Retracing the molecular basis and evolutionary history of the loss of benzaldehyde emission in the genus Capsella

Bibliographische Detailangaben
Veröffentlicht in:	The New phytologist. - 1979. - 224(2019), 3 vom: 01. Nov., Seite 1349-1360
1. Verfasser:	Jantzen, Friederike (VerfasserIn)
Weitere Verfasser:	Lynch, Joseph H, Kappel, Christian, Höfflin, Jona, Skaliter, Oded, Wozniak, Natalia, Sicard, Adrien, Sas, Claudia, Adebesin, Funmilayo, Ravid, Jasmin, Vainstein, Alexander, Hilker, Monika, Dudareva, Natalia, Lenhard, Michael
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2019
Zugriff auf das übergeordnete Werk:	The New phytologist
Schlagworte:	Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, Non-P.H.S. Capsella benzaldehyde cinnamate-CoA ligase evolution floral scent selfing syndrome shepherd's purse mehr... Amino Acids Benzaldehydes Plant Proteins TA269SD04T

Beschreibung
Zusammenfassung:	© 2019 The Authors. New Phytologist © 2019 New Phytologist Trust. The transition from pollinator-mediated outbreeding to selfing has occurred many times in angiosperms. This is generally accompanied by a reduction in traits attracting pollinators, including reduced emission of floral scent. In Capsella, emission of benzaldehyde as a main component of floral scent has been lost in selfing C. rubella by mutation of cinnamate-CoA ligase CNL1. However, the biochemical basis and evolutionary history of this loss remain unknown, as does the reason for the absence of benzaldehyde emission in the independently derived selfer Capsella orientalis. We used plant transformation, in vitro enzyme assays, population genetics and quantitative genetics to address these questions. CNL1 has been inactivated twice independently by point mutations in C. rubella, causing a loss of enzymatic activity. Both inactive haplotypes are found within and outside of Greece, the centre of origin of C. rubella, indicating that they arose before its geographical spread. By contrast, the loss of benzaldehyde emission in C. orientalis is not due to an inactivating mutation in CNL1. CNL1 represents a hotspot for mutations that eliminate benzaldehyde emission, potentially reflecting the limited pleiotropy and large effect of its inactivation. Nevertheless, even closely related species have followed different evolutionary routes in reducing floral scent
Beschreibung:	Date Completed 22.07.2020 Date Revised 30.09.2020 published: Print-Electronic Citation Status MEDLINE
ISSN:	1469-8137
DOI:	10.1111/nph.16103