Heritability of food preferences in young children
Heritability of food preferences in young children
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DOI：
10.1016/j.physbeh.2006.04.016
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发表时间：
2006-07-30
影响因子：
2.9
通讯作者：
Wardle, Jane
中科院分区：
文献类型：
--
作者：
Breen, Fiona M.;Plomin, Robert;Wardle, Jane
背景资料：人们对口味偏好是可遗传特征的观点一直很感兴趣，但很少有双胞胎研究发现有明显的遗传成分。样本量小和食物的特殊选择可能导致了阴性结果。我们假设，使用一个更大的双胞胎样本和经验分组的食物类型，将提供更有力的证据，遗传性的食物preferences.Objective：我们研究了遗传性的偏好为四个食物组的样本中的年轻双胞胎。设计：我们对214名同性双胞胎母亲进行了一份包含95种食物的食物偏好问卷调查（103个单卵和111个双卵对）年龄为4 - 5岁。有18种食物被排除在外，因为只有不到25%的儿童尝试过。食物被分为“蔬菜”，“水果”，“甜点”和“肉和鱼”的偏好数据的因素分析的基础上。遗传分析进行了平均喜欢在这四个群体，使用模型拟合techniques.Results：在所有77种食物，MZ相关性高于DZ相关性为72个，具有较高的平均MZ相关性（r=0.76）比DZ相关性（r=0.56）。使用模型拟合技术的因素得分，显着的遗传力估计，获得所有四个食物组。甜食的遗传力适中（0.20），蔬菜（0.37）和水果（0.51）的遗传力适中，蛋白质食物的遗传力较高（0.78）。共享的环境影响是强大的甜点，水果和蔬菜，而非共享的环境影响是低的所有四个food groups.Conclusions：这些结果提供了有力的证据，适度的遗传性的食物偏好时，使用的衍生食品分组。(c)2006爱思唯尔公司All rights reserved.
Background: There is persisting interest in the idea that taste preferences are heritable characteristics, but few twin studies have found evidence for a significant genetic component. Small sample sizes and idiosyncratic selection of foods may have contributed to the negative results. We hypothesized that using a larger twin sample and empirical groupings of food types, would give stronger evidence for the heritability of food preferences.Objective: We examined the heritability of preferences for four food groups in a sample of young twins.Design: We administered a food preference questionnaire with 95 foods to 214 mothers of same-sex twin pairs (103 monozygotic and I I I dizygotic pairs) aged 4 to5. 18 foods were excluded because they had been tried by fewer than 25% of the children. Foods were grouped into 'Vegetables', 'Fruits', 'Desserts' and 'Meat and Fish' on the basis of a factor analysis of the preference data. Genetic analyses were carried out on mean liking across these four groups, using model fitting techniques.Results: Over all 77 foods, MZ correlations were higher than DZ correlations for 72 of them, with a higher mean MZ correlation (r=0.76) than DZ correlation (r=0.56). Using model fitting techniques with the factor scores, significant heritability estimates were obtained for all four food groups. Heritability was modest for dessert foods (0.20), moderate for vegetables (0.37) and fruits (0.51), and high for liking for protein foods (0.78). Shared environmental effects were strong for desserts, fruits and vegetables, while non-shared environmental influences were low for all four food groups.Conclusions: These results provide strong evidence for modest heritability of food preferences when using empirically-derived groupings of foods. (c) 2006 Elsevier Inc. All rights reserved.