Table 2. Chromosomal homology among Hylaeamys megacephalus (HME), Cerradomys langguthi (CLA) [20], Thaptomys nigrita (TNI), Akodon montensis (AMO) [23], Akodon sp. (ASP), Necromys lasiurus (NLA) [22], Neacomys sp. A (NSP-A) and Neacomys sp. B (NSP-B).

HME 2n = 54 FN = 62	TNI 2n = 52 FN = 52	AMO 2n = 24 FN = 42	ASP 2n = 10 FN = 14	NLA 2n = 34 FN = 34	CLA 2n = 46 FN = 62	NSP-A 2n = 58 FN = 68	NSP-B 2n = 54 FN = 66
1	4, 8	1q distal, 4q	1q interstitial, 2q distal	5q distal, 7	2q, 20	6, 8	2p, 4q
2	7, 12	1q interstitial, 7q	1p distal, 2q interstitial	9q interstitial, 13	10, 18, 19	2	3q
3	1 interstitial and distal	2q	2p distal	3q distal	1q interstitial, 3p	3	2p
4	13, 15	1p proximal, 5p distal	2q proximal and interstitial, 3q interstitial	1q proximal, 10q proximal, 11q distal	5, 13	1q distal	1q distal
5	2 distal, 5 proximal, 6 proximal	3q interstitial, 6p interstitial, 10	1p interstitial and proximal, 3q interstitial (2 segments)	6q distal, 12q interstitial, 14q distal	1p distal, 1q proximal, 8	19, 22, 24, 26p	3p distal, 21, 22, 24
6	3 proximal and interstitial	2p	2p interstitial	2q interstitial	4q distal	5q proximal, 18	5q proximal, 8
7	18	5q proximal, 8q	1p interstitial, 3q interstitial	1q interstitial, 4q proximal	3q interstitial	7, 9q interstitial	3p interstitial, 5p
8	6 distal	3p	3q proximal	1qinterstitial	4q proximal, 7	12, 13	6, 15
[9,10]	2 proximal, 5 distal	5q, 9p	1q interstitial, 3q interstitial	1q distal, 6q proximal	2p distal, 3q distal	9q (two different segments), 10	1p, 3p interstitial (two different segments)
11	9 distal, 10 proximal	1p interstitial, 6q distal	2q interstitial, 3q distal	10q interstitial, 12q distal	11q proximal, 6	20, 23p	11, 26
12	16	1q interstitial	2q interstitial	5q proximal	2p proximal	4q proximal	4q proximal
[13,22]	9 proximal, 11 interstitial and distal, 21	3q proximal, 4p distal, 6q proximal	1q interstitial, 3q interstitial (two segments)	4q distal, 12q proximal, 14q proximal	1q (two different segments), 9	1q interstitial, 26q, 27p	1q interstitial, 19, 23
14	17 proximal, 24	6p proximal, 8p interstitial	1p interstitial, 3q interstitial	2q interstitial, 15q interstitial	1p interstitial, 21	23q, 25p proximal	20, 25
15	19	9q	1q distal	8q distal	12	15	9
[16,17]	10 distal, 22	1p distal, 3q distal	2p proximal, 2q interstitial, 3qinterstitial	2q proximal, 10q distal	1q proximal, 11q distal	4q distal, 16	4q distal, 10
18	1 proximal, 23	1q proximal, 5p proximal	2pinterstitial, 2q interstitial, 3q interstitial	3q proximal, 9q proximal	16	17	7
19	17 distal	8p distal, 8q proximal	1p interstitial (two segments)	15q proximal and distal	1p interstitial, 3q proximal	14, 25p distal	18
20	11 proximal	4q proximal	1q proximal and interstitial	4q interstitial	1q distal	1q proximal	1q proximal
21	3 distal	2p distal	2p interstitial	2q distal	4p, 4q interstitial	5q distal	5q distal
23	20	7p	1p interstitial	8q proximal	15	21, 25q	14, 16
24	14	6p distal	3q interstitial (two segments)	9q distal	14	11	12
25	1 proximal	2p proximal	2p interstitial, 3q interstitial	3q interstitial, 11q proximal	17	28	13
26	25	11	4	16	22	27q	17
X	X	X (Xq)	X	X	X	Xq	X
Total	36 signs	38 signs	45 signs	40 signs	40 signs	40 signs	39 signs