| Organism |
Size (bases) |
Genes |
Source |
| Escherichia coli (Bacterium) |
4.6 Million
|
3,000
|
|
| Sacchromyces cerevisiae (Yeast) |
15 Million
|
|
|
Neurospora crassa (Fungus)
|
39.9 Million
|
10,000 (Release Apr 2003)
|
|
C. elegans (Nematode)
|
100 Million
|
20,621
|
Wormbase WS108 release |
C. briggsae (Nematode)
|
104 Million
|
19,507 (Release Sept 2003)
|
Stein et al., PLoS Biology 2003 |
Drosophila melanogaster (Fruit fly)
|
120 Million
|
13,647
|
Flybase release 3.1 |
|
Anapheles gambiae (Mosquito) |
280 Million |
13,600
|
|
|
Strongylocentrotus purpuratus (sea urchin) |
814 Million |
23,300
|
Science 2006, vol. 314, 941-952 |
Ciona intestinalis (Ascidian sea squirt)
|
160 Million
|
15,800
|
|
Fugu rubripes (Pufferfish)
|
365 Million
|
38,000
|
|
Danio rario (Zebrafish)
|
1.7 Billion ?
|
|
|
Monodelphus domestica (opossum/metatherian/marsupial)
|
~3.5 billion
|
~20,000 |
Nature 2007, vol. 447, 167-177 |
Mouse
|
3 billion
|
30,000
|
|
Gallus gallus (Chicken)
|
1.2 Billion
|
|
Nature 2004, vol. 432, 679-680 |
Xenopus laevis (Frog)
|
3 Billion
|
|
|
| Human |
3 Billion
|
31,000
|
|
|
Largest human chromosome (chr 1) |
250 Million |
|
|
|
Smallest human chromosome (Y) |
50 Million |
|
|
Arabidopsis thaliana (flower)
|
100 Million
|
|
|
Rice cereal (subspecies: indica)
|
465 Million
|
|
|