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Citogenetica de angiospermas coletadas em Pernambuco. I (Cytogenetics of angiosperms collected in Pernambuco. I )

Marcelo dos Santos Guerra

Departamento de Biologia Geral, Centro de Ciências Biológicas, Universidade Federal de Pernambuco, 50000 Recife, PE, Brasil

ABSTRACT

We present here the chromosome numbers of 41 angiosperm species belonging to 35 genera collected in the State of Pernambuco. A table with the herbarium voucher, diploid number, possible ploidy level, collecting sites and previous reports for all the species is presented, as well as photographs of chromosomes belonging to 30 of these species. Nineteen species have not been previously reported. Amongst the other 22 species, only one, Eulophidium maculatum, has an unexpected chromosome number. As a rule, we have- analyzed ten or more germinated seeds for each plant in different populations. No intraspecific variation in chromosome number or morphology was observed. Most of the species showed small metacentric to submetacentric chromosomes and just one pair with a secondary constriction. The ploidy level was defined using the basic genus number. In three genera (Genipa, Momnieria and Basiloxylon), for which no counts had been made previously, the ploidy level was estimated from one of the basic numbers of the family.

Keywords: cytogenetics; angiosperms; Pernambuco.

REFERENCES

Bandel, G. (1974). Chromosome numbers and evolution in the Leguminosae. Caryologia 27: 17-32.

Böcher, T.W. (1961). The development of cytotaxonomy since Darwin's time. In: A Darwin Centenary (Wanstall, P.J., ed.). B.S.B.I. Conference Reports VI, London, pp. 26-43.

Briggs, B. y Walters, S.M. (1969). Evolución y Variación Vegetal Guadarrama, Madrid.

Coleman, J.R. (1968). Chromosome numbers in some Brazilian Compositae. Rhodora 70: 228-240.

Coleman, J.R. (1982). Chromosome numbers of angiosperms collected in the State of São Paulo. Rev. Brasil. Genet. 5: 533-549.

Coleman, J.R. and Campello, M.L. (1984). Cytogenetics of a mixed Brazilian population of Emilia sonchifolia (L.) DC. and E. coccinea (Sims) G. Don (Compositae). Rev. Brasil. Genet. 7: 8394.

Cronquist, A. (1968). The Evolution and Classification of Flowering Plants. Houghton Mifflin Co., Boston.

Delay, C. (1947). Recherches sur la structure des noyaux quiescents chez les phanérogames. Rev. CytoL CytophysioL Veg. 10: 103-228.

Diers, L. (1961). Der Anteil an Polyploiden in den Vegetationsgiirteln der Westkordillere Perus. Zeitschr. f Botan. 49: 437-488.

Ehrendorfer, F. (1964). Cytologie, Taxonomie und Evolution bei Samenpflanzen. Vistas in Botany 4: 99-186.

Ehrendorfer, F. (1970). Chromosomen, Verwansdschaft und Evolution tropischer Holzpflanzen. I. Allgemeine Hinweise. Österr. Bot. Z. 118: 30-37.

Ehrendorfer, F. (1980a). Polyploidy and distribution. In:Polyploidy -Biological Relevance (Lewis, W.H., ed.). Plenum Press, New York, pp. 45-60.

Ehrendorfer, F. (1980b). Hybridisierung, Polyploidie und Evolution bei europaisch-mediterranen Orchideen. Jahresber. Naturwiss. Ver. Wuppertal, Sonderheft Orchidee: 15-34.

Ehrendorfer, F. (1982). Speciation patterns in woody angiosperms of tropical origin. In: Mechanisms of Speciation (Barigozzi, C., ed.). Alan R. Liss. Inc., New York, pp. 479-509.

Fedorov, Am. A. (Ed.) (1969). Chromosome Number of Flowering Plants. Komarov Botanical Institute, Leningrad.

Gill, B.S., Bir, S.S., Sidhu, M.S., and Singhal, V.K. (1984). In: IOPB Chromosome number reports LXXXIV. Taxon 33:536-539.

Goldblatt, P. (Ed.) (1981). Index to Plant Chromosome Numbers 1975-1978. Missouri Botanical Garden, St. Louis.

Goldblatt, P. (Ed.) (1984). Index to Plant Chromosome Numbers 1979-1981. Missouri Botanical Garden, St. Louis.

Grant, V. (1971). Plant Speciation. Columbia University Press, New York.

Guerra, M. dos S. (1983). 0 use do corante Giemsa na citogenética vegetal - comparação entre a coloração simples e o bandeamento. Ciênc. Cult. 35: 190-193.

Guerra, M. dos S. (1984). New chromosome numbers in Rutaceae.Pl. Syst. Evol. 146: 13-30. Guerra, M. dos S. Cytogenetics of Rutaceae III. Heterochromatin patterns. Caryologia (in press).

Heywood, V.H. (1967). Plant Taxonomy. Edward Arnold, London.

Krishnappa, D.G. and Munirajappa, (1982). In: IOPB chromosome number reports LXXVI. Taxon 31: 574-598.

Mangenot, S. et Mangenot, G. (1962). Enquête sur les nombres chromosomiques dans une collection d'espèces tropicales. Rev. Cytol. BioL Veg. 25: 411-447.

Merxmüller, H. (1970). Provocation of biosystematics. Taxon 19: 140-145.

Moore, R.J. (Ed.) (1973). Index to Plant Chromosome Numbers 1967-1971. Regnum Vegetabile 90: 1-539.

Moore, R.J. (Ed.) (1974). Index to Plant Chromosome Number for 1972. Regnum Vegetabile 91: 1-108.

Moore, R.J. (Ed.) (1977). Index to Plant Chromosome Number for 1973-1974. Regnum Vegetabile 96: 1-257.

Morawetz, W. (1984). How stable are genomes of tropical woody plants? Heterozygosity in C-banded karyotypes of Po.rcelia as compared with Annona (Annoneceae) and Drimys (Winteraceae). PL Syst. EvoL 145: 29-39.

Naranjo, C. y Andrada, A.B. (1975). El cariotipo fundamental en el género Hippeastrum Herb. ('Amaryllidaceae'). Darwiniana 19:566-582.

Raven, P.H. (1975). The bases of angiosperm phylogeny - Cytology. Ann. MissouriBot. Gard. 62: 724-764.

Sarkar, A.K., Datta, N., Chatterjee, M., and Hazra, D. (1982). In: IOPB Chromosome number reports LXXVI. Taxon 31: 574-598.

Schwarzacher, T. and Schweizer, D. (1982). Karyotype analysis and heterochromatin differentiation with Giemsa C-banding and fluorescent counterstaining in Cephalanthera (Orchidaceae). Pl. Syst. EvoL 141: 91-113.

Simmonds, N.W. (1954). Chromosome behaviour in some tropical plants. Heredity 8: 139-145.

Smith-White, S. (1959). Cytological evolution in the Australian flora. Cold Spring Harbor Symp. Quant. BioL 24: 273-289.

Stebbins, G.L. (1971). Chromosomal Variation in Higher Plants. Edward Arnold, London.

Stuessy, T.F. (1977). Heliantheae - Systematic review. In: Biology and Chemistry of the Compositae (Heywood, V., Harborne, J. and Turner, B.L., eds.). Academic Press, New York, pp. 622-671.

Turner, B.L., Bacon, J., Urbatsch, L. and Simpson, B. (1979). Chromosome numbers in South American Compositae. Amer. J. Bot. 66: 173-178.