Abstract Although Rallidae is the most diverse family within Gruiformes, there is little information concerning the karyotype of the species in this group. In fact, Gallinula melanops, a species of Rallidae found in Brazil, is among the few species studied cytogenetically, but only with conventional staining and repetitive DNA mapping, showing 2n=80. Thus, in order to understand the karyotypic evolution and phylogeny of this group, the present study aimed to analyze the karyotype of G. melanops by classical and molecular cytogenetics, comparing the results with other species of Gruiformes. The results show that G. melanops has the same chromosome rearrangements as described in Gallinula chloropus (Clade Fulica), including fission of ancestral chromosomes 4 and 5 of Gallus gallus (GGA), beyond the fusion between two of segments resultants of the GGA4/GGA5, also fusions between the chromosomes GGA6/GGA7. Thus, despite the fact that some authors have suggested the inclusion of G. melanops in genus Porphyriops, our molecular cytogenetic results confirm its place in the Gallinula genus.

中文翻译：

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Gallinula melanops (Gruiformes, Rallidae) 的细胞分类学：核型进化和系统发育推断

摘要 虽然禾鸟科是鹤形目中最多样化的科，但关于该科物种的核型的信息却很少。事实上，在巴西发现的一种 Rallidae 物种 Gallinula melanops 是为数不多的通过细胞遗传学研究的物种之一，但仅使用常规染色和重复 DNA 作图，显示 2n = 80。因此，为了了解该类群的核型进化和系统发育，本研究旨在通过经典和分子细胞遗传学分析G. melanops的核型，并将结果与​​其他鹤形目物种进行比较。结果表明 G. melanops 具有与 Gallinula chloropus (Clade Fulica) 中描述的相同的染色体重排，包括 Gallus gallus (GGA) 的祖先染色体 4 和 5 的裂变，除了 GGA4/GGA5 的两个片段之间的融合之外，还有染色体 GGA6/GGA7 之间的融合。因此，尽管一些作者建议将 G. melanops 包含在 Porphyriops 属中，但我们的分子细胞遗传学结果证实了它在 Gallinula 属中的位置。