日本産ドジョウ科魚類の赤血球径と倍数性

概要

論文の詳細を見る
The erythrocyte size of cobitid fishes inhabiting Japan was examined in relation to polyploidy. The major axis of erythrocyte ranged from 11.11 to 12.65μm in the following phylogenetically diploid species: Misgurnus anguillicaudatus (dojo), Barbstula toni (fuku-dojo) Lefua nikkonis (ezo-hotoke), Cobitis takatsuensis (ishi-dojo) and Niwaella delicata (ajime-dojo). However, erythrocytes of Lefua echigoni (hotoke-dojo) showed the major axis as short as 8.71μm.In Cobitis biwae (shima-dojo), Cobitis taenia taenia (tairiku shima-dojo), and Cobitis taenia striata (sujishima-dojo) the major axis of erythrocyte of the diploids was measured to be 11.91-12.88μm, whereas that of the tetraploid (or the specimen whose chromosome number is somewhat smaller than that of the tetraploid) was 14.35-15.98μm.A possibility was suggested that the erythrocyte size is associated with not only chromosome number but also with some unknown factors.
社団法人日本水産学会の論文