Dataset Information

Domestication Phenotype Linked to Vocal Behavior in Marmoset Monkeys.

ABSTRACT: The domestication syndrome refers to a set of traits that are the by-products of artificial selection for increased tolerance toward humans [1-3]. One hypothesis is that some species, like humans and bonobos, "self-domesticated" and have been under selection for that same suite of domesticated phenotypes [4-8]. However, the evidence for this has been largely circumstantial. Here, we provide evidence that, in marmoset monkeys, the size of a domestication phenotype-a white facial fur patch-is linked to their degree of affiliative vocal responding. During development, the amount of parental vocal feedback experienced influences the rate of growth of this facial white patch, and this suggests a mechanistic link between the two phenotypes, possibly via neural crest cells. Our study provides evidence for links between vocal behavior and the development of morphological phenotypes associated with domestication in a nonhuman primate.

SUBMITTER: Ghazanfar AA

PROVIDER: S-EPMC8204797 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Domestication Phenotype Linked to Vocal Behavior in Marmoset Monkeys.

Ghazanfar Asif A AA Kelly Lauren M LM Takahashi Daniel Y DY Winters Sandra S Terrett Rebecca R Higham James P JP

Current biology : CB 20201015 24

The domestication syndrome refers to a set of traits that are the by-products of artificial selection for increased tolerance toward humans [1-3]. One hypothesis is that some species, like humans and bonobos, "self-domesticated" and have been under selection for that same suite of domesticated phenotypes [4-8]. However, the evidence for this has been largely circumstantial. Here, we provide evidence that, in marmoset monkeys, the size of a domestication phenotype-a white facial fur patch-is link ...[more]

PMID: 33065007

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Project description:ObjectiveIn adult female rodents, ovarian estradiol (E2) regulates body weight, adiposity, energy balance, physical activity, glucose-insulin homeodynamics, and lipid metabolism, while protecting against diet-induced obesity. The same E2 actions are presumed to occur in primates, but confirmatory studies have been lacking.MethodsWe investigated the consequences of ovariectomy (OVX) and E2 replacement in female marmoset monkeys on major metabolic and morphometric endpoints. Sexual behavior and uterine diameters were assessed as positive controls for E2 treatment efficacy. Metabolic parameters were measured 1 mo prior to OVX, and 3 and 6 mo thereafter. During OVX, animals received empty or E2-containing silastic s.c. implants. To test the interaction between E2 and diet, both treatment groups were assigned to either a higher fat diet (HFD) or a low-fat diet (LFD).ResultsAs anticipated, OVX animals exhibited diminished frequency (p = 0.04) of sexually receptive behavior and increased rejection behavior (p = 0.04) toward their male partners compared with E2-treated OVX females. OVX also decreased (p = 0.01) uterine diameter. There were no treatment effects on total caloric intake. There were no significant effects of OVX, E2 treatment, or diet on body weight, body composition, energy expenditure, physical activity, fasting glucose, or glucose tolerance. Regardless of E2 treatment, serum triglycerides were higher (p = 0.05) in HFD than LFD females. Postmortem qPCR analysis of hypothalamic tissues revealed higher mRNA expression (p < 0.001) for PGR in E2-treated monkeys versus OVX controls regardless of diet, but no differences between groups in other selected metabolic genes. In contrast, regardless of E2 treatment, there was a decreased mRNA expression of PGC1α (PPARGC1A), HTR1A, and HTR5A in HFD compared with LFD females.ConclusionsOur findings, overall, document a greatly diminished role for ovarian E2 in the metabolic physiology of a female primate, and encourage consideration that primates, including humans, evolved metabolic control systems regulated by extra-ovarian E2 or are generally less subject to E2 regulation.

Dataset Information

Domestication Phenotype Linked to Vocal Behavior in Marmoset Monkeys.

Publications

Domestication Phenotype Linked to Vocal Behavior in Marmoset Monkeys.

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