Gene counts in a variety of species

Range Table - link
Organism Various
Reference Pertea M, Salzberg SL. Between a chicken and a grape: estimating the number of human genes. Genome Biol. 2010 11(5):206. doi: 10.1186/gb-2010-11-5-206 p.2 figure 1PubMed ID20441615
Primary Source International Chicken Genome Sequencing Consortium: Sequence and comparative analysis of the chicken genome provide unique perspectives on vertebrate evolution. Nature 2004, 432: 695-716. & Jaillon et al.: The grapevine genome sequence suggests ancestral hexaploidization in major angiosperm phyla. Nature 2007, 449: 463-467.PubMed ID15592404, 17721507
Comments "Viruses, the simplest living entities, have only a handful of genes but are exquisitely well adapted to their environments. Bacteria such as Escherichia coli have a few thousand genes, and multicellular plants and animals have two to ten times more. Beyond these simple divisions, the number of genes in a species bears little relation to its size or to intuitive measures of complexity. The chicken and grape gene counts shown here are based on draft genomes [primary sources] and may be revised substantially in the future." "[Researchers'] personal best guess for the total number of human genes is 22,333, which corresponds to the current gene total at NCBI."
Entered by Uri M
ID 110420