Abstract
Meiotic behaviour of hybrids between Coffea dewevrei var. ‘excelsa’ and C. eugenioides, and between C. liberica and C. eugenioides, and of open pollinated progeny of these hybrids reveals a close genome relationship in spite of striking morphological differences and distinct geographic separation. In the cross C. dewevrei ‘excelsa’ X C. eugenioides several maternal types occurred, attributed to parthenogenesis. The hybrids are self-sterile and set few seeds on open pollination, again partly involving parthenogenesis, and participation of some unreduced gametes in hybridization.
Subdivision of the section Eucoffea into different subsections (C. dewevrei and C. liberica belonging to subsection Pachycoffea, C. eugenioides to Erythrocoffea) has no cytological basis.
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References
Carvalho, A. & Monaco, L. C., 1967. Genetic relationships of selected Coffea species. Ciênc Cult. 19: 151–165.
Chevalier, A. 1947. L'es caféiers du globe III. Systématique des caféiers et faux caféiers, maladies et insectes nuisibles. Paul Lechevalier, Paris, 356 pp.
Chinnappa, C. C., 1968. Interspecific hybrids of Coffea canephora and C. arabica. Curr. Sci. 37: 676–677.
Chinnappa, C. C., 1970. Interspecific hybrids of Coffea canephora and C. liberica. Genetica 41: 141–146.
Cramer, P. J. S., 1957. A review of literature of coffee research in Indonesia. SIC Editorial, II CA, Turrialba, Costa Rica, 262 pp.
Fernie, L. M., 1966. Impressions of coffee in Ethiopia. Kenya Coff. 31: 115–121.
Haarer, A. E., 1962. Modern coffee production. 2nd Ed. Leonard Hill. London 467 pp.
Krug, C. A. & de, Poerck, R. A., 1968. World coffee survey, FAO, U.N., Rome, 476 pp.
Krug, C. A. & Mendes, A. J. T., 1940. Cytological observations in Coffea. IV. J. Genet. 39: 189–203.
Lebrun, J., 1941. Recherches morphologiques et systématiques sur les caféiers du Congo. Publ. INEAC hors série, 184 pp + 19 pl.
Louarn, J., 1976. Interspecific hybrids between C. canephora Pierre and C. eugenioides S. Moore. Café Cacao Thé 20: 33–52.
Medina, D. M., Conagin, C. H. T. M., & Cruz, N. D. D. A., 1977. Microsporogenesis in diploid species of Coffea L. Caryologia 30: 13–25.
Mendes, C. H. T., 1950. Observações citologicas em C. canephora Pierre ex Froehner. Bragantia 10: 97–104.
Monaco, L. C. & Medina, D. M., 1965. Hibridações entre Coffea arabica e C. kapakata. Analise citológica de um hibrido triplóide. Bragantia 24: 191–201.
Narasimhaswamy, R. L. & Vishweshwara, S., 1961. Report on hybrids between some diploid species of Coffea L. Indian Coff. 25: 104–109.
Narasimhaswamy, R. L. & Vishweshwara, S. 1967. Progress report on hybrids between diploid species of Coffea L. Turrialba 17: 11–17.
Sybenga, J., 1960. Genetics and cytology of coffee. A literature review. Biblfia genetica 19: 217–316.
Sybenga, J., 1961. Non-random distribution of chiasmata in rye, crotalaria and coffee. Chromosoma 11: 441–445.
Thomas, A. S., 1944. The wild coffees of Uganda. Emp. J. exp. Agric. 12: 1–12.
Vishweshwara, S., 1963. A preliminary report on meiotic irregularities in diploids and diploid interspecific hybrids in coffee. Caryologia 16: 535–539.
Wilson, G. B., 1968. The elements of cytogenetics. Reinhold Publ. Lond. 99 pp.
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Reddy, A.G.S.M., Narayan, K.N. Meiosis in hybrids between tree coffees (C. liberica, C. dewevrei) and Nandi coffee (C. eugenioides). Genetica 55, 123–127 (1981). https://doi.org/10.1007/BF00135106
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DOI: https://doi.org/10.1007/BF00135106