Festuca apennina x F. pratensis triploid hybrids exceed their parents in adaptation to broad-environmental conditions

0571831 - ÚEB 2024 RIV DE eng J - Článek v odborném periodiku
Boller, B. - Schneider, M. K. - Zhao, C. - Bartoš, Jan - Majka, Joanna - Kopecký, David
Festuca apennina x F. pratensis triploid hybrids exceed their parents in adaptation to broad-environmental conditions.
Alpine Botany. Roč. 133, č. 1 (2023), s. 43-55. ISSN 1664-2201. E-ISSN 1664-221X
Grant CEP: GA ČR(CZ) GA20-10019S; GA MŠMT(CZ) EF16_019/0000827
Institucionální podpora: RVO:61389030
Klíčová slova: Asexual reproduction * Ecology * Festuca * Grass * Hybrid * Natural distribution * Triploid * Vegetation analysis
Obor OECD: Genetics and heredity (medical genetics to be 3)
Impakt faktor: 2.7, rok: 2022
Způsob publikování: Open access
https://doi.org/10.1007/s00035-022-00290-1

Occurrence of Festuca apennina De Not. (4 × Fape), F. pratensis Huds. (2 × Fp) and the triploid, sterile hybrid F. apennina × F. pratensis (3 × Fape × Fp) was studied in 12 regions of the Swiss Alps. In total, 1908 plants were sampled in elevational strata scaled by 50 m between 850 and 2000 m a.s.l., and accompanying vegetation was assessed for each sampling point. The hybrid 3 × Fape × Fp was more frequent and more dominant than both parental species around 1400 m, and had a wider elevational distribution than 2 × Fp and 4 × Fape, which were confined to lower and higher elevation, respectively. As evidenced by their preferred accompanying species, 2 × Fp colonizes dryer, nutrient poorer environments than 4 × Fape which clearly prefers wet and nutrient rich environments. On the contrary, 3 × Fape × Fp thrives similarly well in both environments. The ability to reach an important biomass proportion in a sward, and the wide environmental adaptation of 3 × Fape × Fp is favored by its capacity to strongly expand by rhizomes. A single genotype of 3 × Fape × Fp was found to colonize an entire field of 2.3 ha with a maximum distance between clonal plants of 304 m. It is concluded that 3 × Fape × Fp is a potentially valuable pasture plant for use at higher altitudes, but it may reduce biodiversity via suppressing less competitive plant species.
Trvalý link: https://hdl.handle.net/11104/0342740