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Botanical Studies

Table 1 The diploid chromosome numbers and rDNA FISH patterns of Paphiopedilum subgenera/sections

From: Taxonomic placement of Paphiopedilum rungsuriyanum (Cypripedioideae; Orchidaceae) based on morphological, cytological and molecular analyses

Subgenus/section

2n

Number of rDNA sitesa

25S

5S

Subgenus Parvisepalum

26

2–4

2

Subgenus Brachypetalum

26

2

2

Subgenus Paphiopedilum

   

 Section Laosianum

26

2

20

 Section Megastaminodium

26

2

22

 Section Paphiopedilum

26, 30

2

14–21

 Section Coryopedilum

26

2–9

16–32

 Section Pardalopetalum

26

2–6

8–34

 Section Barbata

32–42

2

2–18

 Section Cochlopetalum

30–38

2

20–25

  1. aThe rDNA FISH patterns at subgenus/section-level (except for sections Laosianum and Megastaminodium) published by Lan and Albert (2011)
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