Genomic signatures of near-extinction and rebirth of the crested ibis and other endangered bird species

Table 2 Heterozygous SNPs in nine representative avian species

Common name	Latin name	Order	Conservation status	Heterozygosity of whole genome (10 ^-3) ^a	Heterozygosity of whole exons (10 ^-3) ^a	NS/S ^b
Crested ibis	Nipponia nippon	Ciconiiformes	EV (EN)	0.43	0.24	0.69
Little egret	Egretta garzetta	Ciconiiformes	LC	2.51	0.92	0.41
Dalmatian pelican	Pelecanuscrispus	Pelecaniformes	EV (VU)	0.6	0.34	0.84
Great black cormorant	Phalacrocoraxcarbo	Pelecaniformes	LC	1.39	0.56	0.57
Kea	Nestor notabilis	Psittaciformes	EV (VU)	0.91	0.45	0.63
Budgerigar	Melopsittacusundulatus	Psittaciformes	LC	4.31	2.21	0.32
Bald eagle	Haliaeetusleucocephalus	Accipitriformes	EV (Once EN)	0.43	0.22	0.84
White-tailed Eagle	Haliaeetusalbicilla	Accipitriformes	EV (Once VU)	0.4	0.21	0.80
Turkey vulture	Cathartes aura	Accipitriformes	LC	1.18	0.59	0.58

We classified endangered (EN) and vulnerable (VU) into endangered-vulnerable (EV) for the convenience of genetic analysis.
^aP <0.05.
^bP <0.01 (t test, EV versus LC).
LC, Least Concern; NS/S, the ratio of non-synonymous/synonymous heterozygosity.

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