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Comparative Gene-omics, Comparative Gene-omics - Coggle Diagram
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Comparative Gene-omics
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tblastx or protein sequence comparisons are more sensitive to recover differences, than blastn or nucleotide level
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Multiple alignment at whole genome level can be intractable - so gene-wise comparison is more practical
Difficult because of rearrangements, sequence divergence, duplications and computational complexity
So instead of whole genome alignments, cluster homologous genes
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Paralogue - type of homologous gene that diverges after duplication of gene, leading to different functions in each due to environmental selection pressures.
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Group homologous proteins - based on sequence similarity, synteny and operons
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Should have good annotation quality - consider missing genes, false genes
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