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Due to modern techniques of DNA analysis, many genomes have been sequenced and analyzed. A famous example is the human genome through the Human Genome Project.

Human Genome Project

The human genome project was an international scientific research effort to fully map out the human genome. This project was started by James D. Watson at the US Institute of Health, but research centers worked on the project all over the world; such as France, Germany, Japan, China, the United Kingdom, and India. So far about 92.3% of the genome has been sequenced, but its difficult to determine due to non-coding sequences of DNA or "junk" DNA.

The genome project uncovered some key findings such as the genome of the human race is 99.9% alike.

Homology

Sequencing genomes allow scientists to identify homologous proteins and establish evolutionary relationships. Furthermore if a newly discovered protein is homologous to a known protein, through homology scientists can make an educated guess on how the new protein functions.

The Impact of Sequencing on Medicine

The ability to quickly sequence the human genome in the future may have significant impacts on medicine. Knowledge about genes and an individual's DNA have already given scientists a way to predict the likelihood of certain diseases among individuals. This also allows one to analyze the chromosomal structure, the effects of evolution upon the genome, and protein structures and functions. In the future, gene therapy, genomic medicine, and preventative treatments may reduce the likelihood of disease and allow manufacturers to tailor drugs to specific individuals.

Eukaryotes are organisms containing cells that enclose complex organelles within a well-defined cell membrane. The defining characteristic that sets Eukaryotes and Prokaryotes apart is Eukaryotes' nucleus, or nuclear envelope, in which an organism's genetic information is contained.

The first eukaryotic genome to be sequenced is that of Saccharomyces cerevisiae (S. cerevisiae) in 1996, and it is commonly known as brewer's yeast. S. cerevisiae is the most useful type of yeast due to its utility in baking and brewing, so it is the most studied eukaryotic model organisms in molecular and cell biology, similar to **E. coli'**s role in the study of prokayortic organisms. Many proteins that are important to humans are studied by examining their homologs in yeasts. For example, signaling proteins and protein-processing enzymes are all discovered through the help of yeast genome.

Other fully sequenced organisms include: roundworm, fruitfly, pufferfish (first vertebrate to be sequenced after humans), and Arabidopsis thaliana.

The tables from below are taken from Wikipedia's list of sequenced eukaryotic genomes.

Protists

Chromista

The Chromista are a group of protists that contains the algal phyla Heterokontophyta, Haptophyta and Cryptophyta. Members of this group are mostly studied for evolutionary interest.

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Guillardia thetaCryptomonadModel organism0.551 Mb ( nucleomorph genome only)464 [ 1 ]Canadian Institute of Advanced Research, Philipps-University Marburg and the University of British Columbia2001 [ 1 ]
Thalassiosira pseudonana Strain:CCMP 1335Diatom2.5 Mb11,242 [ 2 ]Joint Genome Institute and the University of Washington2004 [ 2 ]
Phaeodactylum tricornutum Strain: CCAP1055/1Diatom27.4 Mb10,402Joint Genome Institute2008 [ 3 ]

Alveolata

Alveolata are a group of protists which includes the Ciliophora, Apicomplexa and
Dinoflagellata. Members of this group are of particular interest to science as the cause of serious human and livestock diseases.

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Babesia bovisParasitic protozoanCattle pathogen8.2 Mb3,6712007 [ 4 ]
Cryptosporidium hominis Strain:TU502Parasitic protozoanHuman pathogen10.4 Mb3,994 [ 5 ]Virginia Commonwealth University2004 [ 5 ]
Cryptosporidium parvum C- or genotype 2 isolateParasitic protozoanHuman pathogen16.5 Mb3,807 [ 6 ]UCSF and University of Minnesota2004 [ 6 ]
Paramecium tetraureliaCiliateModel organism72 Mb39,642 [ 7 ]Genoscope2006 [ 7 ]
Plasmodium falciparum Clone:3D7Parasitic protozoanHuman pathogen ( malaria )22.9 Mb5,268 [ 8 ]Malaria Genome Project Consortium2002 [ 8 ]
Plasmodium knowlesiParasitic protozoanPrimate pathogen (malaria)23.5 Mb5,188 [ 9 ]2008 [ 9 ]
Plasmodium vivaxParasitic protozoanHuman pathogen (malaria)26.8 Mb5,433 [ 10 ]2008 [ 10 ]
Plasmodium yoelii yoelii Strain:17XNLParasitic protozoanRodent pathogen (malaria)23.1 Mb5,878 [ 11 ]TIGR and NMRC2002 [ 11 ]
Tetrahymena thermophilaCiliateModel organism104 Mb27,000 [ 12 ]2006 [ 12 ]
Theileria parva Strain:MugugaParasitic protozoanCattle pathogen ( African east coast fever )8.3 Mb4,035 [ 13 ]TIGR and the International Livestock Research Institute2005 [ 13 ]
Theileria annulata Ankara clone C9Parasitic protozoanCattle pathogen8.3 Mb3,792Sanger2005 [ 14 ]

Excavata

Excavata is a group of related free living and symbiotic protists; it includes the Metamonada, Loukozoa, Euglenozoa and Percolozoa. They are researched for their role in human disease.

