Genome size variation in Deschampsia cespitosa sensu lato (Poaceae) in Eurasia

The grass Deschampsia cespitosa is a variable taxon out of which many varieties, subspecies and endemic species have been separated. In this paper, the variation in genome size (GS) and ploidy of this grass including several of its subspecies and two related species in Eurasia was investigated by fl...

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Veröffentlicht in:	Plant systematics and evolution 2022-02, Vol.308 (1), p.9, Article 9
Hauptverfasser:	Greimler, Josef, Temsch, Eva M., Xue, Zhiqing, Weiss-Schneeweiss, Hanna, Volkova, Polina, Peintinger, Markus, Wasowicz, Pawel, Shang, Hui, Schanzer, Ivan, Chiapella, Jorge O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Biomedical and Life Sciences Deschampsia cespitosa Diploids Endemic species Flow cytometry Genomes Grasses Habitat preferences Habitats Life Sciences Original Article Plant Anatomy/Development Plant Ecology Plant Sciences Plant Systematics/Taxonomy/Biogeography Plantlets Ploidy Tetraploidy Variation
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Zusammenfassung:	The grass Deschampsia cespitosa is a variable taxon out of which many varieties, subspecies and endemic species have been separated. In this paper, the variation in genome size (GS) and ploidy of this grass including several of its subspecies and two related species in Eurasia was investigated by flow cytometric (FCM) measurements. GS and ploidy data were also related to specific environments and reproduction mode. Ploidy levels found by FCM were confirmed by chromosome counts of diploid (2 n = 26) and tetraploid (2 n = 52) samples. Seminiferous (seed bearing) D. cespitosa was mainly diploid (GS between 3.754 and 5.438 pg/1C). GS variation in diploids showed a geographic pattern with a significant difference ( H = 41,441, P
ISSN:	0378-2697 1615-6110 2199-6881
DOI:	10.1007/s00606-021-01796-7