Species Number of Gene Category of Speciess Homo_sapiens 18 Primates Pan_paniscus 17 Primates Microcebus_murinus 17 Primates Pan_troglodytes 16 Primates Aotus_nancymaae 16 Primates Callithrix_jacchus 16 Primates Colobus_angolensis_palliatus 15 Primates Otolemur_garnettii 15 Primates Mandrillus_leucophaeus 15 Primates Cercocebus_atys 15 Primates Carlito_syrichta 15 Primates Saimiri_boliviensis_boliviensis 14 Primates Cebus_capucinus 14 Primates Propithecus_coquereli 14 Primates Macaca_fascicularis 14 Primates Nomascus_leucogenys 14 Primates Rhinopithecus_roxellana 14 Primates Gorilla_gorilla 14 Primates Papio_anubis 14 Primates Chlorocebus_sabaeus 14 Primates Rhinopithecus_bieti 13 Primates Macaca_nemestrina 13 Primates Macaca_mulatta 12 Primates Pongo_abelii 11 Primates Mus_musculus 36 Rodents Mus_musculus_balbcj 23 Rodents Rattus_norvegicus 23 Rodents Mus_musculus_wsbeij 21 Rodents Mus_caroli 19 Rodents Mus_musculus_aj 18 Rodents Mus_musculus_cbaj 18 Rodents Mus_musculus_lpj 18 Rodents Mus_musculus_nzohlltj 18 Rodents Peromyscus_maniculatus_bairdii 18 Rodents Microtus_ochrogaster 18 Rodents Cricetulus_griseus_crigri 17 Rodents Mus_musculus_129s1svimj 17 Rodents Mus_musculus_c3hhej 17 Rodents Cricetulus_griseus_chok1gshd 16 Rodents Cavia_porcellus 16 Rodents Jaculus_jaculus 16 Rodents Mus_musculus_akrj 16 Rodents Mus_musculus_dba2j 16 Rodents Mus_musculus_nodshiltj 16 Rodents Mus_pahari 16 Rodents Mus_spretus 15 Rodents Mus_musculus_c57bl6nj 15 Rodents Mus_musculus_fvbnj 15 Rodents Mus_musculus_pwkphj 15 Rodents Heterocephalus_glaber_female 15 Rodents Chinchilla_lanigera 14 Rodents Heterocephalus_glaber_male 14 Rodents Nannospalax_galili 14 Rodents Mesocricetus_auratus 13 Rodents Mus_musculus_casteij 13 Rodents Ictidomys_tridecemlineatus 13 Rodents Fukomys_damarensis 12 Rodents Octodon_degus 12 Rodents Oryctolagus_cuniculus 12 Rodents Dipodomys_ordii 11 Rodents Cavia_aperea 10 Rodents Ochotona_princeps 9 Rodents Tupaia_belangeri 6 Rodents Felis_catus 18 Laurasiatheria Canis_lupus_dingo 15 Laurasiatheria Panthera_pardus 15 Laurasiatheria Capra_hircus 14 Laurasiatheria Panthera_tigris_altaica 14 Laurasiatheria Equus_caballus 13 Laurasiatheria Myotis_lucifugus 13 Laurasiatheria Vulpes_vulpes 13 Laurasiatheria Canis_familiaris 12 Laurasiatheria Equus_asinus_asinus 12 Laurasiatheria Ailuropoda_melanoleuca 12 Laurasiatheria Sus_scrofa 12 Laurasiatheria Bos_taurus 11 Laurasiatheria Tursiops_truncatus 11 Laurasiatheria Mustela_putorius_furo 11 Laurasiatheria Ursus_americanus 10 Laurasiatheria Ursus_maritimus 10 Laurasiatheria Ovis_aries 9 Laurasiatheria Erinaceus_europaeus 8 Laurasiatheria Pteropus_vampyrus 8 Laurasiatheria Vicugna_pacos 5 Laurasiatheria Sorex_araneus 4 Laurasiatheria Loxodonta_africana 15 Afrotheria Procavia_capensis 11 Afrotheria Echinops_telfairi 8 Afrotheria Dasypus_novemcinctus 10 Xenarthra Choloepus_hoffmanni 6 Xenarthra Gopherus_agassizii 14 BirdAndReptiles Anolis_carolinensis 14 BirdAndReptiles Pelodiscus_sinensis 13 BirdAndReptiles Chrysemys_picta_bellii 13 BirdAndReptiles Sphenodon_punctatus 13 BirdAndReptiles Gallus_gallus 12 BirdAndReptiles Ficedula_albicollis 11 BirdAndReptiles Taeniopygia_guttata 11 BirdAndReptiles Anas_platyrhynchos 10 BirdAndReptiles Meleagris_gallopavo 10 BirdAndReptiles Xenopus_tropicalis 20 Amphibians Danio_rerio 32 Fish Xiphophorus_maculatus 26 Fish Astyanax_mexicanus 23 Fish Acanthochromis_polyacanthus 23 Fish Amphiprion_percula 22 Fish Pygocentrus_nattereri 22 Fish Oreochromis_niloticus 22 Fish Scleropages_formosus 21 Fish Cyprinodon_variegatus 21 Fish Poecilia_formosa 20 Fish Stegastes_partitus 20 Fish Amphiprion_ocellaris 20 Fish Seriola_dumerili 20 Fish Poecilia_reticulata 20 Fish Gambusia_affinis 20 Fish Maylandia_zebra 20 Fish Mastacembelus_armatus 20 Fish Anabas_testudineus 19 Fish Astatotilapia_calliptera 19 Fish Kryptolebias_marmoratus 19 Fish Amphilophus_citrinellus 19 Fish Monopterus_albus 19 Fish Tetraodon_nigroviridis 19 Fish Cynoglossus_semilaevis 19 Fish Seriola_lalandi_dorsalis 19 Fish Pundamilia_nyererei 18 Fish Fundulus_heteroclitus 18 Fish Poecilia_latipinna 18 Fish Scophthalmus_maximus 18 Fish Labrus_bergylta 17 Fish Ictalurus_punctatus 17 Fish Oryzias_melastigma 17 Fish Oryzias_latipes_hsok 17 Fish Paramormyrops_kingsleyae 17 Fish Gasterosteus_aculeatus 17 Fish Hippocampus_comes 17 Fish Haplochromis_burtoni 16 Fish Oryzias_latipes_hni 16 Fish Oryzias_latipes 16 Fish Esox_lucius 16 Fish Periophthalmus_magnuspinnatus 16 Fish Poecilia_mexicana 16 Fish Lepisosteus_oculatus 15 Fish Gadus_morhua 14 Fish Takifugu_rubripes 14 Fish Neolamprologus_brichardi 14 Fish Mola_mola 14 Fish Xiphophorus_couchianus 13 Fish Phascolarctos_cinereus 16 OtherMammals Monodelphis_domestica 15 OtherMammals Sarcophilus_harrisii 12 OtherMammals Ornithorhynchus_anatinus 10 OtherMammals Notamacropus_eugenii 9 OtherMammals Latimeria_chalumnae 15 OtherVertebrates Eptatretus_burgeri 13 OtherVertebrates Petromyzon_marinus 6 OtherVertebrates Ciona_savignyi 7 OtherChordates Ciona_intestinalis 6 OtherChordates Caenorhabditis_elegans 8 OtherEukaryotes Drosophila_melanogaster 7 OtherEukaryotes Saccharomyces_cerevisiae 3 OtherEukaryotes