The effect of polyploidy and hybridization on the evolution of floral colour in Nicotiana (Solanaceae)

0446232 - BFÚ 2016 RIV GB eng J - Journal Article
McCarthy, E.W. - Arnold, S.E.J. - Chittka, L. - Le Comber, S. C. - Verity, R. - Dodsworth, S. - Knapp, S. - Kelly, L.J. - Chase, M. W. - Baldwin, I.T. - Kovařík, Aleš … Total 14 authors
The effect of polyploidy and hybridization on the evolution of floral colour in Nicotiana (Solanaceae).
Annals of Botany. Roč. 115, č. 7 (2015), s. 1117-1131. ISSN 0305-7364. E-ISSN 1095-8290
R&D Projects: GA ČR(CZ) GA13-10057S
Institutional support: RVO:68081707
Keywords : GENE-EXPRESSION * HUMMINGBIRD POLLINATION * SPECTRAL SENSITIVITY
Subject RIV: BO - Biophysics
Impact factor: 3.982, year: 2015

Background and Aims Speciation in angiosperms can be accompanied by changes in floral colour that may influence pollinator preference and reproductive isolation. This study investigates whether changes in floral colour can accompany polyploid and homoploid hybridization, important processes in angiosperm evolution. Methods Spectral reflectance of corolla tissue was examined for 60 Nicotiana (Solanaceae) accessions (41 taxa) based on spectral shape (corresponding to pigmentation) as well as bee and hummingbird colour perception in order to assess patterns of floral colour evolution. Polyploid and homoploid hybrid spectra were compared with those of their progenitors to evaluate whether hybridization has resulted in floral colour shifts.
Permanent Link: http://hdl.handle.net/11104/0248224