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Table 1 Species, locality, number of males and females (M/F), diploid numbers and chromosomal positions of multigene families in grasshoppers from the Chlorus , Eurotettix and Dichromatos genera studied in this paper

From: Tracking the evolution of sex chromosome systems in Melanoplinae grasshoppers through chromosomal mapping of repetitive DNA sequences

Species

Locality

Number of individuals (M/F)

2n

18S rDNA

H3 histone gene

5S rDNA

U1 snDNA

U2 snDNA

Ch. vittatus

Parque Nacional Ybycuí (Paraguay)

15/2

♂23/X0

3 pc; 6 d

7 i

3 i; 4 d; 6 i

4 d

1 i; 2 i; 9 i

♀24/XX

Ch. chquitensis

Corumba (Brazil)

9/2

♂19/X0

X pc

7 pc

6 i

4 d

1 i; 2 i

♀20/XX

E. brevicerci

Botucatu (Brazil)

15/9

♂23/X0

X pc; 3 pc

7 pr

3 i

4 d

1 i; 9 pc*

♀24/XX

E. minor

Paraguarí (Paraguay)

16/4

♂22/XY

3 pc

5 d

3 pc; 5 pr; XR i

4 d; XR i;Y i

1 i; 2 i

♀22/XX

Atyra (Paraguay)

2/0

      

Altos (Paraguay)

1/0

      

Parque Nacional Ybycuí (Paraguay)

10/1

      

Ybycuí (Paraguay)

7/0

      

D. lilloanus

Reserva Provincial Yaguaroundí (Argentina) Eldorado (Argentina)

30/35

♂21/X1X2Y

X1 pc; 5 pr

1-9 pc; X1 pc; X2 pc

3 i; YL pr, i, d; YR pr

2 i

1 i; 6 pr; YL pr

0/2

♀22/X1X1X2X2

D. schrottkyi

Eldorado (Argentina)

2/4

♂21/X1X2Y

X1 pc; 4 pr

5 pr

2 i; YL i; YR pr, i

3 d

1 i; 5 pr *

♀22/X1X1X2X2

  1. pc=pericentromeric; pr=proximal; i=intersticial; d=distal. * indicate the occurrence of heteromorphism.