TABLE 1.

Percentage of RPA foci per chromosomal segment in the different bivalents (BV) and the X chromosome (X) of Thylamys elegans and Macropus eugenii. A χ2 of goodness of fit test (9 degrees of freedom) was performed to assess the deviation from a random distribution along chromosomes. Significance was considered when p ≤ 0.05. n: number of bivalents analyzed; f = number of foci.

Thylamys elegans (% RPA)
Segment	BV1 (n = 31) (f = 596)	BV2 (n = 35) (f = 540)	BV3 (n = 33) (f = 457)	BV4 (n = 35) (f = 550)	BV5 (n = 33) (f = 498)	BV6 (n = 35) (f = 377)		X (n = 28) (f = 302)
1	26.51	21.85	29.10	27.64	16.87	11.41		14.57
2	9.90	9.07	7.88	10.00	10.24	8.49		9.60
3	5.03	6.30	6.13	5.45	7.43	7.16		9.93
4	2.52	3.15	3.72	6.00	9.44	7.69		2.98
5	5.54	4.81	4.81	3.09	6.22	5.31		3.64
6	4.87	7.22	2.19	3.82	6.02	3.98		8.28
7	3.36	5.56	3.06	4.18	6.83	8.49		10.26
8	6.21	8.15	4.81	6.91	5.62	10.34		10.60
9	11.74	9.26	13.13	8.55	13.45	16.98		12.91
10	24.33	24.63	25.16	24.36	17.87	20.16		17.22
χ2	397.19	256.15	377.73	377.02	93.28	88.79		52.76
p value	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001		0.0004

Macropus eugenii (% RPA)
Segment	BV1 (n = 43) (f = 1525)	BV2 (n = 44) (f = 1051)	BV3 (n = 44) (f = 1001)	BV4 (n = 44) (f = 910)	BV5 (n = 43) (f = 808)	BV6 (n = 43) (f = 600)	BV7 (n = 42) (f = 305)	X (n = 31) (f = 408)
1	9.18	9.80	9.59	10.11	10.02	10.17	7.87	10.29
2	7.54	8.56	10.49	9.67	10.02	11.50	12.79	8.82
3	11.54	9.13	9.99	9.56	10.27	10.17	10.49	3.19
4	11.08	10.37	9.99	7.69	8.42	8.83	10.16	6.13
5	9.97	10.75	10.49	10.66	10.27	7.33	4.59	9.56
6	11.02	11.04	9.79	11.43	11.01	10.50	6.23	10.54
7	10.30	11.04	10.99	10.11	10.52	9.83	13.11	11.76
8	11.28	10.75	9.79	10.88	11.51	11.17	11.80	10.78
9	9.38	10.56	10.59	11.32	10.27	11.33	15.08	14.95
10	8.72	7.99	8.29	8.57	7.67	9.17	7.87	13.97
χ2	22.94	11.16	4.98	11.54	9.47	8.93	30.31	43.81
p value	0.006	0.2649	0.8357	0.2406	0.3946	0.4435	0.0004	<0.0001