Abstract
The study aimed to understand the molecular evolution of the pathogen recognition peptidoglycan (PGN) proteins and their role in regulating the immune response against infectious diseases in Drosophila melanogaster. D. melanogasterWe obtained the PGRP proteins from 11 different species of Drosophila and analyzed the different evolutionary trends that might be associated with them. We were able to identify the evidence of strong positive selection taking place for these proteins. We investigated the diversity and function of the PGN proteins in D. melanogaster and related species through a combination of bioinformatics approaches. They found that the PGN proteins have undergone rapid and diverse evolution, with some undergoing positive selection and others experiencing gene duplication and loss. The study also revealed that different PGN proteins play distinct roles in regulating the immune response to bacterial infections, with some responding specifically to certain types of bacteria. The research provides valuable insights into the evolution and function of the PGN proteins in the immune response of D. melanogaster. It highlights their potential relevance to pathogen recognition and immune defence in other organisms.
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