Abstract:
Deschampsia antarctica Desv. (Poaceae), known as Antarctic hairgrass, is the only grass species and one of the two vascular plant species native to Antarctica and it is a valuable source for gene discovery associated with freezing-tolerance. In this work the karyotype of D. antarctica collected near Jubany Antarctic Base was reported for the first time. This species presents a chromosome number of 2n = 2x = 26, with karyotypic formula 10m + 6sm + 8st + 2t. The nucleolar organizer region is located in the short arm in one of the submetacentric pairs forming a terminal satellite. Aneusomaty, a phenomenon already reported in the genus, was detected during this study. The cytogenetic information, together with the recent phylogenetic data will be useful for breeding strategies in agronomically valuable crops. © 2008 Springer-Verlag.
Registro:
Documento: |
Artículo
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Título: | Karyological studies in Deschampsia antarctica Desv. (Poaceae) |
Autor: | Cardone, S.; Sawatani, P.; Rush, P.; García, A.M.; Poggio, L.; Schrauf, G. |
Filiación: | Facultad de Agronomía de la Universidad de Buenos Aires (FAUBA), Av. San Martín, Buenos Aires 4453-1417, Argentina Facultad de Ciencias Exactas y Naturales de la Universidad de Buenos Aires (FCEyN), Ciudad Universitaria, Intendente Güiraldes 2160, Buenos Aires C1428EGA, Argentina
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Palabras clave: | Aneusomaty; Chromosomes; Deschampsia antarctica; Karyotype; agronomy; chromosome; cytogenetics; freeze tolerance; grass; karyology; native species; new record; phylogenetics; reproductive strategy; Deschampsia antarctica; Poaceae; Tracheophyta |
Año: | 2009
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Volumen: | 32
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Número: | 3
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Página de inicio: | 427
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Página de fin: | 433
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DOI: |
http://dx.doi.org/10.1007/s00300-008-0535-8 |
Título revista: | Polar Biology
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Título revista abreviado: | Polar Biol.
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ISSN: | 07224060
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CODEN: | POBID
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_07224060_v32_n3_p427_Cardone |
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Citas:
---------- APA ----------
Cardone, S., Sawatani, P., Rush, P., García, A.M., Poggio, L. & Schrauf, G.
(2009)
. Karyological studies in Deschampsia antarctica Desv. (Poaceae). Polar Biology, 32(3), 427-433.
http://dx.doi.org/10.1007/s00300-008-0535-8---------- CHICAGO ----------
Cardone, S., Sawatani, P., Rush, P., García, A.M., Poggio, L., Schrauf, G.
"Karyological studies in Deschampsia antarctica Desv. (Poaceae)"
. Polar Biology 32, no. 3
(2009) : 427-433.
http://dx.doi.org/10.1007/s00300-008-0535-8---------- MLA ----------
Cardone, S., Sawatani, P., Rush, P., García, A.M., Poggio, L., Schrauf, G.
"Karyological studies in Deschampsia antarctica Desv. (Poaceae)"
. Polar Biology, vol. 32, no. 3, 2009, pp. 427-433.
http://dx.doi.org/10.1007/s00300-008-0535-8---------- VANCOUVER ----------
Cardone, S., Sawatani, P., Rush, P., García, A.M., Poggio, L., Schrauf, G. Karyological studies in Deschampsia antarctica Desv. (Poaceae). Polar Biol. 2009;32(3):427-433.
http://dx.doi.org/10.1007/s00300-008-0535-8