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Leishmania major Strain:FriedlinParasitic protozoanHuman pathogen32.8 Mb8,272 [ 15 ]Sanger Institute2005 [ 15 ]
Giardia lambliaParasitic protozoanHuman pathogen11.7 Mb6,470 [ 16 ]2007 [ 16 ]
Trichomonas vaginalisParasitic protozoanHuman pathogen ( Trichomoniasis )160 Mb59,681 [ 17 ]TIGR2007 [ 17 ]
Trypanosoma brucei Strain:TREU927/4 GUTat10.1Parasitic protozoanHuman pathogen ( Sleeping sickness )26 Mb9,068 [ 18 ]Sanger Institute and TIGR2005 [ 18 ]
Trypanosoma cruzi Strain:CL Brener TC3Parasitic protozoanHuman pathogen ( Chagas disease )34 Mb22,570 [ 19 ]TIGR, Seattle Biomedical Research Institute and Uppsala University2005 [ 19 ]

Amoebozoa

Amoebozoa are a group of motile amoeboid protists, members of this group move or feed by means of temporary projections, called pseudopods. The best known member of this group is the slime mold which has been studied for centuries; other members include the Archamoebae, Tubulinea and Flabellinea. Some Amoeboza cause disease.

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Dictyostelium discoideum Strain:AX4Slime moldModel organism34 Mb12,500 [ 20 ]Consortium from University of Cologne, Baylor College of Medicine and the Sanger Centre2005 [ 20 ]
Entamoeba histolytica HM1:IMSSParasitic protozoanHuman pathogen ( amoebic dysentery )23.8 Mb9,938 [ 21 ]TIGR, Sanger Institute and the London School of Hygiene and Tropical Medicine2005 [ 21 ]

Plants

Higher plants

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Arabidopsis thaliana Ecotype:ColumbiaWild mustardModel plant120 Mb25,498 [ 22 ]Arabidopsis Genome Initiative [ 23 ]2000 [ 22 ]
Brassica napusRapeseedOil plant1,100 MbBayer CropScience2009 [ 24 ]
Oryza sativa ssp indicaRiceCrop and model organism420 Mb32-50,000 [ 25 ]Beijing Genomics Institute, Zhejiang University and the Chinese Academy of Sciences2002 [ 25 ]
Oryza sativa ssp japonicaRiceCrop and model organism466 Mb46,022-55,615 [ 26 ]Syngenta and Myriad Genetics2002 [ 26 ]
Ostreococcus tauriGreen algaSimple eukaryote12.6 MbLaboratoire Arago2006 [ 27 ]

early diverging land plant | 500 Mb | 39,458 [ 28 ] | US Department of Energy Office of Science Joint Genome Institute | 2008 [ 28 ] |
| Populus trichocarpa | Balsam poplar or Black Cottonwood | Carbon sequestration, model tree, commercial use (timber), and comparison to A. thaliana | 550 Mb | 45,555 [ 29 ] | The International Poplar Genome Consortium | 2006 [ 29 ] |
| Vitis vinifera | Grapevine PN40024 | Fruit crop | 490 Mb [ 30 ] | 30,434 [ 30 ] | The French-Italian Public Consortium for Grapevine Genome Characterization | 2007 [ 30 ] |
| Zea mays ssp mays | Corn (maize) | Fruit crop | 2,800 Mb | 50,000-60,000 | NSF | 2008 [ 31 ] |

Algae

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Cyanidioschyzon merolae Strain:10DRed algaSimple eukaryote16.5 Mb5,331 [ 32 ]University of Tokyo, Rikkyo University, Saitama University and Kumamoto University2004 [ 32 ]
Thalassiosira pseudonoana [ 33 ]Heterokont
Chlamydomonas reinhardtii [ 34 ]Model organism2007 [ 34 ]
Ostreococcus tauri [ 33 ]Chlorophyte

