Karyological studies of six taxa of the genus Allium L. (Amaryllidaceae) from Turkey

Figures & data

Table 1. Localities and voucher specimens of Allium taxa examined in the present study.

Taxon	Locality	Voucher
A. arlgirdense Blakelock	Hakkari, Yüksekova, Sat Mountains, South of Sat Lake, 3200 m, 11 August 2013 M. Fırat s.n.	VANF 30417
A. anacoleum Hand.-Mazz.	Hakkari, Yüksekova, Sat Mountains, 2700 m, 11 August 2013, M. Fırat s.n.	VANF 30454
aA. microspathum Ekberg	Van, Gürpınar, Hoşap, Güzeldere pass, 2700 m, 18 August 2014. M. Fırat s.n.	VANF 30670
aA. rhetoreanum Nábelek	Hakkari, Şemdinli, Alan River, 1481 m, 29 May 2014, M. Fırat s.n.	VANF 31040
aA. shirnakense L. Behçet & Rüstemoğlu	Şırnak, Beytüşşebap, near Üçağaç village, 1300 m, 27 May 2014, M. Fırat s.n.	VANF 30740
A. oreophilum C. A. Mey	Van, Başkale, İspiriz Mountain, 3300 m, 7 June 2014, M. Fırat s.n.	VANF 31011

^a Endemic taxon.

Figure 1 Somatic chromosomes in the studied taxa. (a) Allium arlgirdense; (b) A. anacoleum; (c) A. microspathum; (d) A. rhetoreanum; (e) A. shirnakense; (f) A. oreophilum. Scale bars 10 μm.

Figure 2 Haploid ideograms in the studied taxa. (a) Allium arlgirdense; (b) A. anacoleum; (c) A. microspathum; (d) A. rhetoreanum; (e) A. shirnakense; (f) A. oreophilum.

Table 2. Karyotype formula according to Levan et al. (1964) and characteristics of the investigated taxa.

Species	Range	HCL (μm)	p (μm)	q (μm)	Karyotype formula
	SC–LC (μm)	mean (± SD)	mean (± SD)	mean (± SD)
A. arlgirdense	6.11–9.25	61.61 (± 1.02)	4.31 (±0.70)	3.39 (±0.67)	14m + 2sm^sat
A. anacoleum	7.43–10.97	72.89 (± 1.13)	5.09 (±0.84)	4.02 (±0.54)	14m + 2sm^sat
A. microspathum	7.60–10.75	72.83 (± 1.01)	5.01 (±0.61)	4.09 (±0.63)	14m + 2sm^sat + 1stc
A. rhetoreanum	9.17–12.84	85.23 (± 1.09)	6.17 (±0.48)	4.48 (±0.75)	12m + 2m^sat + 2sm^sat
A. shirnakense	8.16–11.56	81.55 (± 1.04)	5.97 (±0.43)	4.22 (±0.71)	14m + 2sm^sat
A. oreophilum	11.59–16.26	109.73 (± 1.52)	7.98 (±0.66)	5.74 (±1.21)	14m + 2sm^sat

Abbreviations: SC: shortest chromosome length; LC: longest chromosome length; HCL: haploid chromosome length; p: mean long arm length; q: mean short arm length; SD: standard deviation.

Table 3. Karyo-morphometric parameters and symmetry indices for the investigated taxa.

Taxon	A1	A2	CVCL	CVCI	MCA
A. arlgirdense	0.19 ± 0.03	0.13 ± 0.02	13.04	13.91	12.04
A. anacoleum	0.19 ± 0.04	0.12 ± 0.03	12.03	10.40	11.39
A. microspathum	0.17 ± 0.01	0.11 ± 0.03	11.11	9.43	10.24
A. rhetoreanum	0.27 ± 0.03	0.10 ± 0.01	10.20	8.97	16.28
A. shirnakense	0.29 ± 0.02	0.10 ± 0.03	10.18	9.31	17.66
A. oreophilum	0.28 ± 0.04	0.11 ± 0.02	11.09	13.18	16.97

Figure 3 Scatter plot for the investigated taxa reported in Table 3: (a) against A₂ (x axis) and A₁ (y axis); (b) against CV_CL (x axis) and CV_CI (y axis); (c) against M_CA (x axis) and CV_CL (y axis); (d) against M_CA (x axis) and CV_CI (y axis).

Levan A, Fredga K, Sandberg AA. 1964. Nomenclature for centromeric position on chromosomes. Hereditas. 52(2):201–220.

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