Karyological studies in Deschampsia antarctica Desv. (Poaceae)
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...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_07224060_v32_n3_p427_Cardone |
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todo:paper_07224060_v32_n3_p427_Cardone2023-10-03T15:37:04Z Karyological studies in Deschampsia antarctica Desv. (Poaceae) Cardone, S. Sawatani, P. Rush, P. García, A.M. Poggio, L. Schrauf, G. Aneusomaty Chromosomes Deschampsia antarctica Karyotype agronomy chromosome cytogenetics freeze tolerance grass karyology native species new record phylogenetics reproductive strategy Deschampsia antarctica Poaceae Tracheophyta 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. Fil:Sawatani, P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:García, A.M. 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_07224060_v32_n3_p427_Cardone |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Aneusomaty Chromosomes Deschampsia antarctica Karyotype agronomy chromosome cytogenetics freeze tolerance grass karyology native species new record phylogenetics reproductive strategy Deschampsia antarctica Poaceae Tracheophyta |
| spellingShingle |
Aneusomaty Chromosomes Deschampsia antarctica Karyotype agronomy chromosome cytogenetics freeze tolerance grass karyology native species new record phylogenetics reproductive strategy Deschampsia antarctica Poaceae Tracheophyta Cardone, S. Sawatani, P. Rush, P. García, A.M. Poggio, L. Schrauf, G. Karyological studies in Deschampsia antarctica Desv. (Poaceae) |
| topic_facet |
Aneusomaty Chromosomes Deschampsia antarctica Karyotype agronomy chromosome cytogenetics freeze tolerance grass karyology native species new record phylogenetics reproductive strategy Deschampsia antarctica Poaceae Tracheophyta |
| description |
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. |
| format |
JOUR |
| author |
Cardone, S. Sawatani, P. Rush, P. García, A.M. Poggio, L. Schrauf, G. |
| author_facet |
Cardone, S. Sawatani, P. Rush, P. García, A.M. Poggio, L. Schrauf, G. |
| author_sort |
Cardone, S. |
| title |
Karyological studies in Deschampsia antarctica Desv. (Poaceae) |
| title_short |
Karyological studies in Deschampsia antarctica Desv. (Poaceae) |
| title_full |
Karyological studies in Deschampsia antarctica Desv. (Poaceae) |
| title_fullStr |
Karyological studies in Deschampsia antarctica Desv. (Poaceae) |
| title_full_unstemmed |
Karyological studies in Deschampsia antarctica Desv. (Poaceae) |
| title_sort |
karyological studies in deschampsia antarctica desv. (poaceae) |
| url |
http://hdl.handle.net/20.500.12110/paper_07224060_v32_n3_p427_Cardone |
| work_keys_str_mv |
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1807321421541539840 |