molecular biology and evolution in genomics era li jun and frederick c.c. leung...

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Molecular biology and evolution in genomics era Li Jun and Frederick C.C. Leung ([email protected]) 5N01, School of Biological Science, The University of Hong Kong

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Page 1: Molecular biology and evolution in genomics era Li Jun and Frederick C.C. Leung (fcleung@hkucc.hku.hk) 5N01, School of Biological Science, The University

Molecular biology and evolution in genomics era

Li Jun and Frederick C.C. Leung ([email protected])5N01, School of Biological Science, The University of Hong Kong

Page 2: Molecular biology and evolution in genomics era Li Jun and Frederick C.C. Leung (fcleung@hkucc.hku.hk) 5N01, School of Biological Science, The University

Genotype designation according to phylogenomic tree

Virus evolutionary and epidemiology study

Geographic transmission of virus

Estimation of time of the most recent common ancestor (tMRCA)

Page 3: Molecular biology and evolution in genomics era Li Jun and Frederick C.C. Leung (fcleung@hkucc.hku.hk) 5N01, School of Biological Science, The University

Web based tool for PRRSV molecular epidemiology and evolutionary analysis

Page 4: Molecular biology and evolution in genomics era Li Jun and Frederick C.C. Leung (fcleung@hkucc.hku.hk) 5N01, School of Biological Science, The University

Genome sequencing and assembly

o Gaps are randomly dispersed in the chromosome. Most of the large gaps reside in RNA gene regions.

o Read coverage along the genome are nearly uniform, with mild random fluctuation.

o Only ~10 potential mis-assembled regions can be detected when sequencing depth is >10x.

Page 5: Molecular biology and evolution in genomics era Li Jun and Frederick C.C. Leung (fcleung@hkucc.hku.hk) 5N01, School of Biological Science, The University

RNA seq and differential gene expression analysis

Page 6: Molecular biology and evolution in genomics era Li Jun and Frederick C.C. Leung (fcleung@hkucc.hku.hk) 5N01, School of Biological Science, The University

Metagenomics