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Table 1 Characteristics of the chromosomal distributions of 5S rDNA sites in diploid genomes of cichlids*

From: Evolutionary dynamics of rRNA gene clusters in cichlid fish

 

African

Neotropical

Asiatic

Total

Number of genomes analyzed

24**

22

01

47**

Number of sites

74

50

02

126

Average per genome

3.1

2.3

2.0

2.7

Telo/acrocentric (t/a)

42

42

02

86

Meta/submetacentric (m/sm)

32

08

00

40

Proximal (p)

50

04

00

54

Interstitial (i)

20

38

02

60

Terminal (t)

04

08

00

12

Long arm (L)

20

42

02

64

Short arm (S)

08

08

00

16

Closely associated to centromeric regions (CC)

46

00

00

46

  1. *The species Astatotilapia latifasciata and Laetacara dorsigera were excluded due to their atypical number of 5S rDNA clusters; **Includes the polymorphic conditions detected.