Phenotypic plasticity guides Moricandia arvensis divergence and convergence across the Brassicaceae floral morphospace
Metadatos
Mostrar el registro completo del ítemAutor
Gómez, José María; González Megías, Adela; Narbona, Eduardo; Navarro, Luis; Perfectti Álvarez, Francisco; Armas, CristinaEditorial
John Wiley and Sons Inc
Materia
Brassicaceae Floral morphospace Moricandia Phenotypic convergence Phenotypic divergence Phenotypic plasticity Pollination niches
Fecha
2021-10-17Referencia bibliográfica
Gómez, J. M., González‐Megías, A., Narbona, E., Navarro, L., Perfectti, F., & Armas, C. (2021). Phenotypic plasticity guides Moricandia arvensis divergence and convergence across the Brassicaceae floral morphospace. New Phytologist. [https://doi.org/10.1111/nph.17807]
Patrocinador
CITACA; Consejería de Economía, Conocimiento, Empresas y Universidad; Ministerio de Ciencia, Innovación y Universidades UNGR15‐CE‐3315; European Regional Development Fund; Xunta de Galicia; Junta de Andalucía IE19_238 EEZA CSIC, LIFE18 GIE/IT/000755Resumen
Many flowers exhibit phenotypic plasticity. By inducing the production of several phenotypes, plasticity may favour the rapid exploration of different regions of the floral morphospace. We investigated how plasticity drives Moricandia arvensis, a species displaying within-individual floral polyphenism, across the floral morphospace of the entire Brassicaceae family. We compiled the multidimensional floral phenotype, the phylogenetic relationships, and the pollination niche of over 3000 species to construct a family-wide floral morphospace. We assessed the disparity between the two M. arvensis floral morphs (as the distance between the phenotypic spaces occupied by each morph) and compared it with the family-wide disparity. We measured floral divergence by comparing disparity with the most common ancestor, and estimated the convergence of each floral morph with other species belonging to the same pollination niches. Moricandia arvensis exhibits a plasticity-mediated floral disparity greater than that found between species, genera and tribes. The novel phenotype of M. arvensis moves outside the region occupied by its ancestors and relatives, crosses into a new region where it encounters a different pollination niche, and converges with distant Brassicaceae lineages. Our study suggests that phenotypic plasticity favours floral divergence and rapid appearance of convergent flowers, a process which facilitates the evolution of generalist pollination systems.