核酸序列分析证实2株有93.4%的同源性，种遗传性上与希腊种最为相近。
Nucleotide sequence analysis identified 2 strains with 93.4% identity, phylogenetically most closely related to the Greece1 isolate.
序列同源性分析表明，绵羊ttf - 1基因的核酸和蛋白质序列在不同哺乳动物之间有很高的同源性，分子在进化上均相当保守。
Homogeneous analysis demonstrated that nucleotide and amino acids sequences of sheep TTF-1 gene between different species mammal are comparatively conservative.
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