DC pole | Wartość | Język |
dc.contributor.author | Navrotska, Daria | - |
dc.contributor.author | Andreev, Igor | - |
dc.contributor.author | Betekhtin, Alexander | - |
dc.contributor.author | Rojek, Magdalena | - |
dc.contributor.author | Parnikoza, Ivan | - |
dc.contributor.author | Myryuta, Ganna | - |
dc.contributor.author | Szymanowska-Pułka, Joanna | - |
dc.contributor.author | Hasterok, Robert | - |
dc.contributor.author | Poronnik, Oksana | - |
dc.contributor.author | Myryuta, Natalia | - |
dc.contributor.author | Grakhov, Volodymyr | - |
dc.contributor.author | Ivannikov, Roman | - |
dc.contributor.author | Kunakh, Viktor | - |
dc.date.accessioned | 2018-12-10T12:31:47Z | - |
dc.date.available | 2018-12-10T12:31:47Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Polish Polar Research, Vol. 39, No. 4 (2018), s. 525–548 | pl_PL |
dc.identifier.issn | 2081-8262 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.12128/7379 | - |
dc.description.abstract | Different chromosomal forms of Deschampsia antarctica Desv. (Poaceae),
including diploids (2n=26), hypotriploid (2n=36–38) and a genotype with an occasional
occurrence of B chromosome (2n=26+0-1B) that originated from southern marginal
populations (Argentine Islands region, maritime Antarctic) were studied using molecular
cytogenetic, morphometric and biochemical methods. FISH analysis revealed variations
in the number of rDNA sites between the diploid and hypotriploid plants. The genome
size varied among plants with a different chromosome number and was on average
10.88 pg/2C for diploids and 16.46 pg/2C for hypotriploid. The mean values of leaf
length of plants grown in vitro varied within a range of 5.23–9.56 cm. The total phenolic
content ranged from 51.10 to 105.40 mg/g, and the total flavonoid content ranged
from 1.22 to 4.67 mg/g. The amount of phenolic compounds did not differ significantly
between the genotypes, while a variation in the flavonoid content was observed for L59
and DAR12. The diploids did not differ significantly among each other in terms of the
number of rDNA loci, but differed slightly in their genome size. The individuals of DAR12
carrying B chromosome were similar to other diploids in terms of their genome size, but statistically differed in leaf length. The hypotriploid had both a greater number of rDNA
sites and a larger genome size. No statistical correlations were observed between the
genome size and leaf length or genome size and accumulation of phenolic and flavonoid
compounds. The results of this study suggest that D. antarctica plants from the southern
edge of the range are characterised by the heterogeneity of the studied parameters. | pl_PL |
dc.language.iso | en | pl_PL |
dc.rights | Uznanie autorstwa-Użycie niekomercyjne-Bez utworów zależnych 3.0 Polska | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/pl/ | * |
dc.subject | Antarctic | pl_PL |
dc.subject | Deschampsia antarctica | pl_PL |
dc.subject | marginal populations | pl_PL |
dc.subject | variation | pl_PL |
dc.subject | phenotypic characteristics | pl_PL |
dc.title | Assessment of the molecular cytogenetic, morphometric and biochemical parameters of Deschampsia antarctica from its southern range limit in maritime Antarctic | pl_PL |
dc.type | info:eu-repo/semantics/article | pl_PL |
dc.relation.journal | Polish Polar Research | pl_PL |
dc.identifier.doi | 10.24425/118759 | - |
Pojawia się w kolekcji: | Artykuły (WNP)
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