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Abstract:

Chromosome numbers and meiotic behaviour of 10 native species of Hybanthus in South America were analyzed. 3 different chromosome numbers were found: 2n=16 for Hybanthus atropurpureus (A. St.-Hil.) Taub., H. bigibbosus (A. St.-Hil.) Hassl. and H. paraguariensis (Chodat) Schulze-Menz, 2n=32 for H. bicolor (A. St.-Hil.) Baill., H. calceolaria (L.) Oken, H. communis (A. St.-Hil.) Taub., H. hasslerianus (Chodat) Hassl., H. leucopogon Sparre and H. nanus (A. St.-Hil.) Paula-Souza, and 2n=48 for H. longistylus Schulze-Menz. This is one of the first reports for 8 analyzed species. Nowadays, the basic chromosome numbers in the South American Hybanthus species are under discussion. The presence of 1 tetravalent in H. atropurpureus, H. bigibbosus and H. paraguariensis (2n=16) would suggest the duplication of chromosome sets, and therefore would indicate that the basic chromosome number is x=4, at least, for this group of South American Hybanthus species. The studied species would be tetraploids (2n=4x=16), octoploids (2n=8x=32) and dodecaploids in H. longistylus (2n=12r=48). In light of these findings, such polyploidy would likely have played an important role during the speciation of this heterogenerous generic assembly. © 2009 The Japan Mendel Society.

Registro:

Documento: Artículo
Título:Meiotic studies in ten species of Hybanthus Jacq. (Violaceae) from South America
Autor:Seo, M.N.
Filiación:Lab. de Citogenetica y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Int. Guiraldes, Pab. II, Ciudad Universitaria, Cdad. de Buenos Aires, Argentina
Palabras clave:Argentina; Basic chromosome number; Hybanthus subgenus ionidium; Meiotic behaviour; Polyploidy; South America; Hybanthus; Hybanthus atropurpureus; Ionidium; Leucopogon; Violaceae
Año:2009
Volumen:74
Número:2
Página de inicio:141
Página de fin:146
DOI: http://dx.doi.org/10.1508/cytologia.74.141
Título revista:Cytologia
Título revista abreviado:Cytologia
ISSN:00114545
CODEN:CYTOA
PDF:https://bibliotecadigital.exactas.uba.ar/download/paper/paper_00114545_v74_n2_p141_Seo.pdf
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00114545_v74_n2_p141_Seo

Referencias:

  • Ballard, H.E., Souza, J.P., Feng, M., Dismantling the polyphyletic genus Hybanthus Jacq. (Violaceae) (2005) XVII International Botanical Congress, 169. , Vienna, Austria Abstracts
  • Bennett, E.M., A revision of the Australian species of Hybanthus Jacquin (Violaceae) (1972) Nuytsia, 1, pp. 218-241
  • Davidse, G., Chromosome number reports 32 (1971) Taxon, 20, p. 351
  • Di Fulvio, T.E., Recuentos cromosómicos en Angiospermas Argentinas III (1977) Kurtziana, 10, pp. 69-72
  • Gadella, T.W.J., Kliphuis, E., Lindeman, J.C., Mennega, G.A., Chromosome numbers and seedling morphology of some angiospermae collected in Brazil (1969) Acta Bot. Neerl., 18, pp. 74-83
  • Heilbom, O., Bidrag till violaceernas cytologi (1926) Svensk Bot. Tidskr., 20, pp. 414-419
  • Hekking, W.H.A., Violaceae (1988) Fl. Neotrop. Monogr, 46, p. 207. , The New York Botanical Garden
  • Koshy, J.K., Mathew, P.M., Cytology of members of Violaceae from south India (1990) J. Cytol. Genet., 25, pp. 159-162
  • Kovanda, M., Chromosome numbers of miscellaneous United States dicotyledons (1978) Rhodora, 80, pp. 431-440
  • Peng, C.I., Chen, Y.F., Hybanthus Jacq. (Violaceae), a new generic record for the flora of Taiwan (1985) Bot. Bull. Acad. Sin., 26, pp. 213-220
  • Pinto-Maglio, C.A.F., Pierozzi, N.L., Castro, S.C.P., Soares-Scott, M.D., IOPB chromosome data 11 (1997) Newslett. Int. Organ. PI. Biosyst., 26-27, pp. 23-24
  • Sanso, A.M., Seo, M.N., Violaceae, C.X.C., Catálogo de las Plantas Vascu-lares del Cono sur Monogr. Syst. Bot. Missouri Bot. Gard., , In: Zuloaga F. and O. Morrone (ed.)(in press)
  • Sarkar, A.K., Chakraverty, M., Das, S.K., Pal, C.R., Hazara, D., Chromosome number reports 67 (1980) Taxon, 29, pp. 358-360
  • Schulze-Menz, G.K., Morphologisch-systematische Studien über die Gattung Hybanthus (1936) Bot. Jahrb. Syst., 67, pp. 437-492
  • Seo, M.N., (2008) Estudios Sistemáticos y Evolutivos en Especies Argentinas Del Genero Hybanthus. (Violaceae), p. 174. , Unpublished PhD. Thesis, Universidad de Buenos Aires, Argentina
  • Sundberg, S., Dillon, M., Chromosome number reports 91 (1986) Taxon, 35, pp. 409-410
  • Tokuoka, T., Molecular phylogenetic analysis of Violaceae (Malpighiales) based on plastid and nuclear DNA sequences (2008) J. Plant. Res., 121, pp. 253-260
  • Turner, B.L., Escobar, L.K., Documented chromosome number 1991: 1. Chromosome numbers in Hybanthus (Violaceae) (1991) Sida, 14, pp. 501-503

Citas:

---------- APA ----------
(2009) . Meiotic studies in ten species of Hybanthus Jacq. (Violaceae) from South America. Cytologia, 74(2), 141-146.
http://dx.doi.org/10.1508/cytologia.74.141
---------- CHICAGO ----------
Seo, M.N. "Meiotic studies in ten species of Hybanthus Jacq. (Violaceae) from South America" . Cytologia 74, no. 2 (2009) : 141-146.
http://dx.doi.org/10.1508/cytologia.74.141
---------- MLA ----------
Seo, M.N. "Meiotic studies in ten species of Hybanthus Jacq. (Violaceae) from South America" . Cytologia, vol. 74, no. 2, 2009, pp. 141-146.
http://dx.doi.org/10.1508/cytologia.74.141
---------- VANCOUVER ----------
Seo, M.N. Meiotic studies in ten species of Hybanthus Jacq. (Violaceae) from South America. Cytologia. 2009;74(2):141-146.
http://dx.doi.org/10.1508/cytologia.74.141