The aim of this study is to produce G-banded karyotypes of three dolphin species, Tursiops truncatus Montagu, 1821, Tursiops australisCharlton-Robb et al., 2011, and Grampus griseus Cuvier, 1812, and to determine if any differences between the species can be observed. Monolayer skin cultures were established and processed for chromosome study by trypsin banding. The results indicate that the three species here investigated have the same diploid number (2n = 44) and very similar gross chromosome morphology, however G-banding allows distinction between each species. Chromosome 1 in G. griseus is significantly different from the other 2 species, and chromosome 2 in T. australis is subtly different from the other 2 species. This result is of potential significance in taxonomic studies, and can provide an unequivocal answer in the assessment of suspected hybrids between these species.

中文翻译：

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对三种海豚的染色体核型的比较分析– Tursiops truncatus Montagu，1821年，Tursiops australis Charlton-Robb等人，2011年，Grampus griseus Cuvier，1812年

这项研究的目的是产生三种海豚物种G带状核型，Tursiops truncatus Montagu，1821年； Tursiops australisCharlton-Robb等人，2011年； Grampus griseus Cuvier，1812年，并确定这些物种之间是否存在任何差异被观察。建立单层皮肤培养物并通过胰蛋白酶条带处理以进行染色体研究。结果表明，这里研究的三个物种具有相同的二倍体数（2n = 44）和非常相似的总染色体形态，但是G带可区分每个物种。G. griseus中的1号染色体与其他2个物种显着不同，而T. austtralis中的2号染色体与其他2个物种也有细微差别。该结果在分类学研究中具有潜在的意义，