Table 1 Geographic source, number of individuals of P. sapporensis analyzed in this study and summary of chromosomal data.

From: Cytogenetic markers reveal a reinforcement of variation in the tension zone between chromosome races in the brachypterous grasshopper Podisma sapporensis Shir. on Hokkaido Island

Locality number (no. indiv.)Locality nameLatitude and longitudeSex type X- morphologyChromosome raceFISHPericentric inversion C-bandingM3 Hetero- zygotesB typeFigs
lat(hh) lat(mm)long(hh) long(mm)Heterozy- goteshomozygotes + X (X0), neo-X (neo-XY), Bheterozygotesstructural homozy- gote
X0-1(1)Nishi-Okoppe-144
20.491
142
49.694
X0
X a thick
X0/XX-Standard 4, X  yes 4c
X0-1(2)X0
X a thin
X0/XX-Standard 4, X  yes 2a,a′; 4c; 6a
X0-1(4)X0
X sa-h
X0/XX-Standard 4, 6/7, X e-6/7   
X0-1(5)X0
X a thick
X0/XX-Standard6/74, Xe-6/7  B5iso2b,b′; 4c; 5b
X0-2(4)Nishi-Okoppe-244
20.262
142
49.269
X0
X sa-h
X0/XX-Standard 4, X     
X0-2(9)X0
X a thin
X0/XX-Standard4, 6, 7,9Xe-4, 6, 7, 9 yesB5iso2c,c′
XY-1(6)Nishi-Okoppe-344
18.04
142
58.221
XYXY/XX-Standard 4, neo-X     
XY-2(3)Nishi-Okoppe-444
19.43
142
56.86
XYXY/XX-Standard 4, neo-X  yes 2d,d′; 4f; 5e
XY-3(11)Nishi-Okoppe-544
19
142
50
XYXY/XX-Standard 4, neo-X  yes  
X0-3(5)Kamikawa-143.833142.767X0
X a thick
X0/XX-Naganuma/Yotei1, 24, 9, Xe-1, 2, 5e-4, h-7  2e,e′; 4a,a′,d
X0-3(5)4Xe-4    
XY-4(3)Kamikawa-243.583143.117XYXY/XX-Tanno/Oketo5, 6neo-Xh-1, 2, 5, 6e-4yes  
XY-4(3)5/6neo-Xh-1, 5/6, e-4 yes 2f,f′
XY-5(2)Kamikawa-343
38.815
143
3.238
XYXY/XX-Tanno/Oketo5, 6neo-Xe-2, 4, 5, 6e-1   
XY-5(3)5, 64, neo-Xe-1, 2, 5, h-6e-4yes  
X0-4(1)Mikuni Pass-143
34.762
143
7.772
X0
X a thin
X0/XX-Naganuma6 e-2, 7, h-3e-3   
X0-4(11)6e-2, 3, 5, 6    
X0-4(12)6e-2, 6, 8, e+h-4e-3  2g,g′; 5a; 6b
X0-4(16)6e-1, 2, 6e-3   
XY-6(3)Mikuni Pass-243
35.687
143
7.587
XYXY/XX-Tanno/Oketo6, 7neo-Xe-4, 6, h-7e-1, 2, 5yes  
XY-6(12)4, 7neo-Xe-1, 2, 4, h-7e-3, 5 B5iso 
XY-6(15)6, 7neo-Xe-1, 2, 6, h-7e-3, 5  4b,b′
Co-1(1)Mikuni Pass-343
36.159
143
5.729
X0
X sa-e
X0/XX-Naganuma64, Xe-6e-1, 3, 4  2h,h′; 4e
Co-1(7)XYXY/XX-Tanno/Oketo 4, 5, neo-Xe-1e-2, 4, 5yes  
Co-1(11)46, 5, neo-Xe-1, 2, 3, 4e-5,6  2i,i′; 4g; 6c,d
Co-1(15)4, 6neo-Xe-1, 3, 4, 6e-2, B5iso 
Co-1(18)4, 5neo-Xe-1, 3, 5, 6e-2   
X0-5(5)Mt Teine43.1141.217X0
X a thick
X0/XX-Standard 4, X, B   Bn3a,a′
X0-6(1)Tempoku Pass44
20.028
142
48.597
X0
X sa-h
X0/XX-Standard4, 6/7Xe-6  B5iso 
X0-6(6)6Xe-6    
X0-7(31)Horoka Station43
26.907
143
8.901
X0
X a thin
X0/XX-Standard4, 6, 7Bh-4, 6, 7  Bn3b,b′; 5b
X0-8(5)Shimokawa44
20.145
142
38.618
X0
X thick
X0/XX-Standard 4, X     
X0-8(7)10,114, X, Bh-10, 11  Bn3c,c′
X0-9(6)Kogen-spa43
37.57
142
55.835
X0
X sa-e
X0/XX-Naganuma1, 4, 5/62, Xh-1, 4, 9/10h-2, e-5/6  5c
X0-10(2)near Kogen-spa43
36.986
142
57.643
X0
X sa-e
X0/XX-Naganuma1, 24, Xh-1, 2, e-3   2j,j′
X0-11(1)on the road to Upepe-sanke43
22.125
143
9.77
X0
X sa-h
X0/XX-Naganuma 4, 6, X e-6  5d
X0-12(2)Maoi-spa43
0.933
141
44.525
X0
X sa-h
X0/XX-Naganuma 4, 6/7, Xe-1e-6   
X0-12(6) 4, X, B e-6 Bn3d,d′
XY-7(1)Teshikaga-A43
27.636
144
14.605
XYXY/XX-Standard 5/6, 7, neo-X  yes  
XY-8(4)Maruseppu44
43.733
143
143.25
XYXY/XX-Tanno/Oketo4, 5, 6neo-Xe-2, 3, 4, 5, h-6   5f
XY-9(4)4, 5neo-Xe-1, 2, 4, 5 yes  
XY-10(17)Hakuryu44.083143.4XYXY/XX-Tanno/Oketo 4, neo-Xe-1e-3   
  1. X type: a = acrocentric, thin = C-band restricted to the centromere, thick = C-band occupied the region next to the centromere, sa-e = subacrocentric with euchromatic short arm, sa-h = subacrocentric with heterochromatic short arm, a slash between two numbers indicates imprecise identification of the bivalent, Co-1 = coexistence site (X0/XY).