Fungi

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Ashbya gossypii Strain:ATCC 10895FungusPlant pathogen9.2 Mb4,718 [ 35 ]SyngentaAG and University of Basel2004 [ 35 ]
Aspergillus fumigatus Strain:Af293FungusHuman pathogen29.4 Mb9,926 [ 36 ]Sanger Institute , University of Manchester , TIGR , Institut Pasteur, Nagasaki University, University of Salamanca and OpGen2005 [ 36 ]
Aspergillus nidulans Strain:FGSC A4FungusModel organism30 Mb9,500 [ 37 ]2005 [ 37 ]
Aspergillus niger Strain:CBS 513.88FungusBiotechnology - fermentation33.9 Mb14,165 [ 38 ]2007 [ 38 ]
Aspergillus oryzae Strain:RIB40FungusUsed to ferment soy37 Mb12,074 [ 39 ]National Institute of Technology and Evaluation2005 [ 39 ]
Candida glabrata Strain:CBS138FungusHuman pathogen12.3 Mb5,283 [ 40 ]Génolevures Consortium [ 41 ]2004 [ 40 ]
Cryptococcus (Filobasidiella) neoformans JEC21FungusHuman pathogen20 Mb6,500 [ 42 ]TIGR and Stanford University2005 [ 42 ]
Debaryomyces hansenii Strain:CBS767YeastCheese ripening12.2 Mb6,906 [ 40 ]Génolevures Consortium2004 [ 40 ]
Encephalitozoon cuniculiMicrosporidiumHuman pathogen2.9 Mb1,997 [ 43 ]Genoscope and Université Blaise Pascal2001 [ 43 ]
Kluyveromyces lactis Strain:CLIB210Yeast10-12 Mb5,329 [ 40 ]Génolevures Consortium2004 [ 40 ]
Magnaporthe griseaFungusPlant pathogen37.8 Mb11,109 [ 44 ]2005 [ 44 ]
Neurospora crassaFungusModel eukaryote40 Mb10,082 [ 37 ]Broad Institute, Oregon Health and Science University, University of Kentucky, and the University of Kansas2003 [ 37 ]
Saccharomyces cerevisiae Strain:S288CBaker's yeastModel eukaryote12.1 Mb6,294 [ 45 ]International Collaboration for the Yeast Genome Sequencing [ 46 ]1996 [ 45 ]
Schizosaccharomyces pombe Strain:972hYeastModel eukaryote14 Mb4,824 [ 47 ]Sanger Institute and Cold Spring Harbor Laboratory2002 [ 47 ]
Yarrowia lipolytica Strain:CLIB99YeastIndustrial uses20 Mb6,703 [ 40 ]Génolevures Consortium2004 [ 40 ]

Animals

Mammals

OrganismTypeShotgun CoverageGenome sizeNumber of genes predictedOrganizationYear of completion
Bos taurusCow6*3.0 Gb [ 48 ] [ 49 ]22000 [ 50 ]Cattle Genome Sequencing International Consortium2009
Canis lupus familiarisDog7.6*2.4 Gb [ 51 ]19,300 [ 51 ]Broad Institute and Agencourt Bioscience2005 [ 51 ]
Cavia porcellusGuinea Pig2*3.4 GbThe Genome Sequencing Platform , The Genome Assembly Team [ 49 ]
Dasypus novemcinctusNine-banded Armadillo2* [ 52 ]3.0 GbBroad Institute [ 49 ]
Echinops telfairiHedgehog-Tenrec2* [ 52 ]Broad Institute
Equus caballusHorse6.8*2.1 Gb [ 49 ]Broad Institute et al. [ 49 ]2007 [ 53 ]
Erinaceus europaeusWestern European Hedgehog2* [ 52 ]Broad Institute
Felis catusCat2*3 Gb20,285The Genome Sequencing Platform, The Genome Assembly Team [ 49 ]2007 [ 54 ]
Homo sapiensHuman3.2 Gb [ 55 ]25,000 [ 55 ]Human Genome Project Consortium and Celera GenomicsDraft 2001 [ 56 ] [ 57 ] Complete 2006 [ 58 ]
Loxodonta africanaAfrican Elephant2* [ 52 ]3 GbBroad Institute
Macaca mulattaRhesus Macaque6*Macaque Genome Sequencing Consortium [ 49 ]
Microcebus murinusGray Mouse Lemur2* [ 52 ]The Genome Sequencing Platform, The Genome Assembly Team [ 49 ]
Monodelphis domesticaGray Short-tailed Opossum3.5 Gb18 - 20,000Broad Institute et al.2007 [ 49 ] [ 59 ]
Mus musculus Strain: C57BL/6JMouse2.5 Gb24,174 [ 60 ]International Collaboration for the Mouse Genome Sequencing [ 61 ]2002 [ 60 ]
Myotis lucifugusLittle Brown Bat2* [ 49 ]Broad Institute
Ochotona princepsAmerican Pika2* [ 52 ]Broad Institute
Ornithorhynchus anatinus [ 62 ]Platypus6* [ 49 ]Washington University
Oryctolagus cuniculusRabbit2* [ 52 ]2.5 GbBroad Institute et al. [ 49 ]
Otolemur garnettiiSmall-eared Galago, or Bushbaby2* [ 52 ]Broad Institute
Pan troglodytesChimpanzee6* [ 49 ]3.1 GbChimpanzee Sequencing and Analysis Consortium2005 [ 63 ]
Pongo pygmaeusOrangutan3.0 GbInstitute for Molecular Biotechnology [ 49 ]
Rattus norvegicusRat1.8* or better2.8 Gb [ 49 ]21,166 [ 64 ]Rat Genome Sequencing Project Consortium2004 [ 64 ]
Sorex araneusEuropean Shrew2* [ 52 ]3.0 Gb [ 49 ]The Genome Sequencing Platform, The Genome Assembly Team [ 49 ]
Spermophilus tridecemlineatusThirteen-lined Ground Squirrel2*The Genome Sequencing Platform, The Genome Assembly Team [ 49 ]
Tupaia belangeriNorthern Tree Shrew2*Broad Institute [ 49 ]

