Combining genome size and pollen morphology data to study species relationships in the genus Daucus (Apiaceae)

Kadluczka, Dariusz; Sliwinska, Elwira; Grzebelus, Ewa

doi:10.1186/s12870-022-03743-1

BMC Plant Biology

Table 2 Palynological characteristics and pollen viability of Daucus taxa and outgroup species

From: Combining genome size and pollen morphology data to study species relationships in the genus Daucus (Apiaceae)

Taxon	Pollen morphology					Pollen viability
Taxon	P ^a (µm, mean ± SE)	E ^b (µm, mean ± SE)	P/E	Shape class ^c	Size class ^d	N ^e	%, mean ± SE
*Daucus* I subclade
D. aureus	40.38 ± 0.08 a	18.14 ± 0.04 c	2.23	Perprolate	Medium	1658	93.6 ± 1.8 a
D. carota subsp.
capillifolius	27.97 ± 0.08 fg	16.69 ± 0.05 d	1.68	Prolate	Medium	1834	89.6 ± 4.6 ab
D. carota subsp.
sativus (DH)	26.42 ± 0.06 h	15.46 ± 0.05 f	1.71	Prolate	Medium	2145	75.0 ± 2.2 ab
D. carota subsp.
sativus (Dol)	26.51 ± 0.07 h	14.31 ± 0.04 h	1.85	Prolate	Medium	2080	91.6 ± 1.1 a
D. muricatus	38.59 ± 0.07 b	20.21 ± 0.04 a	1.91	Prolate	Medium	1232	95.5 ± 0.3 a
D. rouyi	33.30 ± 0.04 d	16.23 ± 0.03 e	2.05	Perprolate	Medium	1499	98.6 ± 0.5 a
D. sahariensis	27.73 ± 0.07 g	16.21 ± 0.06 e	1.71	Prolate	Medium	1542	82.7 ± 8.5 ab
D. syrticus	27.58 ± 0.08 g	14.74 ± 0.05 g	1.87	Prolate	Medium	306	98.7
*Daucus* II subclade
D. conchitae	31.78 ± 0.08 e	16.89 ± 0.05 d	1.88	Prolate	Medium	1676	87.2 ± 8.2 ab
D. glochidiatus	21.19 ± 0.08 k	15.34 ± 0.06 f	1.38	Prolate	Small	798	93.8 ± 4.3 a
D. guttatus	28.27 ± 0.10 f	16.75 ± 0.05 d	1.69	Prolate	Medium	1528	73.7 ± 5.5 ab
D. involucratus	24.86 ± 0.05 i	13.20 ± 0.04 i	1.88	Prolate	Small	1721	96.1 ± 1.6 a
D. littoralis	37.46 ± 0.10 c	19.26 ± 0.05 b	1.94	Prolate	Medium	1615	96.2 ± 0.8 a
D. pusillus	21.80 ± 0.08 j	14.87 ± 0.05 g	1.47	Prolate	Small	1098	60.9 ± 13.7 b
Outgroups
Caucalis platycarpos	41.90 ± 0.06 c	20.54 ± 0.03 c	2.04	Perprolate	Medium	1889	78.3 ± 5.5 a
Orlaya daucoides	42.85 ± 0.10 b	20.89 ± 0.06 b	2.05	Perprolate	Medium	1352	79.9 ± 14.0 a
O. daucorlaya	49.86 ± 0.15 a	23.54 ± 0.06 a	2.12	Perprolate	Medium	998	96.3 ± 0.9 a
Torilis arvensis	26.01 ± 0.05 d	12.06 ± 0.02 d	2.16	Perprolate	Medium	1647	90.7 ± 3.3 a

^a P, polar axis
^b E, equatorial diameter
^c According to the nomenclature of Erdtman [40]
^d According to the nomenclature of Halbritter et al. [36]
^e N, total number of analyzed pollen grains

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