RT Journal Article T1 Selective pressures explain differences in flower color among Gentiana lutea Populations A1 Sobral Bernal, Mª Mar A1 Veiga Blanco, Tania A1 Domínguez Lapido, Paula A1 Guitián Rivera, Javier Ángel A1 Guitián Rivera, Pablo A1 Guitián Rivera, José AB Flower color variation among plant populations might reflect adaptation to local conditions such as the interacting animal community. In the northwest Iberian Peninsula, flower color of Gentiana lutea varies longitudinally among populations, ranging from orange to yellow. We explored whether flower color is locally adapted and the role of pollinators and seed predators as agents of selection by analyzing the influence of flower color on (i) pollinator visitation rate and (ii) escape from seed predation and (iii) by testing whether differences in pollinator communities correlate with flower color variation across populations. Finally, (iv) we investigated whether variation in selective pressures explains flower color variation among 12 G. lutea populations. Flower color influenced pollinator visits and differences in flower color among populations were related to variation in pollinator communities. Selective pressures on flower color vary among populations and explain part of flower color differences among populations of G. lutea. We conclude that flower color in G. lutea is locally adapted and that pollinators play a role in this adaptation. PB PLOS YR 2015 FD 2015 LK http://hdl.handle.net/10347/21901 UL http://hdl.handle.net/10347/21901 LA eng NO Sobral M, Veiga T, Domínguez P, Guitián JA, Guitián P, Guitián JM (2015) Selective Pressures Explain Differences in Flower Color among Gentiana lutea Populations. PLoS ONE 10(7): e0132522. https://doi.org/10.1371/journal.pone.0132522 NO This work was financed by the Plan Nacional de I + D + I (2008-2011), CGL2009-08959 Ministerio de Ciencia. T.V. was supported by a PhD grant from the Plan Galego de Investigación e Crecemento 2011/2015 (Plan I2C), Consellería de Educación e Ordenación Universitaria e Innovación DS Minerva RD 1 may 2026