Insects

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Anopheles gambiae Strain: PESTMosquitoVector of malaria278 Mb13,683 [ 65 ]Celera Genomics and Genoscope2002 [ 65 ]
Apis melliferaHoney beeModel for eusocial behavior1800 Mb10,157 [ 66 ]The Honeybee Genome Sequencing Consortium2006 [ 66 ]
Bombyx mori Strain:p50TMoth (domestic silk worm)Silk production530 MbUniversity of Tokyo and National Institute of Agrobiological Sciences2004 [ 67 ]
Drosophila melanogasterFruit flyModel animal165 Mb13,600 [ 68 ]Celera, UC Berkeley, Baylor College of Medicine, European DGP2000 [ 68 ]

Nematodes

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Caenorhabditis briggsaeNematode wormFor comparison with C. elegans104 Mb19,500 [ 69 ]Washington University, Sanger Institute and Cold Spring Harbor Laboratory2003 [ 69 ]
Caenorhabditis elegans Strain:Bristol N2Nematode wormModel animal100 Mb19,000 [ 70 ]Washington University and the Sanger Institute1998 [ 70 ]
Meloidogyne haplaNorthern root-knot nematodeVegetable pathogen54 Mb14,420 [ 71 ]2008 [ 71 ]
Meloidogyne incognitaSouthern root-knot nematodePlant pathogen86 Mb19,212 [ 72 ]INRA , Genoscope and International M.incognita Genome Consortium [ 73 ]2008 [ 72 ]

Genome Sequencing Center, Washington University School of Medicine | 2008 [ 74 ] |

Other animals

OrganismTypeRelevanceGenome sizeNumber of genes predictedOrganizationYear of completion
Ciona intestinalisTunicateSimple chordate116.7 Mb16,000 [ 75 ]Joint Genome Institute2003 [ 75 ]
Ciona savignyiTunicate174 MbBroad Institute2007 [ 76 ]
Gallus gallusChicken1000 Mb20-23,000 [ 77 ]International Chicken Genome Sequencing Consortium2004 [ 77 ]
Strongylocentrotus purpuratusSea urchinModel eukaryote814 Mb23,300 [ 78 ]Sea Urchin Genome Sequencing Consortium2006 [ 78 ]
Takifugu rubripesPuffer fishVertebrate with small genome390 Mb22-29,000 [ 79 ]International Fugu Genome Consortium [ 80 ]2002 [ 81 ]
Tetraodon nigroviridisPuffer fishVertebrate with compact genome340 Mb [ 82 ]22,400 [ 82 ]Genoscope and the Broad Institute2004 [ 82 ]

Sequenced Bacterial Genomes

There are some techniques which are improving to be fast and high volume DNA sequencing like fluorescent dideoxynucleotide chain terminators, "shot gun" method etc. The bacterial genome of Haemophilus influenza wa determined in 1995 with a "short gun" method. The genomic DNA is cut randomly into fragments and then the computer programs brings out the whole sequence by matching the overlapping regions between these fragments. The H. influenzae genome consists of 1,830,137 base pairs and encodes approximately 1740 proteins. With these similar approaches, more than 100 bacterial and archaeal species including key model of organisms such as E.coli, Salmonella typhimurium, and Archaeoglobus fulgidus, as well as pathogenic organisms such as Yersina pestis (causing bubonic plague) and Bacillus anthracis (anthrax).1

References

  1. Berg, Jeremy M. 2007. Biochemistry. Sixth Ed. New York: W.H. Freeman. 68-69, 78. 2. Voet, Voet, Pratt (2004). - Fundamentals of Biochemistry

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В изданияхStructural Biochemistry

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