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Table 2 Genome size, karyotype length and rDNA loci number and localization in Prospero

From: Chromosomal diversification and karyotype evolution of diploids in the cytologically diverse genus Prospero(Hyacinthaceae)

Cytotype

5S and 35S rDNA loci number and localization1, 2

Genome size

Chromosome size

(Accession number)

1C (pg) ± SD

HKL (μm) ± SD

Prospero hanburyi

    

(H397)

5S (L-Pchr1)

6.81 ± 0.017

44.90 ± 4.04

35S (S-STchr2)

P. obtusifolium

    

(H540)

5S (L-Pchr2, L-Pchr3, S-Pchr3)

4.94 ± 0.039

29.01 ± 0.77

35S (S-Pchr3)

P. autumnale complex

    

AA

    

(H551)

5S (S-Pchr2)

7.85 ± 0.045

48.35 ± 7.15

35S (L-Pchr3)

B7B7

    

(H450)

5S (L-Dchr1)

4.23 ± 0.048

33.76 ± 1.45

35S (L-Pchr3)

(H424)

5S (L-Dchr1)

4.45 ± 0.023

28.70 ± 1.74

35S (L-Pchr3)

B6B6

    

(H274)

5S (L-Dchr1, S-Pchr2)

6.27 ± 0.083

38.34 ± 1.24

35S (L-Pchr3)

B5B5

    

(H640)

5S (L-Dchr1)

4.86 ± 0.002

29.67 ± 2.58

35S (S-Pchr3)

Translocations

    

B6B6

5S (L-Dchr1, S-Pchr2)

6.05 ± 0.011

34.97 ± 3.98

(H197)

35S (S-Pchr6)

B6B6

5S (L-Dchr1, S-Pchr2)

6.07 ± 0.031

30.03 ± 1.99

(H340)3

35S (L-Pchr3, S-Pchr6)

  1. 1 L, long arm; S, short arm; D, distal (interstitial) location of 5S rDNA; P, pericentric location of 5S or 35S rDNA; ST, subterminal location of 35S rDNA; chr, number of the chromosome.
  2. 2Scale bar = 1 μm; only the chromosomes bearing rDNA are shown: filled and open circles indicate position of 35S and 5S rDNA loci, respectively.
  3. 3Heterozygote; both chromosomes carrying 35S rDNA (chromosome 3 and chromosome 6) are shown.