Adaptive phenotypic plasticity of gypsy moth digestive enzymes
2014
Аутори:
Mrdaković, MarijaStojković, Biljana
Perić Mataruga, Vesna
Ilijin, Larisa
Vlahović, Milena
Lazarević, Jelica
Тип документа:
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
The adaptiveness of plasticity of digestive enzyme responses to
allelochemical stress was tested on 32 full-sib families of gypsy moth
larvae from an oak forest population (the Quercus population) and 26
families from a locust-tree forest (the Robinia population), reared
either on control diet, or on tannin-supplemented diet. Using the
duration of larval development as an indirect measure of fitness,
phenotypic selection analyses revealed that lower specific activities of
total proteases and trypsin, and higher specific activity of leucine
aminopeptidase were adaptive for both populations in the control
environment. Plasticity was only shown to be costly for total proteases
and trypsin activity in Quercus larvae. In a stressful environment, the
most apparent adaptive response was a significant increase in lipase
activity. There was no plasticity cost for lipase activity. The two
populations differed in the direction of selection acting on
alpha-glucosidase activity, which favoured decreased activity in Quercus
larvae and increased activity in Robinia larvae in the control
environment. alpha-glucosidase activity in Quercus larvae is
characterized by cost of homeostasis, while cost of plasticity was shown
for Robinia larvae. The results obtained on the plasticity of digestive
enzyme activity indicate how this generalist species copes with
variation in plant allelochemicals.
Кључне речи:
Lymantria dispar L.; Allelochemical stress; Response to selection; Cost of plasticityИзвор:
Central European Journal of Biology, 2014, 9, 3, 309-319
DOI: 10.2478/s11535-013-0264-z
ISSN: 1895-104X