Abstract
Genetic recombination between homologous sequences on the human globin gene clusters can lead to the creation of fusion genes. In this study, we report the detection of an α-globin fusion gene by using real-time polymerase chain reaction (qPCR)-based multicolor melting curve analysis (MMCA). The carriers of this fusion gene had a mild α-thalassemia phenotype with a normal hemoglobin (Hb) value and borderline hematological indices. Sequence analysis revealed that the mutant gene was the result of a fusion between the α2 and ψα1 genes. Our results indicate that the MMCA has the ability to detect the fusion gene, which is helpful for genetic counseling in thalassemia prevalent areas.
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