNA (RAPD) analysis / Hereditas 138:36~46
Al-Abdulkader AM / 2018 / Optimizing coffee cultivation and its impact on economic growth and export earnings of the producing countries: the case of Saudi Arabia / Saudi J Biol Sci 25(4):776~782
Al-Murish TM / 2013 / Genetic diversity of coffee (Coffea arabica L) in Yemen via SRAP, TRAP and SSR markers / J Food Agric Environ 11(2):411~416
Anthony F / 2002 / the origin of cultivated Coffea arabica L. varieties revealed by AFLP and SSR markers / Theor Appl Genet 104:894~900
Aga E / 2003 / Genetic diversity of forest arabica coffee (Coffea arabica L.) in Ethiopia as revealed by random amplified polymorphic DNA (RAPD) analysis / Hereditas 138:36~46
Al-Abdulkader AM / 2018 / Optimizing coffee cultivation and its impact on economic growth and export earnings of the producing countries: the case of Saudi Arabia / Saudi J Biol Sci 25(4):776~782
Al-Murish TM / 2013 / Genetic diversity of coffee (Coffea arabica L) in Yemen via SRAP, TRAP and SSR markers / J Food Agric Environ 11(2):411~416
Anthony F / 2002 / the origin of cultivated Coffea arabica L. varieties revealed by AFLP and SSR markers / Theor Appl Genet 104:894~900
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