Molecular pedigree reconstruction and estimation of evolutionary parameters in a wild Atlantic salmon river system with incomplete sampling: a power analysis

Table 4 Empirical pedigree statistics

	‘77-‘81 (28 loci)	‘78-‘82	‘79-’83 (28 loci)	‘80-‘84	‘81-‘85	‘82-‘86	Across all cohorts³
Samples available ¹
Candidate mothers	120 (120)	61	193 (193)	111	135	129	749
Candidate fathers	22 (22)	6	74 (74)	13	17	20	152
Offspring	145 (151)	150	201 (205)	118	213	49	876
Total	287 (293)²	217	468 (472)²	242	365	198	1482
Offspring with parent(s) identified
Maternal links identified	38 (51)	63	60 (93)	32	90	14	297
Paternal links identified	3 (3)	0	12 (21)	4	23	2	44
Total (at least one parent)	41 (54)	63	67 (109)	34	93	14	312
Total (both parents)	0 (0)	0	5 (5)	2	20	2	29
Maternal half sib families ⁴
Total family number	10 (11)	13	12 (18)	7	21	1	64
Mean family size	2.5 (2.8)	3.6	2.6 (2.9)	2.4	2.6	2.0	2.8
Maximum family size	4 (7)	6	6 (8)	3	5	2	7⁵
Paternal half sib families ⁴
Total family number	1 (1)	0	0 (4)	1	5	0	7
Mean family size	3 (3)	0	0 (2.5)	2	3.6	0	3.3
Maximum family size	3 (3)	0	0 (3)	2	6	0	6
Other
Full-sib families⁴	0 (0)	0	0 (0)	0	4	0	4
Two generational links	-	-	-		-	-	20

Statistics are given for six parent – offspring cohorts and the combined pedigree using 14 microsatellite loci and 95% confidence threshold for all cohorts and combined pedigree, and also with 28 microsatellite markers for the two parent – offspring cohorts (i.e. ‘77 – ‘81 and ‘79 – ‘83, listed in parentheses).
¹Successfully genotyped individuals that were included in the parentage analysis (see also: Table 1).
²The total number of individuals with 28 loci is slightly more than that of with 14 loci, as fewer individuals were filtered out due to the minimum number of loci genotyped (N <7) threshold.
³Based on 14 loci.
⁴Includes only families with more than 1 offspring identified.
⁵Maximum family size when cohorts’ combined is more than that of individual cohorts’ number due to a multiyear spawner having the highest clutch number.

ISSN: 2730-7182