Genetic Influences on Maternal Care

Genetic Influences on Maternal Care
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遗传对孕产妇护理的影响

DOI:
--
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发表时间:
2002
影响因子:
2.9
通讯作者:
J. Cheverud
J. Cheverud
中科院分区:
环境科学与生态学2区
文献类型:
--
作者:
A. Peripato;J. Cheverud

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哺乳动物社会进化的基础是母子关系。这也是间接遗传效应的主要和最重要的例子,在这种情况下,一个个体的遗传变异会影响表型变异。这种关系在哺乳动物中是如此重要,以至于决定新生儿生死的主要因素往往是它们母亲提供的环境。这些环境的差异可能是由于母体基因类型的差异造成的。在我们对两个近亲交配品系LG/J和SM/J的杂交研究中,我们发现母体表现存在非常严重的差异。这些雌性未能养育它们的后代,并表现出异常的母性行为,导致它们丢失幼崽。而不是像在基因敲除的小鼠中那样,这是由于单个基因变异造成的,我们发现了这种特征的复杂遗传基础。基因对母体表现的影响在我们的杂交中完全取决于上下文。它们取决于存在于相同或其他上位性相互作用基因座的等位基因。在这项研究中确定的基因组位置包括候选基因的位置,这些候选基因的敲除显示出类似的异常母体行为。在这项研究中,与母体表现显著相关的行为包括哺乳、筑巢、胎盘吞噬、幼崽梳理和在受到干扰后找回幼崽。
The basis of social evolution in mammals is the mother‐offspring relationship. It is also the primary and most important instance of indirect genetic effects, where genetic variation in one individual affects phenotypic variation among others. This relationship is so important in mammals that often the major factor determining the life or death of newborns is the environment provided by their mother. Variations in these environments can be due to variations in maternal genotypes. In our work with the intercross of two mouse inbred strains, LG/J and SM/J, we uncovered a very severe variation in maternal performance. These females failed to nurture their offspring and showed abnormal maternal behaviors leading to loss of their litter. Rather than this being due to a single gene variant as in knockout mice, we uncovered a complex genetic basis for this trait. The effects of genes on maternal performance are entirely context dependent in our cross. They depend on the alleles present at the same or other epistatically interacting loci. Genomic locations identified in this study include locations of candidate genes whose knockouts displayed similar aberrant maternal behavior. Behaviors significantly associated with maternal performance in this study include suckling, nest building, placentophagia, pup grooming, and retrieval of pups after disturbance.
新生大鼠生长激素分泌的母体调节:母子相互作用的参与。
DOI: 10.1677/joe.0.1240233
发表时间: 1990
期刊: The Journal of endocrinology
影响因子: --
作者:
Kacsoh,B;Meyers,JS;Crowley,WR;Grosvenor,CE
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DOI: 10.1101/gr.171601
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DOI: --
发表时间: 2002-11
期刊: Genetics
影响因子: 3.3
作者:
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通讯作者: A. Peripato;R. A. de Brito;T. Vaughn;L. S. Pletscher;S. R. Matioli;J. Cheverud
DOI: 10.1126/science.7071605
发表时间: 1982-01-01
期刊: SCIENCE
影响因子: 56.9
作者:
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DOI: 10.1017/s0016672399004103
发表时间: 1999-12-01
期刊: GENETICS RESEARCH
影响因子: 1.5
作者:
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通讯作者: Cheverud, JM