Fig. 1

Intraspecific genetic polymorphisms of elytral colour patterns in H. axyridis. a Highly diverse elytral colour patterns of H. ayridis. b Four major alleles of the elytral colour patterns. hC, conspicua; hSp, spectabilis; hA, axyridis; h, succinea. c An example of inheritance of elytral colour forms. When hC/hC and h/h are crossed (P), all F1 progenies show the colour pattern of hC/h. Note the small black spots within the red spots in the F1 progeny. When the F1 heterozygotes are sibcrossed, F2 progeny shows three phenotypes (hC/hC, hC/h and h/h) at the 1:2:1 ratio predicted for Mendelian segregation of a single locus. Inheritance of any combination of colour patterns follows this segregation pattern. Images in Fig. 1a are used under license from Insect DNA Research Society Japan (newsletter, vol. 13, September 2010). All rights reserved