Phenotypic plasticity in morphological features of Thelaxes suberi (Del Guercio, 1911) (Hemiptera: Aphidoidea) feed on Quercus (L.) species
Journal Title: Journal of Insect Biodiversity - Year 2017, Vol 5, Issue 8
Abstract
Phenotypic plasticity is a common and important phenomenon in aphids, particularly in host plant utilization. It has been shown that Thelaxes suberi species fed on three closely related Quercus species showed high amount of phenotypic plasticity in morphological characters. Thelaxes suberi population has the largest morphological features on Quercus infectoria and the smallest morphological features on the Quercus coccifera. It was thought that these differences related with the total protein content and level of amino acid in acorns of the host plant where Thelaxes individuals were collected during this study. Findings of the study indicated how high is phenotypic plasticity capacity of aphid species and interactions with host plant properties. Another important implication of the result is that as aphid has a close relationship with host plant and even small amount of changes in the same Quercus species caused that amount of plasticity in Thelaxes species. Recent ecological changes including climatic fluctuations directly influences host plants morphological/nutritional composition and might also impacts the diversity and distribution of aphid species. Findings were also discussed for possible changes in host plant range of the T. suberi as a result of the current phenotypic plasticity and possible interactions between different types of phenotypic plasticities.
Authors and Affiliations
Gazi Görür, Emin Demirtaş
Keywords
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