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| Author(s): |
Dayane Pires da Silva
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | Rio Claro. 2018-01-08. |
| Institution: | Universidade Estadual Paulista (Unesp). Instituto de Biociências. Rio Claro |
| Defense date: | 2016-08-04 |
| Advisor: | Maurício Bacci Junior |
| Abstract | |
Symbiotic relationships with microorganisms are described as a form of evolutionary innovation that allows some animals access to nutrients which otherwise would not be available. The Attine ants are known for the habit of cultivating fungi which provide them with nutrients. Some of these nutrients are obtained when the fungus provides enzymes that are unstable or even absent in ants. In this work we show that the Attini ants presents amylases subjected a low selective pressure and a large amount of potentially harmful amino acid substitutions. These data corroborates the hypothesis that the function of amylase of ants was replaced by fungal amylase. We also demonstrate that, just as with derived Attine, in the basal Attine Mycocepurus goeldii two enzymes is deficient in arginine synthetic pathway, the argininosuccinate lyase and argininosuccinate synthase. These data indicate that supplementation of deficient enzymes in ants made by fungal is an ancient event in the evolutionary history of Attine. (AU) | |
| FAPESP's process: | 14/15939-3 - Transcriptomics analysis of carbohydrates and amino acids metabolism in ant Mycocepurus goeldii |
| Grantee: | Dayane Pires da Silva |
| Support Opportunities: | Scholarships in Brazil - Master |