Genetic Differentiation between Ecological Two Types of the Japanese Firefly, Hotaria parvula : An Electrophoretic Analysis of Allozymes

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The Japanese firefly, Hotaria parvula, is separated into two types on the basis of body size (large and small type), flash interval of the mate-seeking male and geographic distribution pattern. The degree of genetic differentiation between the two types and between H. parvula and the congeneric species H. tsushimana was examined in 11 populations by allozyme analysis of 13 enzymes. The dendrogram for these populations constructed according to Nei's genetic distance showed that H. parvula was divided into two groups corresponding to small and large types. All the small-type populations were clustered within a slightly differentiated group, while the large type populations were considerably differentiated from one another. The genetic distance between the two types was 0.108, and that between H. parvula (of both types) and H. tsushimana was much higher (0.305) than that within either the large-type or small-type populations of H. parvula. These findings suggested that the small type of H. parvula originated from an ancestor similar to the large type of H. parvula.
社団法人日本動物学会の論文
1993-08-16