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| Author(s): |
Diogo Amaral Rebouças Melo
Total Authors: 1
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| Document type: | Master's Dissertation |
| Press: | São Paulo. |
| Institution: | Universidade de São Paulo (USP). Instituto de Biociências (IBIOC/SB) |
| Defense date: | 2012-10-01 |
| Examining board members: |
Gabriel Henrique Marroig Zambonato;
Renato Vicente
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| Advisor: | Gabriel Henrique Marroig Zambonato |
| Abstract | |
Quantitative morphological systems are described by continuous measurements. The genetic relation between these characteristics of the individuals is represented by the genetic additive co-variance matrix, the G matrix. Understanding the evolution of the G matrix is, therefore, of paramount importance for proper interpretation of the patterns of diversification we observe in nature. In this work we study computational models for the evolution of quantitative traits in natural populations, subject to different natural selection and internal conditions, focusing on the problem of the evolution of the pattern of morphological integration and modularity. We test two models with different sets of parameters in their ability to reproduce and elucidate natural patterns. Directional correlated selection was necessary for the shaping of the patterns of morphological integration, and correlated stabilizing selection was fundamental to the maintenance of these patterns (AU) | |
| FAPESP's process: | 10/04497-9 - Morphological evolution and modularity |
| Grantee: | Diogo Amaral Reboucas Melo |
| Support Opportunities: | Scholarships in Brazil - Master |