Sousa M G, Silva M C, Duarte A F, Azevêdo E S
Hospital Universitário Prof. Edgard Santos, Departamento de Medicina Preventiva, Universidade Federal de Bahia, Brazil.
Gene Geogr. 1991 Apr-Aug;5(1-2):33-7.
Electrophoretic polymorphism of delta-aminolevulinate dehydrase (ALAD) was studied on 519 individuals from Bahia, Brazil. Subjective assessment of Black ancestries carried out in a five point visual scale (White, Light Mulatto, Medium Mulatto, Dark Mulatto and Black) allowed to show that the ALAD*2 allele frequency decreases from 8% in Whites to 0% in Blacks. These findings agree with previous reports of ALAD in Africans, American Indians and Spanish. The powerful peculiarity of the ALAD system in assessing racial admixture is stressed.
对来自巴西巴伊亚州的519名个体进行了δ-氨基乙酰丙酸脱水酶（ALAD）的电泳多态性研究。通过五点视觉量表（白人、浅混血儿、中等混血儿、深混血儿和黑人）对黑人血统进行主观评估，结果显示ALAD*2等位基因频率从白人中的8%降至黑人中的0%。这些发现与之前关于非洲人、美洲印第安人和西班牙人中ALAD的报道一致。强调了ALAD系统在评估种族混合方面的强大独特性。
