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Abstract:

Eryngium L. (Umbelliferae) is a large genus including more than 250 species worldwide. The large morphological variability in this genus makes it difficult to delimit the species or to establish phylogenetic relationships. The occurrence of different ploidy levels within the genus might indicate a hybrid origin of the polyploid species. In the present study, the chromosome number and karyotype of E. regnellii are reported for the first time and the ploidy level of a population of E. paniculatum is confirmed. We compare the genomes of the diploids E. horridum and E. eburneum, the tetraploids E. megapotamicum and E. regnellii, and the hexaploids E. pandanifolium (as a representative of the whole pandanifolium complex) and E. paniculatum using genomic in situ hybridization (GISH). Although it was not possible to identify the parental species of the polyploid taxa analyzed, the GISH technique allowed us to postulate some hypotheses about their origin. Eryngium horridum and E. eburneum do not seem to be the direct progenitors of the polyploids analyzed. On the other hand, it seems that other diploid species unrelated to E. horridum and E. eburneum are involved in their origin. Our results are consistent with morphological and phylogenetic studies, indicating a close relationship between the species of the series Latifolia.

Registro:

Documento: Artículo
Título:Genomic relationships among diploid and polyploid species of the genus Eryngium L. using genomic in situ hybridization
Autor:Perthuy, G.Y.; Martínez, S.; Greizerstein, E.J.; Poggio, L.
Filiación:Laboratorio de Citogenética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, Buenos Aires C1428EGA, Argentina
Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, Buenos Aires C1428EGA, Argentina
Palabras clave:Eryngium; Genomic relationships; GISH; Polyploidy; plant DNA; article; diploidy; Eryngium; genetics; in situ hybridization; metaphase; methodology; nucleic acid hybridization; plant genome; polyploidy; species difference; Diploidy; DNA, Plant; Eryngium; Genome, Plant; In Situ Hybridization; Metaphase; Nucleic Acid Hybridization; Polyploidy; Species Specificity; Apiaceae; Eryngium; Eryngium horridum; Eryngium megapotamicum; Eryngium pandanifolium; Eryngium paniculatum
Año:2010
Volumen:53
Número:10
Página de inicio:824
Página de fin:831
DOI: http://dx.doi.org/10.1139/G10-071
Título revista:Genome
Título revista abreviado:Genome
ISSN:08312796
CODEN:GENOE
CAS:DNA, Plant
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_08312796_v53_n10_p824_Perthuy

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Citas:

---------- APA ----------
Perthuy, G.Y., Martínez, S., Greizerstein, E.J. & Poggio, L. (2010) . Genomic relationships among diploid and polyploid species of the genus Eryngium L. using genomic in situ hybridization. Genome, 53(10), 824-831.
http://dx.doi.org/10.1139/G10-071
---------- CHICAGO ----------
Perthuy, G.Y., Martínez, S., Greizerstein, E.J., Poggio, L. "Genomic relationships among diploid and polyploid species of the genus Eryngium L. using genomic in situ hybridization" . Genome 53, no. 10 (2010) : 824-831.
http://dx.doi.org/10.1139/G10-071
---------- MLA ----------
Perthuy, G.Y., Martínez, S., Greizerstein, E.J., Poggio, L. "Genomic relationships among diploid and polyploid species of the genus Eryngium L. using genomic in situ hybridization" . Genome, vol. 53, no. 10, 2010, pp. 824-831.
http://dx.doi.org/10.1139/G10-071
---------- VANCOUVER ----------
Perthuy, G.Y., Martínez, S., Greizerstein, E.J., Poggio, L. Genomic relationships among diploid and polyploid species of the genus Eryngium L. using genomic in situ hybridization. Genome. 2010;53(10):824-831.
http://dx.doi.org/10.1139/G10-071