The social formation of fitness: lifetime consequences of prenatal nutrition and postnatal care in a wild mammal population.
The social formation of fitness: lifetime consequences of prenatal nutrition and postnatal care in a wild mammal population.
复制标题
DOI：
10.1098/rstb.2022.0309
复制
发表时间：
2023-08-14
影响因子：
6.3
通讯作者：
Cant, M. A.
中科院分区：
文献类型：
--
作者：
Vitikainen, E. I. K.;Meniri, M.;Marshall, H. H.;Thompson, F. J.;Businge, R.;Mwanguhya, F.;Kyabulima, S.;Mwesige, K.;Ahabonya, S.;Sanderson, J. L.;Kalema-Zikusoka, G.;Hoffman, J. I.;Wells, D.;Lewis, G.;Walker, S. L.;Nichols, H. J.;Blount, J. D.;Cant, M. A.
关键词：
医学和进化生物学研究表明，父母投资的顺序对后代的生活史和健康有着至关重要的影响。在这里，我们利用野生带獴的同步生育系统来通过实验测试在产前和产后接受额外投资对后代的一生影响。我们在怀孕期间为每组中一半的繁殖雌性提供了额外的食物，而另一半则作为匹配的对照。这种操作在同步出生的窝中产生了两类实验后代：（i）“产前增强”后代，其母亲在怀孕期间得到喂养，以及（ii）“产后增强”后代，其母亲在怀孕期间没有喂养，但在产后接受额外的异亲护理。产前增强后代的成年寿命要长得多，但出生后增强后代的终生生殖成功率（LRS）更高，并且在整个生命周期中糖皮质激素水平更高。两种类型的实验后代都比未经处理的后代具有更高的 LRS。我们发现两个实验类别的后代在成年体重、首次繁殖年龄、氧化应激或端粒长度方面没有差异。这些发现是罕见的实验证据，表明产前和产后投资对塑造野生哺乳动物的个体生活史和健康具有独特的影响。本文是主题“不平等的进化生态学”的一部分。
Research in medicine and evolutionary biology suggests that the sequencing of parental investment has a crucial impact on offspring life history and health. Here, we take advantage of the synchronous birth system of wild banded mongooses to test experimentally the lifetime consequences to offspring of receiving extra investment prenatally versus postnatally. We provided extra food to half of the breeding females in each group during pregnancy, leaving the other half as matched controls. This manipulation resulted in two categories of experimental offspring in synchronously born litters: (i) ‘prenatal boost’ offspring whose mothers had been fed during pregnancy, and (ii) ‘postnatal boost’ offspring whose mothers were not fed during pregnancy but who received extra alloparental care in the postnatal period. Prenatal boost offspring lived substantially longer as adults, but postnatal boost offspring had higher lifetime reproductive success (LRS) and higher glucocorticoid levels across the lifespan. Both types of experimental offspring had higher LRS than offspring from unmanipulated litters. We found no difference between the two experimental categories of offspring in adult weight, age at first reproduction, oxidative stress or telomere lengths. These findings are rare experimental evidence that prenatal and postnatal investments have distinct effects in moulding individual life history and fitness in wild mammals. This article is part of the theme issue ‘Evolutionary ecology of inequality’.
登录
查看更多内容
影响因子：
2.8
作者：
Dantzer, Ben;van Kesteren, Freya;Monaghan, Pat
通讯作者：
Monaghan, Pat
DOI：
10.1073/pnas.1312626111
发表时间：
2014-01-07
影响因子：
11.1
作者：
Cant, Michael A.;Nichols, Hazel J.;Hodge, Sarah J.
通讯作者：
Hodge, Sarah J.
影响因子：
2.3
作者：
Gilchrist, Jason S.;Russell, Andrew F.
通讯作者：
Russell, Andrew F.
影响因子：
2.4
作者：
Gilchrist, JS
通讯作者：
Gilchrist, JS
影响因子：
2.4
作者：
Giordano, Marta;Groothuis, Ton G. G.;Tschirren, Barbara
通讯作者：
Tschirren, Barbara