Evidence for selectively constrained 3D flower shape evolution in a Late Miocene clade of Malagasy Bulbophyllum orchids

© 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation.

Détails bibliographiques
Publié dans:The New phytologist. - 1979. - 232(2021), 2 vom: 26. Okt., Seite 853-867
Auteur principal: Artuso, Silvia (Auteur)
Autres auteurs: Gamisch, Alexander, Staedler, Yannick M, Schönenberger, Jürg, Comes, Hans Peter
Format: Article en ligne
Langue:English
Publié: 2021
Accès à la collection:The New phytologist
Sujets:Journal Article Research Support, Non-U.S. Gov't Bulbophyllum 3D geometric morphometrics Orchidaceae adaptive optima flower shape high-resolution X-ray computed tomography phylogenetic comparative methods species diversification
LEADER 01000caa a22002652c 4500
001 NLM32854650X
003 DE-627
005 20250302070249.0
007 cr uuu---uuuuu
008 231225s2021 xx |||||o 00| ||eng c
024 7 |a 10.1111/nph.17643  |2 doi 
028 5 2 |a pubmed25n1094.xml 
035 |a (DE-627)NLM32854650X 
035 |a (NLM)34309843 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Artuso, Silvia  |e verfasserin  |4 aut 
245 1 0 |a Evidence for selectively constrained 3D flower shape evolution in a Late Miocene clade of Malagasy Bulbophyllum orchids 
264 1 |c 2021 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Completed 29.09.2021 
500 |a Date Revised 02.03.2022 
500 |a published: Print-Electronic 
500 |a Citation Status MEDLINE 
520 |a © 2021 The Authors. New Phytologist © 2021 New Phytologist Foundation. 
520 |a Questions concerning the evolution of complex biological structures are central to the field of evolutionary biology. Yet, still little information is known about the modes and temporal dynamics of three-dimensional (3D) flower shape evolution across the history of clades. Here, we combined high-resolution X-ray computed tomography with 3D geometric morphometrics and phylogenetic comparative methods to test models of whole-flower shape evolution in the orchid family, using an early Late Miocene clade (c. 50 spp.) of Malagasy Bulbophyllum as model system. Based on landmark data of 38 species, our high-dimensional model fitting decisively rejects a purely neutral mode of evolution, suggesting instead that flower shapes evolved towards a primary adaptive optimum. Only a small number of recently evolved species/lineages attained alternative shape optima, resulting in an increased rate of phenotypic evolution. Our findings provide evidence of constrained 3D flower shape evolution in a small-sized clade of tropical orchids, resulting in low rates of phenotypic evolution and uncoupled trait-diversification rates. We hypothesise that this deep imprint of evolutionary constraint on highly complex floral structures might reflect long-term (directional and/or stabilizing) selection exerted by the group's main pollinators (flies) 
650 4 |a Journal Article 
650 4 |a Research Support, Non-U.S. Gov't 
650 4 |a Bulbophyllum 
650 4 |a 3D geometric morphometrics 
650 4 |a Orchidaceae 
650 4 |a adaptive optima 
650 4 |a flower shape 
650 4 |a high-resolution X-ray computed tomography 
650 4 |a phylogenetic comparative methods 
650 4 |a species diversification 
700 1 |a Gamisch, Alexander  |e verfasserin  |4 aut 
700 1 |a Staedler, Yannick M  |e verfasserin  |4 aut 
700 1 |a Schönenberger, Jürg  |e verfasserin  |4 aut 
700 1 |a Comes, Hans Peter  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t The New phytologist  |d 1979  |g 232(2021), 2 vom: 26. Okt., Seite 853-867  |w (DE-627)NLM09818248X  |x 1469-8137  |7 nnas 
773 1 8 |g volume:232  |g year:2021  |g number:2  |g day:26  |g month:10  |g pages:853-867 
856 4 0 |u http://dx.doi.org/10.1111/nph.17643  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 232  |j 2021  |e 2  |b 26  |c 10  |h 853-867