Artículo
Karyotypes of some species of Cestrum, Sessea, and Vestia (tribe Cestreae, Solanaceae)
Las Peñas, Maria Laura
; Chiarini, Franco Ezequiel
; Bernardello, Gabriel Luis Mario
; Benitez de Rojas, Carmen
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Fecha de publicación:
12/2006
Editorial:
Univ Florence Botany Inst
Revista:
Caryologia
ISSN:
0008-7114
e-ISSN:
2165-5391
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The somatic chromosomes of Cestrum bigibbosum Pittier, C. buxifolium Kunth, Sessea corymbosa Goudot ex Taylor and Phillips and Vestia foetida (Ruiz et Pav.) Hoffmanns, were examined by classical staining. The number 2n = 2x = 16 was found for all species. The total genome length ranged from 57.70 to 92.09 μm and the average chromosome length from 7.21 to 11.51 μm. Karyotypes were notably symmetrical. Haploid karyotype formulae were 8 m pairs (C. bigibbosum, V. foetida) or 7 m + 1 sm pairs (S. corymbiflora, C. buxifolium). Except Sessea corymbiflora in which satellites were not visualized, the remaining species showed one satellited pair. The species can be distinguished by a combination of karyotype formula, karyotype length, and the position of satellites in a particular chromosome pair. Karyotype diversification in tribe Cestreae is suggested to have been accompanied by a tendency towards slight asymmetry and increased genome length.
Palabras clave:
Cestrum
,
Caryotype
,
Sessea
,
Vestia
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Colecciones
Articulos(IMBIV)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Articulos de INST.MULTIDISCIPL.DE BIOLOGIA VEGETAL (P)
Citación
Las Peñas, Maria Laura; Chiarini, Franco Ezequiel; Bernardello, Gabriel Luis Mario; Benitez de Rojas, Carmen; Karyotypes of some species of Cestrum, Sessea, and Vestia (tribe Cestreae, Solanaceae); Univ Florence Botany Inst; Caryologia; 59; 2; 12-2006; 131-137
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