Abstract
Vernonia is the largest genus of the tribe Vernonieae (Asteraceae) and comprises more than 1,000 species. In the present study we explore chromosome number and karyotype variation of eight species treated within different subsections of the section Vernonia sect. Lepidaploa. We aimed to explore if these data support the recognition of a single large genus (sensu Baker) or favor its splitting into 22 small genera (sensu Robinson). The species were collected in “cerrado”, rupicolous and disturbed areas in the states of São Paulo and Minas Gerais, Brazil. Chromosome numbers varied from 2n = 32 to 60. Most chromosomes were small, and the karyotype analysis revealed a predominance of metacentric and some submetacentric chromosomes. The karyotype symmetry in Vernonia was moderate (TF% 32.2 to 45.9), with the most symmetrical karyotype observed in V. rubriramea. The results obtained here did not conclusively support any of the taxonomic proposals for Vernonia due to the absence of distinctive or characteristic karyotype patterns for any of the taxonomic groupings, i.e., sections and subsections (sensu Baker) or new genera (sensu Robinson). Nevertheless, a tenuous relationship was observed between the chromosome numbers reported in the literature, those recorded here, and the taxonomic alterations suggested by Robinson for the genera Lessingianthus, Chrysolaena, and Vernonanthura that were originally part of Vernonia sensu Baker.
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References
Baker JG (1873) Compositae I. Vernonieae. In Martius CF, Eichler AG (eds) Flora brasiliensis 6(2). R. Oldenbourg, Lipsiae, Monachii, pp 1–180
Bentham G (1873a) Compositae. In Bentham G, Hooker JD (eds) Genera Plantarum 2. Lovell Reeve, London, pp 163–533
Bentham G (1873b) Notes of the classification history, and geographical distribution of the Compositae. Bot J Linn Soc 13:355–577
Bernardello LM (1986) Números cromosómicos en Asteraceae de Córdoba. Darwiniana 27:169–178
Bolkhovsvikh Z, Grif V, Matvejeva T, Zararyeva O (1969) Chromosome numbers in flowering plants. Academy of Sciences of the USSR, Leningrad
Bremer K (1994) Asteraceae: cladistics and classification. Timber Press, Portland
Cabrera AL (1944) Vernonieae argentinas (Compositae). Darwiniana 6:265–379
Cassini AHG (1817) Aperçu des genres nouveaux formés par M. Henri Cassini dans la famille des Synanthérées. Bull Soc Philom Paris 4:66–68
De Candolle AP (1836) Compositae. Prodr (DC) 5:4–706
Dematteis M (1996) Estudios cromosómicos en especies argentinas de Vernonia (Asteraceae). Bonplantia 9:103–110
Dematteis M (1997) Números cromosómicos y cariotipos de algunas especies de Vernonia (Asteraceae). Bol Soc Argent Bot 33:85–90
Dematteis M (1998) Chromosome studies of some Vernonia species. (Asteraceae). Genet Molec Biol 21:381–385
Dematteis M (2002) Cytotaxonomic analysis of South American species of Vernonia (Vernonieae: Asteraceae). Bot J Linn Soc 139:401–108
Dematteis M, Fernández A (1998) Karyotypes of seven South American species of Vernonia (Asteraceae). Cytologia 63:323–328
Dematteis M, Fernández A (2000) Chromosomes studies on nine South American species of Vernonia (Vernonieae, Asteraceae). Caryologia 53:55–61
Galiano NG, Hunziker JH (1987) Estudios cariologicos en Compositae. IV. Vernonieae Y Eupatorieae. Darwianiana 28:1–8
Goldblatt P (1981–1988) Index to plant chromosome numbers 1975–1978, 1979–1981, 1982–1983, 1984–1985. Monogr Syst Bot Missouri Bot Gard 5:1–259, 8:1–194, 13:1–224, 23:1–122
Goldblat P, Johnson DE (1990–1998) Index to plant chromosome numbers 1986–1987, 1988–1989, 1992–1993, 1994–1995. Monogr Syst Bot Missouri Bot Gard 30:1–243, 40:1–238, 58:1–276, 69:1–208
