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The Heritability of Type D Personality by an Extended Twin-Pedigree Analysis in the Netherlands Twin Register
Behavior Genetics ( IF 2.6 ) Pub Date : 2020-10-16 , DOI: 10.1007/s10519-020-10023-x
Ruifang Li-Gao 1, 2, 3 , Dorret I Boomsma 2 , Eco J C de Geus 2 , Johan Denollet 1 , Nina Kupper 1
Affiliation  

Type D (Distressed) personality combines negative affectivity (NA) and social inhibition (SI) and is associated with an increased risk of cardiovascular disease. We aimed to (1) validate a new proxy based on the Achenbach System of Empirically Based Assessment (ASEBA) for Type D personality and its NA and SI subcomponents and (2) estimate the heritability of the Type D proxy in an extended twin-pedigree design in the Netherlands Twin Register (NTR). Proxies for the dichotomous Type D classification, and continuous NA, SI, and NAxSI (the continuous measure of Type D) scales were created based on 12 ASEBA items for 30,433 NTR participants (16,449 twins and 13,984 relatives from 11,106 pedigrees) and sources of variation were analyzed in the ‘Mendel’ software package. We estimated additive and non-additive genetic variance components, shared household and unique environmental variance components and ran bivariate models to estimate the genetic and non-genetic covariance between NA and SI. The Type D proxy showed good reliability and construct validity. The best fitting genetic model included additive and non-additive genetic effects with broad-sense heritabilities for NA, SI and NAxSI estimated at 49%, 50% and 49%, respectively. Household effects showed small contributions (4–9%) to the total phenotypic variation. The genetic correlation between NA and SI was .66 (reflecting both additive and non-additive genetic components). Thus, Type D personality and its NA and SI subcomponents are heritable, with a shared genetic basis for the two subcomponents.



中文翻译:

在荷兰双胞胎登记册中通过扩展双系谱分析 D 型人格的遗传力

D型(苦恼)人格结合了负面情感 (NA) 和社会抑制 (SI),并与心血管疾病风险增加有关。我们的目标是 (1) 验证基于 Achenbach 经验评估系统 (ASEBA) 的 D 型人格及其 NA 和 SI 子成分的新代理,以及 (2) 估计 D 型代理在扩展双系谱中的遗传力设计在荷兰双注册 (NTR)。基于 30,433 名 NTR 参与者(来自 11,106 个家系的 16,449 对双胞胎和 13,984 名亲属)的 12 个 ASEBA 项目和变异来源,创建了二分 D 型分类和连续 NA、SI 和 NAxSI(D 型的连续测量)量表的代理在“孟德尔”软件包中进行了分析。我们估计了加性和非加性遗传方差分量,共享家庭和独特的环境方差分量,并运行双变量模型来估计 NA 和 SI 之间的遗传和非遗传协方差。D 型代理具有良好的信度和结构效度。最适合的遗传模型包括加性和非加性遗传效应,NA、SI 和 NAxSI 的广义遗传力估计分别为 49%、50% 和 49%。家庭效应对总表型变异的贡献很小(4-9%)。NA 和 SI 之间的遗传相关性为 0.66(反映加性和非加性遗传成分)。因此,D 型人格及其 NA 和 SI 子成分是可遗传的,这两个子成分具有共享的遗传基础。D 型代理具有良好的信度和结构效度。最适合的遗传模型包括加性和非加性遗传效应,NA、SI 和 NAxSI 的广义遗传力估计分别为 49%、50% 和 49%。家庭效应对总表型变异的贡献很小(4-9%)。NA 和 SI 之间的遗传相关性为 0.66(反映加性和非加性遗传成分)。因此,D 型人格及其 NA 和 SI 子成分是可遗传的,这两个子成分具有共享的遗传基础。D 型代理具有良好的信度和结构效度。最适合的遗传模型包括加性和非加性遗传效应,NA、SI 和 NAxSI 的广义遗传力估计分别为 49%、50% 和 49%。家庭效应对总表型变异的贡献很小(4-9%)。NA 和 SI 之间的遗传相关性为 0.66(反映加性和非加性遗传成分)。因此,D 型人格及其 NA 和 SI 子成分是可遗传的,这两个子成分具有共享的遗传基础。家庭效应对总表型变异的贡献很小(4-9%)。NA 和 SI 之间的遗传相关性为 0.66(反映加性和非加性遗传成分)。因此,D 型人格及其 NA 和 SI 子成分是可遗传的,这两个子成分具有共享的遗传基础。家庭效应对总表型变异的贡献很小(4-9%)。NA 和 SI 之间的遗传相关性为 0.66(反映加性和非加性遗传成分)。因此,D 型人格及其 NA 和 SI 子成分是可遗传的,这两个子成分具有共享的遗传基础。

更新日期:2020-10-17
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