Blood Group Antigen Studies of Four Chibchan Tribes¹

Estudio genético multiloci en la población colombiana. II. Distribución del complejo CcDdEe del grupo sanguíneo Rh

“…casos en que se ha encontrado su presencia es Así mismo, las frecuencias bajas del fenotipo atribuida a la mezcla con individuos de la raza Ccddee en las regiones (Cundinamarca), blanca Y de la raza negra (4,10,11), para las (Boyacá) y (Meta, Caquetá y Casanare) deja cuales se señalan valores de 38,4 Y 11,84% ver la mayor incidencia indígena, ya que la respectivamente (5). De otro lado, la región 4 gameta Cde no se ha encontrado en las tribus (Caldas, Quindío y Risaralda) presentó la fre-indígenaSSUdamericanas (4, 11, 16), cuencia más alta para el fenotipo ccddee, mostrando así la mayor incidencia de la raza La presencia del fenotipo CCD-EE en la región blanca en esta región, si bien se tiene en 7, no es un hecho sorprendente si se tiene en cuenta que en algunas poblaciones españolas cuenta que la mayoría de las tribus indígenas la gameta cde alcanza valores hasta del sudamericanas localizadas al oriente de la cor-53,13% (12).…”

Haemoglobin Types and Blood Serum Factors in Colombian Indians

“…Layrisse et al (1961) found in the lea a phenotype of the Rh system described as DcceVf and additional differences in relation to the frequency of the S, P, Jk, and Diego groups, in spite of both belonging to the same Chibcha linguistic phylum. This, therefore, indicates the necessity of continuing the search for the agents causing these different genetic frequencies, as the possibility exists of either an erroneous classification of the origin of these populations (Layrisse et al, 1963) or that selective forces, unknown until now, have acted producing a balance compatible with environmental circumstances in these two tribes living under very different conditions. The absence of abnormal haemoglobins in these two Colombian tribes confirms the findings up to now in other South American tribes (Arends, 1963), which suggests that if any abnormal haemoglobin exists it must be in a very low proportion.…”

“…history, blood groups, and physical appearance indicate that they may have mixed with Caucasoid and Negroid (Layrisse et al, 1963). The samples from Paez Indians were obtained from settlements near the Belalcazar region (Huila Province) in the south of Colombia.…”

Polymorphism of Serum Proteins (C3, BF, HP and TF) of Six Populations in Colombia

“…Up to now, only blood group antigens in Chibcha tribes, some genetic markers in Amerindian populations, red-cell en zymes (glutamic-pyruvate transaminase and glyoxalase) and serum proteins [com plement component 3 (C3), factor B (BF), C4] in an urban population of Bogota and five village populations of the Colombian Andes have been reported [Layrisse et al, 1963;Kirk et al, 1974;Lanchbury et al, 1984;Bernal et al, 1985]. As part of our ongoing studies on the genetic variability in Colombian populations, this paper re ports gene frequencies in four serum pro tein polymorphic systems in six selected populations.…”