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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.