Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*

Huberty M, Tielbörger K, Harvey JA, Müller C, Macel M (2014)
Journal of Chemical Ecology 40(4): 363-370.

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Due to global warming, species are expanding their range to higher latitudes. Some range expanding plants have become invasive in their new range. The Evolution of Increased Competitive Ability (EICA) hypothesis and the Shifting Defense Hypothesis (SDH) predict altered selection on plant defenses in the introduced range of invasive plants due to changes in herbivore pressures and communities. Here, we investigated chemical defenses (glucosinolates) of five native and seven invasive populations of the Eurasian invasive range expanding plant, Rorippa austriaca. Further, we studied feeding preferences of a generalist and a specialist herbivore among the populations. We detected eight glucosinolates in the leaves of R. austriaca. 8-Methylsulfinyloctyl glucosinolate was the most abundant glucosinolate in all plants. There were no overall differences between native and invasive plants in concentrations of glucosinolates. However, concentrations among populations within each range differed significantly. Feeding preference between the populations by a generalist herbivore was negatively correlated with glucosinolate concentrations. Feeding by a specialist did not differ between the populations and was not correlated with glucosinolates. Possibly, local differences in herbivore communities within each range may explain the differences in concentrations of glucosinolates among populations. Little support for the predictions of the EICA hypothesis or the SDH was found for the glucosinolate defenses of the studied native and invasive R. austriaca populations.
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Huberty M, Tielbörger K, Harvey JA, Müller C, Macel M. Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*. Journal of Chemical Ecology. 2014;40(4):363-370.
Huberty, M., Tielbörger, K., Harvey, J. A., Müller, C., & Macel, M. (2014). Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*. Journal of Chemical Ecology, 40(4), 363-370.
Huberty, M., Tielbörger, K., Harvey, J. A., Müller, C., and Macel, M. (2014). Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*. Journal of Chemical Ecology 40, 363-370.
Huberty, M., et al., 2014. Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*. Journal of Chemical Ecology, 40(4), p 363-370.
M. Huberty, et al., “Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*”, Journal of Chemical Ecology, vol. 40, 2014, pp. 363-370.
Huberty, M., Tielbörger, K., Harvey, J.A., Müller, C., Macel, M.: Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*. Journal of Chemical Ecology. 40, 363-370 (2014).
Huberty, Martine, Tielbörger, Katja, Harvey, Jeffrey A, Müller, Caroline, and Macel, Mirka. “Chemical defenses (glucosinolates) of native and invasive populations of the range expanding invasive plant* Rorippa austriaca*”. Journal of Chemical Ecology 40.4 (2014): 363-370.
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Natural selection on plant resistance to herbivores in the native and introduced range.
Valverde PL, Arroyo J, Nunez-Farfan J, Castillo G, Calahorra A, Perez-Barrales R, Tapia-Lopez R., AoB Plants 7(), 2015
PMID: 26205526

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