Kaftanovskaya H M, Serov O L
Institute of Cytology and Genetics, Russian Academy of Sciences, Siberian Department, Novosibirsk.
J Hered. 1994 Sep-Oct;85(5):395-400. doi: 10.1093/oxfordjournals.jhered.a111485.
We compared in detail the GTG-banding patterns of the chromosomes of cattle, sheep, and goat. Minor differences were revealed between the patterns of cattle on the one hand, and sheep/goat chromosomes on the other. These differences concerned mainly the pericentromeric regions of autosomes. Based on comparative data, we suggest how the contemporary cattle X chromosome might have arisen from the ancestral goat type as a result of rearrangements. No differences were found between the G-banded chromosomes of goat and sheep. Also, ideograms of the prometaphase GTG-banded chromosomes of cattle are given with descriptions of the chromosomes thought previously to be difficult to identify.
我们详细比较了牛、绵羊和山羊染色体的GTG带型。一方面，牛的染色体带型与绵羊/山羊的染色体带型之间存在细微差异。这些差异主要涉及常染色体的着丝粒周围区域。基于比较数据，我们提出了当代牛的X染色体可能是如何通过重排从祖先山羊型染色体演变而来的。山羊和绵羊的G带染色体之间未发现差异。此外，还给出了牛有丝分裂前期GTG带型染色体的 ideogram，并对以前认为难以识别的染色体进行了描述。
