Table 4.

Diversity estimates calculated in Phoenix theophrasti and various populations and subpopulations of Phoenix dactylifera

Populations	Ho	Hs	F IS (95% CI)
P. dactylifera	0.56	0.63	0.10 (0.084 – 0.14)
Siwa	0.56	0.60	0.060 (0.016 – 0.11)
Uncultivated desert	0.55	0.64	0.14 (0.072 – 0.23)
Oasis	0.56	0.57	0.015 (−0.028 – 0.066)
named type	0.55	0.56	0.0077 (−0.036 – 0.054)
úšik #1	0.59	0.60	0.025 (−0.048 – 0.078)
úšik #2	0.57	0.59	0.02 (−0.060 – 0.12)
Eastern	0.57	0.58	0.013 (−0.012 – 0.038)
Western (with Siwa)	0.56	0.62	0.095 (0.064 – 0.14)
Western (without Siwa)	0.56	0.61	0.081 (0.052 – 0.12)
P. theophrasti	0.17	0.42	0.59 (0.26 – 0.83)

Abbreviations: H_O, observed heterozygosity; H_S, expected heterozygosity; F _IS, inbreeding coefficient.

Diversity estimates were calculated on western (or North African date palms) including or not Siwa accessions. Siwa population was split into two populations to oppose accessions sampled in the oasis (both named types and seedlings) with those sampled in abandoned oases in the surrounding desert. Further, accessions sampled in the oasis were further split into three populations: the named types and the seedlings collected in or nearby the gardens (úšik #1 and #2, respectively).