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| Vallinoto,Izaura Maria Vieira Cayres; Vallinoto,Antonio Carlos Rosário; Valente,Cristina Maria Duarte; Guerreiro,João Farias. |
| The allele frequency distributions of three VNTR (D1S80, APOB and D4S43) and three STR (vW1, F13A1 and DYS19) loci were investigated in two Afro-Brazilian populations from the Amazon: Curiau and Pacoval. Exact tests for population differentiation revealed significant differences in allele frequency between populations only for the D1S80 and APOB loci. A statistically significant deviation from the Hardy-Weinberg equilibrium was observed only in the D1S80 locus of the Pacoval sample. A neighbor-joining tree was constructed based on DA genetic distances of allele frequencies in four Afro-Brazilian populations from the Amazon (Pacoval, Curiau, Trombetas, and Cametá), along with those from Congo, Cameroon, Brazilian Amerindians, and Europeans. This analysis... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: DNA polymorphisms; Afro-Brazilians; Hypervariable loci. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300003 |
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| Mousinho-Ribeiro,Rita de Cassia; Pante-de-Sousa,Gabriella; Santos,Eduardo José Melo dos; Guerreiro,João Farias. |
| The distribution of b-globin gene haplotypes was studied in 209 Amerindians from eight tribes of the Brazilian Amazon: Asurini from Xingú, Awá-Guajá, Parakanã, Urubú-Kaapór, Zoé, Kayapó (Xikrin from the Bacajá village), Katuena, and Tiriyó. Nine different haplotypes were found, two of which (n. 11 and 13) had not been previously identified in Brazilian indigenous populations. Haplotype 2 (+ - - - -) was the most common in all groups studied, with frequencies varying from 70% to 100%, followed by haplotype 6 (- + + - +), with frequencies between 7% and 18%. The frequency distribution of the b-globin gene haplotypes in the eighteen Brazilian Amerindian populations studied to date is characterized by a reduced number of haplotypes (average of 3.5) and low... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: DNA polymorphisms; Brazilian Amerindians; Genetic diversity. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572003000300002 |
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| Sarano, Francois; Girardet, Justine; Sarano, Véronique; Vitry, Hugues; Preud'Homme, Axel; Heuzey, René; Garcia-cegarra, Ana M.; Madon, Bénédicte; Delfour, Fabienne; Glotin, Hervé; Adam, Olivier; Jung, Jean-luc. |
| Understanding the organization and dynamics of social groups of marine mammals through the study of kin relationships is particularly challenging. Here, we studied a stable social group of sperm whales off Mauritius, using underwater observations, individual-specific identification, non-invasive sampling and genetic analyses based on mitochondrial sequencing and microsatellite profiling. Twenty-four sperm whales were sampled between 2017 and 2019. All individuals except one adult female shared the same mitochondrial DNA (mtDNA) haplotype—one that is rare in the western Indian Ocean—thus confirming with near certainty the matrilineality of the group. All probable first- and second-degree kin relationships were depicted in the sperm whale social group: 13... |
| Tipo: Text |
Palavras-chave: Sperm whale; Social groups; Kin relationships; DNA polymorphisms. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00687/79958/82884.pdf |
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