TY  - GEN
A1  - Jantzen, Friederike
A1  - Lynch, Joseph H.
A1  - Kappel, Christian
A1  - Höfflin, Jona
A1  - Skaliter, Oded
A1  - Wozniak, Natalia Joanna
A1  - Sicard, Adrien
A1  - Sas, Claudia
A1  - Adebesin, Funmilayo
A1  - Ravid, Jasmin
A1  - Vainstein, Alexander
A1  - Hilker, Monika
A1  - Dudareva, Natalia
A1  - Lenhard, Michael
T1  - Retracing the molecular basis and evolutionary history of the loss of benzaldehyde emission in the genus Capsella
T2  - Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe
N2  - 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.
T3  - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 775 
KW  - benzaldehyde
KW  - Capsella
KW  - cinnamate-CoA ligase
KW  - evolution
KW  - floral scent
KW  - selfing syndrome
KW  - shepherd’s purse
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-437542
SN  - 1866-8372
IS  - 775
SP  - 1349
EP  - 1360
ER  -