Table 1.

Number of Retrocopies, Transcribed Retrocopies, and Retrogenes

Taxonomic Group	Species	Retrocopiesa,b	Transcribed Retrocopiesb	Retrogenesb
Eutherian mammals	Human	3,771–18,700	358–1,304	∼120–692
	Chimpanzee	1,889–7,478	491–1,500	141–476
	Gorilla	4,638–7,706	491–1,461	215
	Orangutan	5,127–6,873	420–846	194
	Macaque	4,923–7,502	528–1,324	198
	Common marmoset	10,465
	Squirrel monkey	9,320
	Mouse	2,969–20,360	420	83–663
	Rat	3,298–7,364	389	83–567
	Cow	1,996		790
	Dog	19,13–3,505		409
Marsupials	Opossum	1,992–3,036	421	256
Monotremes	Platypus	260–542	67	88–92
Birds	Chicken	70–720	30	36–321
Reptiles	Anolis carolinensis	404		136
Amphibians	Xenopus tropicalis	398		140
Teleosts	Zebrafish	195–652		119–127
	Tetraodon nigroviridis	90–644		60–227
	Fugu rubripes	182		142
	Stickleback	132		111
	Medaka	218		131
	Coelacanth	472		85
Tunicates	Ciona	110		96
Cephalochordates	Lancelet	337		176
Dipterans	Drosophila melanogaster			94–102
	Anopheles gambiae			190
	Aedes aegypti			133c
Lepidoptera	Silkworm			27–68
Nematodes	Caenorhabditisd			9–48
Dicots	Arabidopsis thaliana	69–83		47–251
	Poplar	106		95
Monocots	Rice	150–1,235		495
Algae	Chlamydomonas			60
	Volvox			81

^aRetrocopies include both retropseudogenes and retrogenes except some references.

^bMinimum and maximum numbers of retrocopies, transcribed retrocopies and retrogenes are shown for taxa with multiple estimates.

^cA minimum of 133 retrogenes were annotated in A. aegypti.

^dRetrogenes from five Caenorhabditis species are shown.