Guerra M (1986) Reviewing the chromosome nomenclature of Levan et al. Rev Bras Genet 4:741–743
Guerra M (1988) Introdução à citogenética Geral (A general introduction to cytogenetics). Editora Guanabara, Rio de Janeiro
Huziwara Y (1962) Karyotype analysis in some genera of Compositae. VIII. Further studies on the chromosomes of Aster. Amer J Bot 49:116–119
Huynh KL (1965) Contribution à l'étude caryologique y embryologique des phanérogames du Pérou. Denkschr Schweiz Naturf Ges 85:1–178
Jones SB (1970) Chromosome numbers in Compositae. Bull Torrey Bot Club 97:168–174
Jones SB (1974) Vernonieae (Compositae) chromosome numbers. Bull Torrey Bot Club 101:31–34
Jones SB (1979a) Synopsis and pollen morphology of Vernonia (Compositae: Vernonieae) in the New World. Rhodora 81:425–447
Jones SB (1979b) Chromosome numbers of Vernonieae (Compositae). Bull Torrey Bot Club 106:79–86
Jones SB (1981) Synoptic classification and pollen morphology of Vernonia (Compositae: Vernonieae) in the Old World. Rhodora 83:59–75
Jones SB (1982) [Reports] In Löve Á (ed) IOPB chromosome number report LXXIV. Taxon 31:126–127
Keeley SC, Jansen RK (1994) Chloroplast DNA restriction site variation in the Vernoniaeae (Asteraceae), an initial appraisal of the relationships of New and Old World taxa and the morphology of Vernonia. Pl Syst Evol 193:249–265
Lessing CF (1829) De synanthereis herbarii regii berolinensis dissertationes. I – Vernonieae. Linnaea 4:240–356
Lessing CF (1831a) De synanthereis dissertatio Quarta. Linnaea 6:240–288, 295–399
Lessing CF (1831b) De synanthereis herbarii regii berolinensis dissertationes. I – Vernonieae. IV. Vernoniearum mantissa. Linnaea 6:624–721
Lombello RA, Forni-Martins ER (1998) Chromosomal studies and evolution in Sapindaceae. Caryologia 51:81–93
Malallah GA, Attia TA, Masood M (2001) Aneuploidy in wild Picris babylonica (Asteraceae) in Kuwait. Cytologia 66:241–246
Moore RJ (ed) (1973–1977) Index to plant chromosome numbers 1967–1971, 1972, 1973–1974. Regnum Veg 90:1–539, 91:1–108, 96:1–257
Oliveira VM, Forni-Martins ER, Semir J (2007a) Cytotaxonomy of species of Vernonia, section Lepidaploa, group Axilliflorae (Asteraceae, Vernonieae). Bot J Linn Soc 154:99–108
Oliveira VM, Forni-Martins ER, Semir J (2007b) Cytotaxonomic studies in six species of Vernonia (Asteraceae: Vernonieae). Caryologia 60:37–47
Reeves A, Tear J (2000) MicroMeasure for Windows, version 3.3. Available at: http://www.colostate.edu/Depts/Biology/MicroMeasure
Robinson H (1999) Generic and subtribal classification of American Vernonieae. Smithsonian Contr Bot 9:1–116
Ruas PM, Ruas CF, Vieira OS, Matzenbacher NI, Martins NS (1991) Cytogenetics of genus Vernonia Schreber (Compositae). Cytologia 56:239–247
Stace CA (1989) Plant taxonomy and biosystematics. Cambridge University Press, New York
Stebbins GL (1977) Flowering plants. Cambridge University Press, Cambridge
Stutts JG (1988) Taxonomic revision of Vernonia subsect. Chamaedrys (Compositae: Vernonieae). Rhodora 90:37–99
Acknowledgements
V.M.O. was supported by a scholarship from Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) and E.R.F.M. by a research fellowship from Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq). This work was funded by FAPESP (grant no. 04/13165-9).
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de Oliveira, V.M., Semir, J. & Forni-Martins, E.R. Chromosome Numbers and Karyotypes of Species of Vernonia sect. Lepidaploa (Asteraceae: Vernonieae). Folia Geobot 47, 93–103 (2012). https://doi.org/10.1007/s12224-011-9103-z
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DOI: https://doi.org/10.1007/s12224-011-9103-z