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Phylogenetic studies of some species of the genus Coffea - I - numerical analysis of flavonoid compounds

Catalina Romero Lopes^I; G.P. Shepherd^II

^IDepartamento de Genética, Instituto de Biociências, Universidade Estadual Paulista, Caixa Postal 502, 18610 Botucatu, SP, Brasil. Send correspondence to C.R.L.
^IIDepartamento de Botânica, Instituto de Biologia, Universidade de Campinas, 13100 Campinas, SP, Brasil

ABSTRACT

Flavonoid compounds were analyzed in ripe fruit pulp of ten species of Coffea, including two cultivars of C. arabica and two of C. canephora. Three coefficients of similarity: Simple-Matching, Jaccard and Ochiai and three different clustering methods, Single Linkage, Complete Linkage and Unweighted Pair Group, Using Arithmetic Averages (UPGMA), were used to analyze the data.
Jaccard and Ochiai's coefficients of association showed a more coherent result, when compared with taxonomic and hybridization studies. Inclusion of Psilanthopsis kapakata in the genus Coffea, as C. kapakata, is justified by the similarity of this species with other studied species, and clusters clearly approximate the species C. arabica and C. eugenioides. The latter is one of the possible parents of the allotetraploid species C. arabica, C. congensis is the only species whose position remains ambiguous, probably due to the fact that the plants of this species that were introduced into the Campinas collections, were hybrids and not typical of C. congensis.

Keywords: Phylogenetic studies; Coffea; Flavonoid compounds.

REFERENCES

Carvalho, A. and Monaco, L.C. (1967). Genetic relationship of selected Coffea species. Ciênc. Cult. 19 151-165.

Carvalho, A., Medina Filho, H.P. and Fazuoli, L.C. (1985). Evolução e melhoramento do cafeeiro. Colóquio Internacional de Citogenética de Plantas, 1, Piracicaba.

Charrier, A. (1975). Contribution a l'etude génétique des Mascarocoffea. 7^º Coloque Scientifique International sur le cafe. Hambourg (9/14) juin 1975). ASI, 483-495.

Chevalier, A. (1942). Les caféiers du globe. II. Iconographie des caféiers sauvages et cultivés et des Rubiacées prises pour des caféiers. In: Encycl. Biol. (Lechevalier, P., ed.), Paris, 36p. 158 pl.

Chevalier, A. (1947). Les caféiers du globe. III. Systematique des caféiers et faux-caféiers, Maladies et insects nuisibles. In: Encycl. Biol. XXVIII, Fas. III (Lechevalier, P., ed.), Paris, 356p.

Leroy, J.F. (1980). Evolution et taxogenese chez les Caféiers (Coffea L.,Psilanthus Hook f. et Nostolachma Durand). Hypothése sur leur origine. C.R Acad. Sci. Paris 291: 593-596.

Lopes, C.R. and Monaco, L.c.(1977), Estudos de quimiotaxonomia em cultivares de Coffea arabicaL.Turrialba 27: 55-61.

Lopes, C.R. and Monaco, L.C. (1979). Chemotaxonomic studies of some species of the genus Coffea. J. Plantat. Crops 7: 6-14.

Lopes, C.R., Cunha, R.A. and Blotta, L.F. (1984). Estudo taxonômico do gênero Coffea com emprego de métodos numéricos. Turrialba 34: 421-430.

Sneath, P.H.A. and Sokal, R.R. (1973). Numerical taxonomy. The principles and practice of numerical classification. San Francisco, W.H. Freenam, 573p.