RT Journal Article
T1 Genetic survey extension of the threatened Iberian Arnica montana L. revealed the presence of divergent plastid lineages and highly structured populations in northern Spain
A1 Bouza Fernández, María Carmen
A1 Lorenzo, Iria
A1 Rodríguez Guitián, Manuel Antonio
A1 Casanova Chiclana, Adrián
A1 Real Rodríguez, Carlos
A1 Romero Franco, Rosa
A1 Vera Rodríguez, Manuel
K1 Arnica montana
K1 Conservation
K1 Genetic diversity
K1 Management
K1 Molecular markers
K1 Population structure
AB Iberian populations of Arnica montana L. (Asteraceae) represent a valuable resource both for conservation and pharmaceutical industry. Previous genetic analyses pointed out the presence of different genetic groups, but a wide region is still genetically unexplored. In order to fill this scientific gap, the present study analysed a wider sampling area along the northern Iberian Peninsula. Nuclear (i.e. microsatellite loci) and plastid DNA (cpDNA) molecular markers were used to assess the levels of genetic diversity and the population structure in 16 locations, eight analysed for the first time in the present study and eight representative of the different genetic groups previously identified. The two divergent cpDNA groups previously described were found, but their distribution was extended and refined. Thus, one of the groups (suggested as ancestral) was predominantly distributed in adjacent zones of the Cantabrian coasts while the other (more related to Central-European populations) was predominant in inner Cantabrian regions and Pyrenees. Genetic diversity with microsatellite loci (He = 0.280) was in accordance with the figures previously described, with a high level of population differentiation (FST > 0.500) identifying the presence of up to five population genetic units. Genetic and geographical distances were not related (no isolation-by-distance pattern identified), suggesting an important effect of genetic drift. Finally, due to the conservation and evolutionary interest of the populations analysed, different management actions useful for the maintenance of wild A. montana resources are provided.Similar content being
PB Springer
SN 0925-9864
YR 2023
FD 2023
LK http://hdl.handle.net/10347/32555
UL http://hdl.handle.net/10347/32555
LA eng
NO Bouza, C., Lorenzo, I., Rodríguez-Guitián, M. A., Casanova, A., Real, C., Romero, R., and Vera, M. (2023). Genetic survey extension of the threatened Iberian Arnica montana L. revealed the presence of divergent plastid lineages and highly structured populations in northern Spain. Genetic Resources and Crop Evolution, 70(6), 1677–1689. https://doi.org/10.1007/s10722-022-01527-y
NO Open Access funding provided thanks to the CRUE-CSIC agreement with Springer Nature. This work was supported by Deputación de Lugo (Galicia, Spain) contract (Arnica studies, 2021/UC1362018-CP071).
DS Minerva
RD 4 may 2026