Table 1 Correspondence between human and Xenarthran chromosomes based on chromosome painting with human probes

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]