Table 1.

Microsatellite mutations. (Locus ID, arbitrary identifier; N repeats, number of AG repeats; N lines, number of MA lines genotyped; Ins 18(26), number of insertions; Del 18(26), number of deletions; μ₁₈₍₂₆₎, per-generation mutation rate × 10⁴. Averages are means, s.e.m. in parentheses.)

species	locus ID	N repeats	N lines, 18°C	Ins 18	Del 18	μ18 (×104)	N lines, 26°C	Ins 26	Del 26	μ26 (×104)
Caenorhabditis briggsae	17/18	30.5	96	0	0	0	92	0	2	1.26
	35/36	14	96	2	6	8.09	93	10	13	1.43
	39/40	16.5	96	0	0	0	92	2	1	1.89
	47/48	19.5	92	1	1	2.11	92	2	0	1.26
	61/62	22	96	0	0	0	92	0	0	0
	63/64	19	96	0	0	0	93	0	0	0
	73/74	21	96	0	0	0	93	0	1	0.62
	77/78	22	96	0	0	0	92	0	1	0.63
	79/80	13	96	2	1	3.03	93	1	1	1.24
	89/90	21.5	95	1	4	5.11	92	3	12	9.43
	91/92	19	96	0	0	0	91	0	1	0.64
	97/98	27.5	95	2	3	5.11	92	5	4	5.66
	99/100	9	91	0	0	0	93	1	0	0.62
	113/114	17.5	96	0	0	0	88	0	0	0
	115/116	28.5	96	1	8	9.10	91	3	5	5.09
	117/118	15.5	95	0	3	3.07	92	0	2	1.26
	average	19.75	95.3			2.23 (0.78)	91.9			2.74 (1.01)
Caenorhabditis elegans	16	19	93	0	0	0	77	1	1	1.58
	17	21.5	94	1	0	1.03	76	3	0	2.41
	19	24	94	1	0	1.03	77	4	0	3.17
	20	25	93	0	1	1.04	77	5	2	5.54
	36	15.5	94	2	0	2.07	77	0	0	0
	37	18.5	81	0	0	0	65	0	0	0
	38	25	94	0	0	0	77	2	1	2.38
	39	26	94	2	0	2.07	77	1	2	2.38
	40	29.5	94	1	0	1.03	77	3	2	3.96
	64	18.5	92	0	0	0	74	1	0	0.82
	65	19.5	93	0	0	0	77	2	0	1.58
	67	23.5	93	1	0	1.04	75	1	0	0.81
	68	26	80	0	1	1.21	64	1	3	3.81
	69	23.5	93	1	1	2.09	75	1	1	1.63
	70	28	94	0	0	0	77	2	0	1.58
	average	23.1	91.7			0.84 (0.21)	74.8			2.11 (0.40)