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Abstract:

In this work we studied the chromosome number and karyotype formula of seven species of Mimosa L. (Mimosoideae, Leguminosae). The chromosome number 2n = 2x = 26 for M. detinens Benth., M. hexandra M. Micheli, M. ostenii Speg. ex Burkart and M. xanthocentra Mart. var. mansii (Benth.) Barneby are new records, while the chromosome number 2n = 2x = 26 for M. debilis var. debilis, M. urugüensis Hook. and Arn. and M. uliginosa Chodat and Hassl. confi rm previous records. Karyotype formulae revealed the existence of metacentric and submetacentric chromosomes, and the chromosomal asymmetry indexes did not show signifi - cant differences between taxa. The chromosome length of xerophilous and endemic M. detinens and M. ostenii differed from the rest of species, indicating that this parameter could have taxonomic value. In addition, the relationship between total chromosome length and climatic parameters showed that diploid species of marginal areas of distribution have a larger chromosome size, and that this could be related with mechanisms of ecological adaptation.

Registro:

Documento: Artículo
Título:Karyotype studies in Mimosa (Mimosoideae, Leguminosae) from southern South America and ecological and taxonomic relationships
Autor:Matías, M.; Wulff, A.F.; Fortunato, R.H.; Poggio, L.
Filiación:Facultad de Agronomía y Ciencias Agroalimentarias, Universidad de Morón, Cabildo 134, (B1708JPD), Morón, Argentina
Instituto de Recursos Biológicos, CIRN-INTA, Las Cabañas y Los Reseros s/n (1686), Hurlingham, Argentina
Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes y Costanera Norte (CI42EHA), Buenos Aires, Argentina
Palabras clave:Chromosome; Cytogenetics; Karyotype; Leguminosae; Mimosa; Mimosoideae; Fabaceae; Mimosa; Mimosoideae
Año:2011
Volumen:64
Número:2
Página de inicio:201
Página de fin:212
Título revista:Caryologia
Título revista abreviado:Caryologia
ISSN:00087114
CODEN:CARYA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00087114_v64_n2_p201_Matias

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Citas:

---------- APA ----------
Matías, M., Wulff, A.F., Fortunato, R.H. & Poggio, L. (2011) . Karyotype studies in Mimosa (Mimosoideae, Leguminosae) from southern South America and ecological and taxonomic relationships. Caryologia, 64(2), 201-212.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00087114_v64_n2_p201_Matias [ ]
---------- CHICAGO ----------
Matías, M., Wulff, A.F., Fortunato, R.H., Poggio, L. "Karyotype studies in Mimosa (Mimosoideae, Leguminosae) from southern South America and ecological and taxonomic relationships" . Caryologia 64, no. 2 (2011) : 201-212.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00087114_v64_n2_p201_Matias [ ]
---------- MLA ----------
Matías, M., Wulff, A.F., Fortunato, R.H., Poggio, L. "Karyotype studies in Mimosa (Mimosoideae, Leguminosae) from southern South America and ecological and taxonomic relationships" . Caryologia, vol. 64, no. 2, 2011, pp. 201-212.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00087114_v64_n2_p201_Matias [ ]
---------- VANCOUVER ----------
Matías, M., Wulff, A.F., Fortunato, R.H., Poggio, L. Karyotype studies in Mimosa (Mimosoideae, Leguminosae) from southern South America and ecological and taxonomic relationships. Caryologia. 2011;64(2):201-212.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00087114_v64_n2_p201_Matias [ ]