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Table 1 Paphiopedilum species studied, diploid chromosome numbers, rDNA FISH patterns, and 5S-NTS sequence polymorphic sites

From: Dynamic distribution patterns of ribosomal DNA and chromosomal evolution in Paphiopedilum, a lady's slipper orchid

   Number of rDNA sites Positions of rDNA sitesb  
    5S 25S+5S    
Taxon 2n 25S major visible sitesa Co-localization 5S 25S 5S-NTS Polymorphic sites
Paphiopedilum         
   Subg. Parvisepalum         
Sect. Parvisepalum         
armeniacum 26 4 2 2 2 st t 104
delenatii 26 2 2 2 0 st t 178
emersonii 26 4 2 2 2 st t 124
hangianum 26 4 2 2 2 st t 120
malipoense 26 2 2 2 1 st t 94
micranthum 26 4 2 2 2 st t 59
   Subg. Paphiopedilum         
Sect. Concoloria         
bellatulum 26 2 2 2 0 i t 118
niveum 26 2 2 2 0 i t 198
Sect. Cochlopetalum         
liemianum 32 2 4 22 2 st, i, p, c t 162
moquettianum 34 2 4 20 2 st, i, p, c t 225
primulinum 32 2 4 25 2 st, i, p, c t 71
victoria-regina 34 2 4 24 2 st, i, p, c t 137
Sect. Paphiopedilum         
druryi 30 2 4 16 0 st, i, p, c t 184
fairrieanum 26 2 2 14 2 st, i, p, c t 146
henryanum 26 2 2 17 2 st, i, p, c t 180
hirsutissimum 26 2 6 21 2 st, i, p, c t 182
tigrinum 26 2 6 17 2 st, i, p, c t 141
Sect. Coryopedilum         
adductum 26 9 4 28 6 st, i, p, c t, st 180
gigantifolium 26 6 6 32 6 st, i, p, c t 210
glanduliferum 26 4 4 26 4 st, i, p, c t 202
randsii 26 4 4 30 4 st, i, p, c t, st 187
sanderianum 26 2 4 16 0 st, i, p, c t 143
stonei 26 2 4 25 2 st, i, p, c t 114
supardii 26 9 4 26 7 st, i, p, c t 226
Sect. Pardalopetalum         
dianthum 26 2 4 28 2 st, i, p, c t 251
haynaldianum 26 4 4 8 2 st, i, p, c t 110
lowii 26 6 4 28 4 st, i, p, c t, st 161
parishii 26 4 4 34 4 st, i, p, c t 189
Sect. Barbata         
acmodontum 38 2 4 4 0 i t 169
curtisii 36 2 2 2 0 i t 164
dayanum 36 2 4 6 0 i, p t 169
hennisianum 34 2 2 6 0 i t 153
purpuratum 40 2 4 8 0 st, i t 138
sangii 38 2 4 18 0 st, i t 118
sukhakulii 40 2 2 13 0 st, i t 151
venustum 40 2 4 8 2 i t 109
wardii 42 2 4 4 0 i t 159
  1. a Minimum numbers of visible 5S rDNA FISH signals, including numbers of both major and visible dispersed sites.
  2. b st, subtelomeric; t, telomeric; i, interstitial; p, pericentromeric; c, centromeric