Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populations
Dermatoglyphic traits have been used to evaluate population structure and microdifferentiation in several populations. For Chibcha-speaking groups of Lower Central America there are few dermatoglyphic studies, but extensive linguistic, anthropological and genetic data support their historical, cultu...
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| Format: | Article |
| Language: | English |
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Vicerractoría Investigación
2009-11-01
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| Series: | Revista de Biología Tropical |
| Subjects: | |
| Online Access: | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442009000500032&lng=en&tlng=en |
| _version_ | 1797701967817998336 |
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| author | Maia Segura-WW Ramiro Barrantes |
| author_facet | Maia Segura-WW Ramiro Barrantes |
| author_sort | Maia Segura-WW Ramiro Barrantes |
| collection | DOAJ |
| description | Dermatoglyphic traits have been used to evaluate population structure and microdifferentiation in several populations. For Chibcha-speaking groups of Lower Central America there are few dermatoglyphic studies, but extensive linguistic, anthropological and genetic data support their historical, cultural and biological relationships. The main objectives of this study were to describe new dermatoglyphic data for six Chibcha- speaking Amerindians of Costa Rica, and to assess the relationships between these and other Amerindian and Eskimo groups, at different levels of population differentiation by means of multivariate analyses of quantitative traits. Sexual (2 =227.22, df=33, p<0.01),, and bimanual (2 =554.45, df=33, p<0.01) differences were both significant for the overall population, as has been reported previously. Remarkably, higher frequencies of arches, lower frequencies of whorls and lower means of total ridge counts were observed in the tribes analyzed compared with other American indians. At the lowest level of population differentiation, two Cabecar subpopulations (Aatlantic and Chirripo) were compared and no significant differences were found (FF=0.001, p=0.72),, suggesting that dermatoglyphic variation might not reflect known genetic divergence at this level of association. Comparisons within the Chibchan dataset using Principal Components Analysis (PPCA) placed the Huetar and the Cabecar in close proximity, and separated the Guatuso and the Guaymi. Additionally, the Chibchan tribes, although showing nearer proximity to Non-Andean South American groups, can be separated from other Amerindian and Eskimo populations, confirming previous results based on extensive genetic surveys and linguistic analyses that have demonstrated the existence of a Chibchan cluster within a larger South American phylogenetic group. The results obtained support the use of dermatoglyphics to assess interpopulation affinities, even at the level of tribes. Rev. Biol. Trop. 57 (SSuppl. 1): 357-369. Epub 2009 November 30. |
| first_indexed | 2024-03-12T04:43:20Z |
| format | Article |
| id | doaj.art-d3d2a6b0a2914206838e70210d8fea84 |
| institution | Directory Open Access Journal |
| issn | 0034-7744 |
| language | English |
| last_indexed | 2024-03-12T04:43:20Z |
| publishDate | 2009-11-01 |
| publisher | Vicerractoría Investigación |
| record_format | Article |
| series | Revista de Biología Tropical |
| spelling | doaj.art-d3d2a6b0a2914206838e70210d8fea842023-09-03T09:31:25ZengVicerractoría InvestigaciónRevista de Biología Tropical0034-77442009-11-0157suppl 1357369S0034-77442009000500032Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populationsMaia Segura-WW Ramiro BarrantesDermatoglyphic traits have been used to evaluate population structure and microdifferentiation in several populations. For Chibcha-speaking groups of Lower Central America there are few dermatoglyphic studies, but extensive linguistic, anthropological and genetic data support their historical, cultural and biological relationships. The main objectives of this study were to describe new dermatoglyphic data for six Chibcha- speaking Amerindians of Costa Rica, and to assess the relationships between these and other Amerindian and Eskimo groups, at different levels of population differentiation by means of multivariate analyses of quantitative traits. Sexual (2 =227.22, df=33, p<0.01),, and bimanual (2 =554.45, df=33, p<0.01) differences were both significant for the overall population, as has been reported previously. Remarkably, higher frequencies of arches, lower frequencies of whorls and lower means of total ridge counts were observed in the tribes analyzed compared with other American indians. At the lowest level of population differentiation, two Cabecar subpopulations (Aatlantic and Chirripo) were compared and no significant differences were found (FF=0.001, p=0.72),, suggesting that dermatoglyphic variation might not reflect known genetic divergence at this level of association. Comparisons within the Chibchan dataset using Principal Components Analysis (PPCA) placed the Huetar and the Cabecar in close proximity, and separated the Guatuso and the Guaymi. Additionally, the Chibchan tribes, although showing nearer proximity to Non-Andean South American groups, can be separated from other Amerindian and Eskimo populations, confirming previous results based on extensive genetic surveys and linguistic analyses that have demonstrated the existence of a Chibchan cluster within a larger South American phylogenetic group. The results obtained support the use of dermatoglyphics to assess interpopulation affinities, even at the level of tribes. Rev. Biol. Trop. 57 (SSuppl. 1): 357-369. Epub 2009 November 30.http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442009000500032&lng=en&tlng=endermatoglifosamerindios chibchaafinidades genéticasPCACosta Rica |
| spellingShingle | Maia Segura-WW Ramiro Barrantes Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populations Revista de Biología Tropical dermatoglifos amerindios chibcha afinidades genéticas PCA Costa Rica |
| title | Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populations |
| title_full | Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populations |
| title_fullStr | Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populations |
| title_full_unstemmed | Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populations |
| title_short | Dermatoglyphic traits of six Chibcha-speaking Amerindians of Costa Rica, and an assessment of the genetic affinities among populations |
| title_sort | dermatoglyphic traits of six chibcha speaking amerindians of costa rica and an assessment of the genetic affinities among populations |
| topic | dermatoglifos amerindios chibcha afinidades genéticas PCA Costa Rica |
| url | http://www.scielo.sa.cr/scielo.php?script=sci_arttext&pid=S0034-77442009000500032&lng=en&tlng=en |
| work_keys_str_mv | AT maiasegurawwramirobarrantes dermatoglyphictraitsofsixchibchaspeakingamerindiansofcostaricaandanassessmentofthegeneticaffinitiesamongpopulations |