Shift happens: trailing edge contraction associated with recent warming trends threatens a distinct genetic lineage in the marine macroalga Fucus vesiculosus

Table 1 Genetic diversity of each population.

Location	N	H _E	H _O	F _IS	Â₂₀ ± SD	UAN
OV	21	0.489	0.498	0.009	4.76±0.089	1
RE	29	0.587	0.401	0.336^b	6.28±0.303	3
LG	48	0.420	0.342	0.197^b	5.12±0.335	1
VN	94	0.583	0.509	0.132^b	4.52±0.415	1
RL	48	0.571	0.377	0.349^b	5.04±0.358	2
ML	48	0.486	0.388	0.213^b	3.44±0.434	0
MG	96	0.457	0.437	0.050	4.20±0.200	2
TJ	96	0.381	0.346	0.096^a	4.16±0.297	1
RM	48	0.580	0.318	0.460^b	4.48±0.303	0
RF	48	0.410	0.380	0.083	3.44±0.219	0
TV	48	0.433	0.361	0.177^b	3.44±0.434	1
LX	44	0.323	0.218	0.335^b	3.08±0.228	0

^a<0.05 and ^b<0.001 using 10,000 permutations. Codes correspond to locations in Figure 1 and are ordered from north to south, bold letters are extinct populations; N, sample sizes; H_O and H_E, observed and expected heterozygosity; F_IS, inbreeding coefficient with significant values. Â₂₀, mean allelic richness normalized to the smallest sample size; SD, standard deviation of Â₂₀; UAN, unique allelic number.

ISSN: 1741-7007