RT Journal Article
T1 Is there a hybridization barrier between Gentiana lutea color morphs?
A1 Losada, María
A1 Veiga Blanco, Tania
A1 Guitián Rivera, Javier Ángel
A1 Guitián Rivera, José
A1 Guitián Rivera, Pablo
A1 Sobral Bernal, Mª Mar
K1 Pollen vectors
K1 Gentiana lutea
K1 Flower color morphs
K1 Self-incompatibility
K1 Hybridization barrier
K1 Outcrossing success
AB In Gentiana lutea two varieties are described: G. lutea var. aurantiaca with orange corolla colors and G. lutea var. lutea with yellow corolla colors. Both color varieties co-occur in NW Spain, and pollinators select flower color in this species. It is not known whether a hybridization barrier exists between these G. lutea color varieties. We aim to test the compatibility between flower color varieties in G. lutea and its dependence on pollen vectors. Within a sympatric population containing both flower color morphs, we analyzed differences in reproductive success (number, weight, viability and germinability of seeds) depending on fertilization treatments (autogamy and xenogamy within variety and among varieties). We found a 93% reduction in number of seeds and a 37% reduction in seed weight respectively of autogamy treatments compared to xenogamy crossings. Additionally, reproductive success is higher within color varieties than among varieties, due to a 45% seed viability reduction on hybrids from different varieties. Our results show that G. lutea reproductive success is strongly dependent on pollinators and that a partial hybridization barrier exists between G. lutea varieties.
PB PeerJ Inc.
YR 2015
FD 2015
LK http://hdl.handle.net/10347/21803
UL http://hdl.handle.net/10347/21803
LA eng
NO Losada M, Veiga T, Guitián J, Guitián J, Guitián P, Sobral M. 2015. Is there a hybridization barrier between Gentiana lutea color morphs? "PeerJ." 3:e1308
NO This study is included in the project “Color polymorphism, geographic variation in theinteractions and phenotypic selection. The case of Gentiana lutea L. in the Cantabrian Mountains” was financially supported by Secretary of State of I+D+I, Ministry of Scienceand Innovation, Government of Spain (2011–2013)
DS Minerva
RD 25 abr 2026