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Practical 1. Predicting orthology for two homologous gene families. Species tree. Gene tree. Gene tree. Gene tree. (((((5_human:0.04, 6_human:0.04):0.03, (7_human:0.06, 8_human:0.06):0.01):0.06, ((1_mouse:0.30, 2_mouse:0.30):0.09, (3_mouse:0.18, 4_mouse:0.18):0.21):0.02):0.03,
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Practical 1 Predicting orthology for two homologous gene families
Gene tree (((((5_human:0.04, 6_human:0.04):0.03, (7_human:0.06, 8_human:0.06):0.01):0.06, ((1_mouse:0.30, 2_mouse:0.30):0.09, (3_mouse:0.18, 4_mouse:0.18):0.21):0.02):0.03, 9_dog:0.18):0.5, ((10_human:0.13, 11_mouse:0.40) : 0.03, 12_dog:0.18):0.5);
Practical • Sequences created with evolver • N.B. evolver takes tau(t)t = 3 dS * S / (S + N) + 3 dN * N / (S + N) • Try calculating trees with protdist and codeml dS and TreeBesT. • Are they the same? Why not?
Practical 2 Functional inference for a mouse highly duplicated gene families
Functional annotation • How many are there? • Where are they found? • Are the genes protein coding?http://www.ch.embnet.org/software/ClustalW.htmlhttp://coot.embl.de/pal2nal/#RunP2N • Do they contain functional domains?http://smart.embl-heidelberg.de/http://www.ebi.ac.uk/interpro/ • Can we infer function?http://www.ncbi.nlm.nih.gov/pubmed/!! • Can you sum this up in less than three sentences
My summary XLR superfamily includes members whose imprinted expression in the brain are associated with X-linked parent-of-origin effects on cognitive function. Most members of this family show testes expression including the meiosis regulated Xmr/Slx which are present in greater than 70 copies, depending on the mouse strain, in the mouse X and Y chromosomes. Xmr/Slx paralogs may play a part in post-meiotic X-versus-Y chromosome intragenomic conflict in spermatid cytoplasm.