日本へ移殖された淡水魚 2 種の核型

概要

論文の詳細を見る
From the view point of comparative karyology, we have examined chromosomes of various groups of teleostean fishes from Japan. Recently we observed chromosomes of two species of freshwater fishes transplanted into Japan, i.e., Sarotherodon niloticus (Cichlidae) from Africa and Basilichthys bonariensis (Atherinidae) from South America. As far as we know, the diploid chromosome number of S. niloticus was preliminarily reported by JALABERT et al. (1971), but the karyotype of B. bonariensis has not been studied. We describe their karyotypes in this paper. Method of chromosome preparation is the same as that of ARAI (1973). Classification of chromosomes is adopted from LEVAN et al. (1964). Metacentrics and submetacentrics are described as two-arm chromosomes, and subtelocentrics and acrocentrics as one-arm chromosomes. The definition of the new arm number (NAN) is referred to ARAI and NAGAIWA (1976). All the specimens used for the experiments are deposited in the fish collection of the Department of Zoology, National Science Museum, Tokyo.
国立科学博物館の論文
1980-12-22