Table 1.

Correspondence between human and Xenarthran chromosomes based on chromosome painting with human probes

Species	Associations of human autosomes	Human Chromosomes			References
		Conserved	Two blocks	Three or more blocks
Bradypus torquatus (2n = 50)	3/21, 4/8, 7/10, 7/16, 12/22(2x), 14/15, 17/19	1, 3, 4, 5, 6, 9, 11, 13, 14, 15, 17, 18, 20, 21, X	2, 7, 10, 12, 16, 19, 22	8	This work
Bradypus variegates (2n = 54)	3/21?, 4/8, 7/10, 7/16, 12/22, 12/22/16, 14/15, 17/19	5, 6, 9, 11, 13, 14, 15, 17, 18, 20, 21?, X	1, 2, 3, 4, 7, 10, 12, 19, 22	8, 16	This work
Bradypus tridactylus (2n = 52)	2/6, 3/21, 4/8, 7/10, 7/16, 11/19, 12/22, 12/22/16,	1, 5, 9, 11, 13, 14, 15, 17, 18, 20, 21, X	2, 3, 4, 7, 10, 12, 16, 19, 22	6, 8?	inferred from [31,46]
Choloepus hoffmanni (2n = 50)	3/21, 4/8, 7/16, 12/22(2x), 14/15, 16/19	1, 3, 4, 5, 6, 9, 10, 11, 13, 14, 15, 17, 18, 20, 21, X	2, 7, 12, 19, 22	8?, 16	[36]
Choloepus didactylus (2n = 65)	2/8, 3/21, 4/8, 7/10, 7/16, 12/22 (2x), 14/15	9, 13, 15, 17, 18, 20, 21, X	1, 3, 4, 5, 6, 10, 11, 12, 14, 16, 19, 22	2, 7, 8	[46]
Dasypus novemcinctus (2n = 64)	3/21(2x), 4/8, 7/16, 10/12, 12/22(2x), 14/15, 16/19	5, 9, 13, 14, 15, 17, 18, 20, X	1, 4, 6, 7, 10, 11, 16, 19?, 21, 22	2?, 3, 8, 12	[36]
Euphractus sexcinctus (2n = 58)	2/8, 3/21, 4/8, 7/10, 7/16, 12/22 (2x), 14/15, 16/19	5, 9, 13, 14, 15, 17, 18, 20, 21, X	1, 6, 7, 10, 11, 16, 19, 22	2, 3, 4, 8, 12,	[45]
Tamandua tetradactyla (2n = 54)	1/9, 1/13, 1/19, 2/8, 3/6, 3/21, 4/8, 7/16, 8/17, 12/22(2x), 14/15(2x), 16/19, 3/22, 5/11, 7/20, 20/7/10	9, 10, 13, 17, 18, 20, 21, X	2, 6, 7, 11, 12, 14, 15, 16, 19, 22	1, 3, 4, 5, 8	[36,46]