Artículo
Abstract:
Evidence from recent molecular studies suggested a reappraisal of genome relationships between Larrea ameghinoi and the other South American species of the genus. As a consequence, new attemps to study the meiotic pairing of the L. ameghinoi x L. cuneifolia hybrids were undertaken (2n = 3x = 39). Mean number of bivalents and univalents were 9.8 and 19.4, respectively. Since the basic number x is 13, the interpretation that is favored is that L. ameghinoi (2n = 2x = 26) (AA) and L. cuneifolia (2n = 4x = 52) (DDCC) share partially homeologous genomes (A and C) that are involved in most bivalent pairing and this would explain the partial seed fertility of these triploid hybrids (15-19.4 %). L. ameghinoi genome (A) could have retained several parts of an ancestral genome which makes possible at least some pairing with those of the other species and enable it to function as a pivotal genome producing some fertility (from partial to complete) in all the possible hybrid combinations with its three South American congeners. An appendix is included with the captions of the figures of chapter 2 from the book edited by Mabry et al. (1977) which were erroneously omitted in the editorial and printing process.
Registro:
| Documento: | Artículo |
| Título: | Larrea interspecific hybrids revisited (Zygophyllaceae) |
| Autor: | Hunziker, J.H.; Comas, C. |
| Filiación: | Inst. de Botánica Darwinion, Casilla de Correo 22, San Isidro, Argentina Dpto. de Ciencias Biológicas, Facultad de Ciencias Exactas y Nat., Universidad de Buenos Aires, Buenos Aires 1428, Argentina |
| Palabras clave: | Cytogenetics; Larrea hybrids; Zygophyllaceae; cytogenetics; genome; hybridization; Larrea; Larrea ameghinoi; Larrea cuneifolia; Zygophyllaceae |
| Año: | 2002 |
| Volumen: | 40 |
| Número: | 1-4 |
| Página de inicio: | 33 |
| Página de fin: | 38 |
| Título revista: | Darwiniana |
| Título revista abreviado: | Darwiniana |
| ISSN: | 00116793 |
| CODEN: | DARWA |
| Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v40_n1-4_p33_Hunziker |
Referencias:
- Hunziker, J.H., Palacios, R.A., Soriano, A., Hibridación natural en especies sudamericanas de Larrea (Zygophyllaceae) (1969) Kurtziana, 5, pp. 55-66
- Hunziker, J.H., Palacios, R.A., de Valesi, A.G., Poggio, L., (1972) Evolución En El Género Larrea. Memorias de Simposia, Congreso Latinoamericano De Botánica, pp. 265-278. , México
- Hunziker, J.H., Palacios, R.A., Poggio, L., Naranjo, C.A., Yang, T.W., Geographic distribution, morphology, hybridization, cytogenetics and evolution (1977) Creosote Bush: Biology and Chemistry of Larrea in New World Deserts, pp. 10-47. , (T. J. Mabry, J. H. Hunziker and D. R. Di Feo, Eds.) US/IBP Synthesis Series No 6. Dowden, Hutchinson and Ross, Inc. PA
- Hunziker, J.H., Palacios, R.A., de Valesi, A.G., Poggio, L., Hybridization in Larrea (Zygophyllaceae): A morphological, cytogenetic and chemosystematic study (1978) Bol. Acad. Nac. Ci., 52, pp. 281-314
- Lía, V.V., Confalonieri, V.A., Comas, C.I., Hunziker, J.H., Molecular phylogeny of Larrea and its allies (Zygophyllaceae): Reticulate evolution and the probable time of creosote bush arrival to North America (2001) Molecular Phylogenetics and Evolution, 21, pp. 309-320
- Mabry, T.J., Hunziker, J.H., Di Feo, D.R., (1977) Creosote Bush: Biology and Chemistry of Larrea in New World Deserts, p. 284. , (Eds.), US/IBP Synthesis Series No 6. Dowden, Hutchinson and Ross, Inc. PA
- Nunez, O., An acetic haematoxylin squash method for small chromosomes (1968) Caryologia, 21, pp. 115-119
- Palacios, R.A., Hunziker, J.H., Observaciones sobre la taxonomía del género Larrea (Zygophyllaceae) (1972) Darwiniana, 17, pp. 473-476
- Saez, F.A., El empleo de la hematoxilina acética o propiónica para el estudio de los cromosomas con la técnica de aplastamiento (1960) Comun. Soc. Biol. Montevideo, , 11 de mayo 1960. (Mimeographed)
- Yang, T.W., Major chromosome races of Larrea divaricata in North America (1970) Journ. Arizona Acad. Sci., 6, pp. 41-45
- Yang, T.W., Hunziker, J.H., Poggio, L., Naranjo, C.A., Hybridization between South American jarilla and North American diploid creosote bush (Larrea, Zygophyllaceae) (1977) Pl. Syst. Evol., 126, pp. 331-346
Citas:
---------- APA ----------
Hunziker, J.H. & Comas, C. (2002) . Larrea interspecific hybrids revisited (Zygophyllaceae) . Darwiniana, 40(1-4), 33-38.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v40_n1-4_p33_Hunziker [ ]
---------- CHICAGO ----------
Hunziker, J.H., Comas, C. "Larrea interspecific hybrids revisited (Zygophyllaceae) " . Darwiniana 40, no. 1-4 (2002) : 33-38.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v40_n1-4_p33_Hunziker [ ]
---------- MLA ----------
Hunziker, J.H., Comas, C. "Larrea interspecific hybrids revisited (Zygophyllaceae) " . Darwiniana, vol. 40, no. 1-4, 2002, pp. 33-38.Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v40_n1-4_p33_Hunziker [ ]
---------- VANCOUVER ----------
Hunziker, J.H., Comas, C. Larrea interspecific hybrids revisited (Zygophyllaceae) . Darwiniana. 2002;40(1-4):33-38.Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00116793_v40_n1-4_p33_Hunziker [ ]
