"Horov\u00E1, Lucie" . "GB - Spojen\u00E9 kr\u00E1lovstv\u00ED Velk\u00E9 Brit\u00E1nie a Severn\u00EDho Irska" . "Bure\u0161, Petr" . "0305-7364" . . . "Genome size and GC content evolution of Festuca: Ancestral expansion and subsequent reduction" . "Background and Aims: Plant evolution is well known to be frequently associated with remarkable changes in genome size and composition; however, the knowledge of long-term evolutionary dynamics of these processes still remains very limited. Here a study is made of the fine dynamics of quantitative genome evolution in Festuca (fescue), the largest genus in Poaceae (grasses). Methods: Using flow cytometry (PI, DAPI), measurements were made of DNA content (2C-value), monoploid genome size (Cx-value), average chromosome size (C/n-value) and cytosine + guanine (GC) content of 101 Festuca taxa and 14 of their close relatives. The results were compared with the existing phylogeny based on ITS and trnL-F sequences. Key Results: The divergence of the fescue lineage from related Poeae was predated by about a 2-fold monoploid genome and chromosome size enlargement, and apparent GC content enrichment." . "Annals of Botany" . . . . . . . "3" . . . . "14310" . . . "Festuca; fescue; grasses; genome size evolution; chromosome size; base composition; GC content; polyploidy; phylogeny; retrotransposon dynamics; flow cytometry"@en . "Background and Aims: Plant evolution is well known to be frequently associated with remarkable changes in genome size and composition; however, the knowledge of long-term evolutionary dynamics of these processes still remains very limited. Here a study is made of the fine dynamics of quantitative genome evolution in Festuca (fescue), the largest genus in Poaceae (grasses). Methods: Using flow cytometry (PI, DAPI), measurements were made of DNA content (2C-value), monoploid genome size (Cx-value), average chromosome size (C/n-value) and cytosine + guanine (GC) content of 101 Festuca taxa and 14 of their close relatives. The results were compared with the existing phylogeny based on ITS and trnL-F sequences. Key Results: The divergence of the fescue lineage from related Poeae was predated by about a 2-fold monoploid genome and chromosome size enlargement, and apparent GC content enrichment."@en . "Genome size and GC content evolution of Festuca: Ancestral expansion and subsequent reduction"@en . . "Rossi, Graziano" . "[481375211FA1]" . . "101" . . "RIV/00216224:14310/08:00024152!RIV10-MSM-14310___" . "3"^^ . "P(IAA6163303), P(LC06073), Z(MSM0021622416)" . . "\u0160marda, Petr" . . "RIV/00216224:14310/08:00024152" . . . . . . "Genome size and GC content evolution of Festuca: Ancestral expansion and subsequent reduction"@en . . "369167" . . "Foggi, Bruno" . "5"^^ . "000253582900009" . . "Genome size and GC content evolution of Festuca: Ancestral expansion and subsequent reduction" . . . "13"^^ .