Iris texture traits show associations with iris color and genomic ancestry

Ellen E. Quillen; Jenna S. Guiltinan; Sandra Beleza; Jorge Rocha; Rinaldo W. Pereira; Mark D. Shriver

doi:10.1002/ajhb.21183

Iris texture traits show associations with iris color and genomic ancestry

Ellen E. Quillen, Jenna S. Guiltinan, Sandra Beleza, Jorge Rocha, Rinaldo W. Pereira, Mark D. Shriver

Anthropology

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

Objectives: This study seeks to identify associations among genomic biogeographic ancestry (BGA), quantitative iris color, and iris texture traits contributing to population-level variation in these phenotypes. Methods: DNA and iris photographs were collected from 300 individuals across three variably admixed populations (Portugal, Brazil, and Cape Verde). Two raters scored the photos for pigmentation spots, Fuchs' crypts, contraction furrows, and Wolflinn nodes. Iris color was quantified from RGB values. Maximum likelihood estimates of individual BGA were calculated from 176 ancestry informative markers. Results: Pigmentation spots, Fuchs' crypts, contraction furrows, and iris color show significant positive correlation with increasing European BGA. Only contraction furrows are correlated with iris color. Conclusions: The relationship between BGA and iris texture illustrates a genetic contribution to this population-level variation.

Original language	English (US)
Pages (from-to)	567-569
Number of pages	3
Journal	American Journal of Human Biology
Volume	23
Issue number	4
DOIs	https://doi.org/10.1002/ajhb.21183
State	Published - Jul 2011

All Science Journal Classification (ASJC) codes

Anatomy
Ecology, Evolution, Behavior and Systematics
Anthropology
Genetics

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10.1002/ajhb.21183

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abstract = "Objectives: This study seeks to identify associations among genomic biogeographic ancestry (BGA), quantitative iris color, and iris texture traits contributing to population-level variation in these phenotypes. Methods: DNA and iris photographs were collected from 300 individuals across three variably admixed populations (Portugal, Brazil, and Cape Verde). Two raters scored the photos for pigmentation spots, Fuchs' crypts, contraction furrows, and Wolflinn nodes. Iris color was quantified from RGB values. Maximum likelihood estimates of individual BGA were calculated from 176 ancestry informative markers. Results: Pigmentation spots, Fuchs' crypts, contraction furrows, and iris color show significant positive correlation with increasing European BGA. Only contraction furrows are correlated with iris color. Conclusions: The relationship between BGA and iris texture illustrates a genetic contribution to this population-level variation.",

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T1 - Iris texture traits show associations with iris color and genomic ancestry

AU - Quillen, Ellen E.

AU - Guiltinan, Jenna S.

AU - Beleza, Sandra

AU - Rocha, Jorge

AU - Pereira, Rinaldo W.

AU - Shriver, Mark D.

PY - 2011/7

Y1 - 2011/7

N2 - Objectives: This study seeks to identify associations among genomic biogeographic ancestry (BGA), quantitative iris color, and iris texture traits contributing to population-level variation in these phenotypes. Methods: DNA and iris photographs were collected from 300 individuals across three variably admixed populations (Portugal, Brazil, and Cape Verde). Two raters scored the photos for pigmentation spots, Fuchs' crypts, contraction furrows, and Wolflinn nodes. Iris color was quantified from RGB values. Maximum likelihood estimates of individual BGA were calculated from 176 ancestry informative markers. Results: Pigmentation spots, Fuchs' crypts, contraction furrows, and iris color show significant positive correlation with increasing European BGA. Only contraction furrows are correlated with iris color. Conclusions: The relationship between BGA and iris texture illustrates a genetic contribution to this population-level variation.

AB - Objectives: This study seeks to identify associations among genomic biogeographic ancestry (BGA), quantitative iris color, and iris texture traits contributing to population-level variation in these phenotypes. Methods: DNA and iris photographs were collected from 300 individuals across three variably admixed populations (Portugal, Brazil, and Cape Verde). Two raters scored the photos for pigmentation spots, Fuchs' crypts, contraction furrows, and Wolflinn nodes. Iris color was quantified from RGB values. Maximum likelihood estimates of individual BGA were calculated from 176 ancestry informative markers. Results: Pigmentation spots, Fuchs' crypts, contraction furrows, and iris color show significant positive correlation with increasing European BGA. Only contraction furrows are correlated with iris color. Conclusions: The relationship between BGA and iris texture illustrates a genetic contribution to this population-level variation.

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Iris texture traits show associations with iris color and genomic ancestry

Abstract

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