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Tykes, Toddlers, Teens, and Twins of Robust Mothers: Do the Offspring of Twinning Mothers Share in Their Mother's Robust Phenotype?

机译:泰克斯,蹒跚学步,青少年和健壮母亲的双胞胎:孪生母亲的后代是否分享其母亲的健壮表型?

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摘要

Women who bear twins may possess a robust phenotype compared to non-twinning mothers. We examine mortality patterns for the singleton offspring of mothers of twins compared to the offspring of non-twinning mothers to determine whether they share the hypothesized robust phenotype of their mothers. Using data from the Utah Population Database, we show that both male and female singleton offspring of twinning mothers experience a survival disadvantage prior to age 5, no survival benefit or penalty between ages 5 and 49, andfor males onlya statistically significant survival advantage after age 50. We further examine the survival effects on singletons born before and after a twinset. We observe a survival disadvantage in early life for singleton offspring of twinning mothers born after the twinset for both sexes. In addition, we find a significant survival advantage at older ages in certain categories of male singleton offspringa likely reflection of mortality selection. The findings suggest that while bearing twins may reflect a robust maternal phenotype, the toll of bearing twins may disadvantage subsequent offspring, especially during infancy.
机译:与没有双胞胎的母亲相比,有双胞胎的女性可能拥有强大的表型。我们检查了双胞胎母亲的单胎后代与非双胞胎母亲的后代的死亡率模式,以确定他们是否共享母亲假想的稳健表型。使用来自犹他州人口数据库的数据,我们显示,双胞胎母亲的单身男性和女性后代在5岁之前都经历了生存劣势,在5到49岁之间没有生存优势或惩罚,而对于男性,在50岁之后只有统计学上显着的生存优势我们进一步研究了双胞胎出生前后单胎的存活率。我们观察到在双胞胎之后出生的男女双胞胎母亲的单胎后代在生命早期存在生存不利。此外,我们发现某些类别的男性单身后代在老年时具有显着的生存优势,这可能反映了死亡率的选择。研究结果表明,虽然双胞胎可能反映出强大的母体表型,但双胞胎的死亡率可能不利于其后代,特别是在婴儿期。

著录项

  • 来源
    《Social Biology》 |2018年第2期|102-113|共12页
  • 作者单位

    Univ Utah, Dept Sociol, 390 South 1530 East,Rm 301, Salt Lake City, UT 84112 USA;

    Univ Utah, David Eccles Sch Business, Kem C Gardner Policy Inst, Salt Lake City, UT USA;

    Univ Utah, Nat Hist Museum Utah, Salt Lake City, UT USA;

    Univ Utah, Huntsman Canc Inst, Populat Sci, Salt Lake City, UT USA|Univ Utah, Sch Med, Dept Surg, Salt Lake City, UT USA;

    Univ Utah, Huntsman Canc Inst, Populat Sci, Salt Lake City, UT USA|Univ Utah, Dept Family & Consumer Studies, Salt Lake City, UT USA;

  • 收录信息 美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-18 04:08:43

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