Blood genetic systems in four Amazonian tribes

Salzano, Francisco M.; Black, Francis L.; Callegari-Jacques, Sídia M.; Santos, Sidney Emanuel Batista dos; Weimer, Tânia A.; Mestriner, Moacyr Antonio; Kubo, Rumi Regina; Pandey, Janardan P.; Hutz, Mara Helena

doi:10.1002/ajpa.1330850107

Cited by 21 publications

(11 citation statements)

References 11 publications

(3 reference statements)

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“…One individual was GM 1,17 13, a common phenotype of the Mongoloid race. The distribution of KM allotypes was similar to other South American Indian tribes (Salzano et al , 1991; J. P. Pandey and E L. Black, unpublished observations), with the exception of Huaorani (see Discussion). Of the Huaorani studied by other researchers (Larrick et al 1985), 2% have been reported to be KM1 positive, compared with 61% of the Cayapa (P < 0.0001, )~2 = 35.8).…”

Section: Resultssupporting

confidence: 63%

Immumoglobulin allotypes in Ecuadorian Cayapa Indians

et al. 1994

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Indigenous Indian groups comprise approximately 20% of Ecuador's population, the third largest percentage in all of Central or South America, yet immunogenetic data on these groups are lacking in the literature. In the course of population migration studies, sera collected from 65 Ecuadorians living in the northern province of Esmeraldas were typed for six GM and two KM markers. The study population consisted of 47 Cayapa Indians and 18 blacks of African origin, descendants of slaves imported into the area during the seventeenth century. The Cayapa demonstrated three GM phenotypes, two of which are common to other South American Indian tribes. The frequency of KM1 positive Cayapa Indians (63%) is similar to other South American Indian tribes, but is significantly greater than the Huaorani of eastern Ecuador (2%), the only other Ecuadorian Indian group for whom limited immunoglobulin allotype data are available (chi 2 = 35.8, P < 0.0001).

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Section: Resultssupporting

confidence: 63%

Immumoglobulin allotypes in Ecuadorian Cayapa Indians

et al. 1994

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“…At that time Brazil had about five million inhabitants; . Recently, genetic studies of extant Brazilian Indians have been performed at the protein (Salzano and Callegari-Jacques, 1988;Salzano et al, 1991;Callegari-Jacques et al, 1994Cavalli-Sforza et al, 1994;Salzano et al, 1997), nuclear DNA (Guerreiro et al, 1992;Petzl-Erler and McDevitt, 1994;Bevilaqua et al, 1995;Heidrich et al, 1995;Pena et al, 1995;Santos et al, 1996;Zago et al, 1996;, and mitochondrial DNA Santos et al, 1996;Ward et al, 1996;Bonatto and Salzano, 1997) levels. The first Africans were introduced in Brazil about three decades after the arrival of European colonizers, and during the Colonial slave trade period about six million of them were forced to migrate to this country .…”

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confidence: 99%

Genetic variability in two Brazilian ethnic groups: A comparison of mitochondrial and protein data

Bortolini

Salzano

Zago

et al. 1997

Am. J. Phys. Anthropol.

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Sequence data from the first hypervariable segment of the mitochondrial DNA control region of 124 subjects belonging to three African-Brazilian and three Brazilian Indian populations were compared with information related to 12 protein genetic loci from 601 persons living in the same localities. There is high diversity among the mtDNA sites, and the most variable in one ethnic group are not the most variable in the other. No differences in gene diversity between populations within ethnic groups were observed, but the Indians showed a reduced variability. Much more interpopulation variation was observed in the mtDNA data than in the protein set. The relationships obtained for the six populations, however, are the same regardless whether mtDNA or protein loci are considered. African-Brazilians from Porto Alegre and Salvador, situated 3,000 km apart, are more similar to each other than both are to Paredão, despite the geographical proximity between Porto Alegre and Paredão, which are just 50 km apart. The tree topology in relation to the three Indians groups, on the other hand, is that expected when languages, culture, and geography are considered.

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“…The Urubu-Kaapor and Parakan~ speak languages of the same stock and are closer geographically to each other than to the PacMs Novos, who speak a very distinct language. These relationships, however, were not reflected in the genetic distances separating these populations, as calculated using 60 alleles of 20 genetic systems; Pacafis Novos--Urubu-Kaapor, 0.20; Pacafis Novos --Parakan~, 0.49; Parakan~--Urubu-Kaapor, 0.55 (Salzano et al, 1990). In the ORM1 system the Urubu-Kaapor are more similar to the Paca~s Novos than to the Parakan~, while for AHSG the Urubu-Kaapor occupy an almost equidistant position in relation to the other two tribes.…”

Section: Discussionmentioning

confidence: 91%

Isoelectric focusing studies in Brazilian Indians —uncovering variation of ORM, AHSG and IF—

et al. 1990

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SummaryAllele frequencies for the orosomucoid 1 (ORM1), orosomucoid 2 (ORM2), alpha-2-HS-glycoprotein (AHSG) and complement component I (IF) loci were studied in 393 individuals of three Brazilian Indian tribes. In the ORM1 locus only two alleles were observed among the Urubu-Kaapor, while five were found among the Pacafis Novos. The frequency of ORMI*I was similar in these two tribes (0.734 and 0.715, respectively) but departed more markedly among the Parakan~ (0.870). Variation for ORM2 locus was found among the Pacafis Novos only, with ORM2*3 being observed in just three individuals. A new variant (AHSG*PN) was found in the AHSG system. Frequency for AHSG*I was unexpectedly low in the three tribes, especially, among the Paca/ts Novos, where the prevalence (0.145) is the lowest considering other data reported thus far. For IF locus, variability was also restricted to only one trible (Urubu-Kaapor) and attributed to a new polymorphic allele, IF*A3.

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Blood genetic systems in four Amazonian tribes

Cited by 21 publications

References 11 publications

Immumoglobulin allotypes in Ecuadorian Cayapa Indians

Immumoglobulin allotypes in Ecuadorian Cayapa Indians

Genetic variability in two Brazilian ethnic groups: A comparison of mitochondrial and protein data

Isoelectric focusing studies in Brazilian Indians —uncovering variation of ORM, AHSG and IF—

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