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

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

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
Ch. vittatus	Parque Nacional Ybycuí (Paraguay)	15/2	♀24/XX	3 pc; 6 d	7 i	3 i; 4 d; 6 i	4 d	1 i; 2 i; 9 i
Ch. chquitensis	Corumba (Brazil)	9/2	♂19/X0	X pc	7 pc	6 i	4 d	1 i; 2 i
Ch. chquitensis	Corumba (Brazil)	9/2	♀20/XX	X pc	7 pc	6 i	4 d	1 i; 2 i
E. brevicerci	Botucatu (Brazil)	15/9	♂23/X0	X pc; 3 pc	7 pr	3 i	4 d	1 i; 9 pc*
E. brevicerci	Botucatu (Brazil)	15/9	♀24/XX	X pc; 3 pc	7 pr	3 i	4 d	1 i; 9 pc*
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
	Paraguarí (Paraguay)	16/4	♀22/XX	3 pc	5 d	3 pc; 5 pr; XR i	4 d; XR i;Y i	1 i; 2 i
	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
D. lilloanus		0/2	♀22/X₁X₁X₂X₂	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
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 *
D. schrottkyi	Eldorado (Argentina)	2/4	♀22/X₁X₁X₂X₂	X₁ pc; 4 pr	5 pr	2 i; YL i; YR pr, i	3 d	1 i; 5 pr *

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

ISSN: 2730-7182