title: Venkatesh et al. reply.
authors.affiliation: 1] Comparative Genomics Laboratory, Institute of Molecular and Cell Biology, A*STAR, Biopolis, Singapore 138673. [2] Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228.
authors.forename: Byrappa
authors.initials: B
authors.lastname: Venkatesh
authors.affiliation: Comparative Genomics Laboratory, Institute of Molecular and Cell Biology, A*STAR, Biopolis, Singapore 138673.
authors.forename: Alison P
authors.initials: AP
authors.lastname: Lee
authors.affiliation: Department of Developmental Immunology, Max-Planck-Institute of Immunobiology and Epigenetics, Stuebeweg 51, 79108 Freiburg, Germany.
authors.forename: Jeremy B
authors.initials: JB
authors.lastname: Swann
authors.affiliation: Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland 21201, USA.
authors.forename: Yuko
authors.initials: Y
authors.lastname: Ohta
authors.affiliation: Department of Microbiology and Immunology, University of Maryland, Baltimore, Maryland 21201, USA.
authors.forename: Martin F
authors.initials: MF
authors.lastname: Flajnik
authors.affiliation: Department of Pathology, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan.
authors.forename: Masanori
authors.initials: M
authors.lastname: Kasahara
authors.affiliation: Department of Developmental Immunology, Max-Planck-Institute of Immunobiology and Epigenetics, Stuebeweg 51, 79108 Freiburg, Germany.
authors.forename: Thomas
authors.initials: T
authors.lastname: Boehm
authors.affiliation: The Genome Institute at Washington University, St. Louis, Missouri 63108, USA.
authors.forename: Wesley C
authors.initials: WC
authors.lastname: Warren
mesh_terms: D000818:Animals; D019143:Evolution, Molecular; D016678:Genome / Q000235:genetics*; D012754:Sharks / Q000235:genetics*