RT Journal Article
T1 Reconstruction of the spatio-temporal diversification and ecological niche evolution of Helianthemum (Cistaceae) in the Canary Islands using genotyping-by-sequencing data
A1 Albaladejo, Rafael
A1 Martín-Hernanz, Sara
A1 Reyes-Betancort, Alfredo
A1 Santos-Guerra, Arnoldo
A1 Olangua-Corral, María
A1 Aparicio, Abelardo
AB AbstractBackground and AimsSeveral biogeographical models have been proposed to explain the colonization and diversification patterns of Macaronesian lineages. In this study, we calculated the diversification rates and explored what model best explains the current distribution of the 15 species endemic to the Canary Islands belonging to Helianthemum sect. Helianthemum (Cistaceae).MethodsWe performed robust phylogenetic reconstructions based on genotyping-by-sequencing data and analysed the timing, biogeographical history and ecological niche conservatism of this endemic Canarian clade.Key ResultsOur phylogenetic analyses provided strong support for the monophyly of this clade, and retrieved five lineages not currently restricted to a single island. The pristine colonization event took place in the Pleistocene (~1.82 Ma) via dispersal to Tenerife by a Mediterranean ancestor.ConclusionsThe rapid and abundant diversification (0.75–1.85 species per million years) undergone by this Canarian clade seems the result of complex inter-island dispersal events followed by allopatric speciation driven mostly by niche conservatism, i.e. inter-island dispersal towards niches featuring similar environmental conditions. Nevertheless, significant instances of ecological niche shifts have also been observed in some lineages, making an important contribution to the overall diversification history of this clade.
PB Oxford Academic
SN 0305-7364
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/97419
UL https://hdl.handle.net/20.500.14352/97419
LA eng
NO Rafael G Albaladejo, Sara Martín-Hernanz, J Alfredo Reyes-Betancort, Arnoldo Santos-Guerra, María Olangua-Corral, Abelardo Aparicio, Reconstruction of the spatio-temporal diversification and ecological niche evolution of Helianthemum (Cistaceae) in the Canary Islands using genotyping-by-sequencing data, Annals of Botany, Volume 127, Issue 5, 9 April 2021, Pages 597–611
NO Ministerio de Economía y Competitividad (España)
DS Docta Complutense
RD 17 abr 2025