Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina

A cytological analysis of eight Argentinean species of Eryngium L. (Saniculoideae, Apiaceae) is carried out. Karyotypes of eight species and original chromosome counts for three of them (indicated with an asterisk) are notified: E. coronatum*Hook. et Arn. (2n=2x-16; 14m + 2sm), E. echinatum Urb. (2n...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Calviño, C.I., O'Leary, N., Greizerstein, E., Martínez, S., Poggio, L.
Formato:	JOUR
Materias:	Aneuploidy Chromosome number Eryngium Karyotype Polyploidy Taxonomy
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00087114_v55_n4_p315_Calvino
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00087114_v55_n4_p315_Calvino
record_format	dspace
spelling	todo:paper_00087114_v55_n4_p315_Calvino2023-10-03T14:07:49Z Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina Calviño, C.I. O'Leary, N. Greizerstein, E. Martínez, S. Poggio, L. Aneuploidy Chromosome number Eryngium Karyotype Polyploidy Taxonomy A cytological analysis of eight Argentinean species of Eryngium L. (Saniculoideae, Apiaceae) is carried out. Karyotypes of eight species and original chromosome counts for three of them (indicated with an asterisk) are notified: E. coronatumHook. et Arn. (2n=2x-16; 14m + 2sm), E. echinatum Urb. (2n=2x=16; 12m + 2m-sm + 2sm), E. nudicaule Lam. (2n=2x=14; 8m + 2m-sm + 4sm), E. eburneum Decne. (2n=2x=16; 8m + 2m-sm + 6sm), E. horridum Malme (2n=2x=16; 12m + 4sm), E. megapotamicumMalme (2n=4x=32; 4m + 6m-sm + 22sm), E. mesopotamicum* Pedersen (2n=6x=48; 30m + 16sm +2st), and E. pandanifolium Cham. et Schlechtd. (2n=6x=48; 26m + 4m-sm + 14sm + 4st). The first three species belong to the Section Foetida, while the remaining five, belong to Panniculata. Both Sections are easily differentiated by morphology; our chromosomal study shows that these sections can also be recognized karyologically. All the species, except E. nudicaule (x=7), present x=8 which is the most common basic chromosome number in the genus and in the subfamily Saniculoideae. The karyotype analysis made on the eight species mainly shows metacentric and submetacentric chromosomes differing in proportion between species; only E. pandanifolium and E. mesopotamicum show subtelocentric pairs. These two species only differ in the color of their inflorescences; besides, differences in their karyotypes were negligible. These facts agree with the suggestion that they would be varieties of the same species. Two different phenomena seem to have occurred during karyotype evolution in the genus Eryngium: aneuploidy within Section Foetida, and polyploidy within Section Panniculata. © 2002 Taylor and Francis Group, LLC. Fil:Calviño, C.I. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:O'Leary, N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Greizerstein, E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Poggio, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00087114_v55_n4_p315_Calvino
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Aneuploidy Chromosome number Eryngium Karyotype Polyploidy Taxonomy
spellingShingle	Aneuploidy Chromosome number Eryngium Karyotype Polyploidy Taxonomy Calviño, C.I. O'Leary, N. Greizerstein, E. Martínez, S. Poggio, L. Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina
topic_facet	Aneuploidy Chromosome number Eryngium Karyotype Polyploidy Taxonomy
description	A cytological analysis of eight Argentinean species of Eryngium L. (Saniculoideae, Apiaceae) is carried out. Karyotypes of eight species and original chromosome counts for three of them (indicated with an asterisk) are notified: E. coronatumHook. et Arn. (2n=2x-16; 14m + 2sm), E. echinatum Urb. (2n=2x=16; 12m + 2m-sm + 2sm), E. nudicaule Lam. (2n=2x=14; 8m + 2m-sm + 4sm), E. eburneum Decne. (2n=2x=16; 8m + 2m-sm + 6sm), E. horridum Malme (2n=2x=16; 12m + 4sm), E. megapotamicumMalme (2n=4x=32; 4m + 6m-sm + 22sm), E. mesopotamicum* Pedersen (2n=6x=48; 30m + 16sm +2st), and E. pandanifolium Cham. et Schlechtd. (2n=6x=48; 26m + 4m-sm + 14sm + 4st). The first three species belong to the Section Foetida, while the remaining five, belong to Panniculata. Both Sections are easily differentiated by morphology; our chromosomal study shows that these sections can also be recognized karyologically. All the species, except E. nudicaule (x=7), present x=8 which is the most common basic chromosome number in the genus and in the subfamily Saniculoideae. The karyotype analysis made on the eight species mainly shows metacentric and submetacentric chromosomes differing in proportion between species; only E. pandanifolium and E. mesopotamicum show subtelocentric pairs. These two species only differ in the color of their inflorescences; besides, differences in their karyotypes were negligible. These facts agree with the suggestion that they would be varieties of the same species. Two different phenomena seem to have occurred during karyotype evolution in the genus Eryngium: aneuploidy within Section Foetida, and polyploidy within Section Panniculata. © 2002 Taylor and Francis Group, LLC.
format	JOUR
author	Calviño, C.I. O'Leary, N. Greizerstein, E. Martínez, S. Poggio, L.
author_facet	Calviño, C.I. O'Leary, N. Greizerstein, E. Martínez, S. Poggio, L.
author_sort	Calviño, C.I.
title	Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina
title_short	Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina
title_full	Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina
title_fullStr	Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina
title_full_unstemmed	Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina
title_sort	chromosome studies on eight species of eryngium l. (saniculoideae, apiaceae) from argentina
url	http://hdl.handle.net/20.500.12110/paper_00087114_v55_n4_p315_Calvino
work_keys_str_mv	AT calvinoci chromosomestudiesoneightspeciesoferyngiumlsaniculoideaeapiaceaefromargentina AT olearyn chromosomestudiesoneightspeciesoferyngiumlsaniculoideaeapiaceaefromargentina AT greizersteine chromosomestudiesoneightspeciesoferyngiumlsaniculoideaeapiaceaefromargentina AT martinezs chromosomestudiesoneightspeciesoferyngiumlsaniculoideaeapiaceaefromargentina AT poggiol chromosomestudiesoneightspeciesoferyngiumlsaniculoideaeapiaceaefromargentina
_version_	1807319079035338752

Chromosome studies on eight species of Eryngium L. (Saniculoideae, Apiaceae) from Argentina

Ejemplares similares