Infuence of MHC on odour perception of 43 chemicals and body odour

Janeš, Damjan; Klun, Irena; Vidan-Jeras, B.; Jeras, Matjaž; Kreft, Samo

doi:10.2478/s11535-010-0020-6

Cited by 6 publications

(1 citation statement)

References 22 publications

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“…MHC proteins may also affect the composition of the bacterial flora of the host and the pleasantness of individual odor cues. In this way, MHC peptides can be perceived via olfaction or pheromone detection (Brennan and Kendrick 2006;Spehr et al 2006;Janeš et al 2010;Sturm et al 2013) and can function as signals of similarity between individuals, possibly driving active mate choice.…”

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confidence: 99%

Choosy Wolves? Heterozygote Advantage But No Evidence of MHC-Based Disassortative Mating

Galaverni

Caniglia

Milanesi

et al. 2015

JHERED

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A variety of nonrandom mate choice strategies, including disassortative mating, are used by vertebrate species to avoid inbreeding, maintain heterozygosity and increase fitness. Disassortative mating may be mediated by the major histocompatibility complex (MHC), an important gene cluster controlling immune responses to pathogens. We investigated the patterns of mate choice in 26 wild-living breeding pairs of gray wolf (Canis lupus) that were identified through noninvasive genetic methods and genotyped at 3 MHC class II and 12 autosomal microsatellite (STR) loci. We tested for deviations from random mating and evaluated the covariance of genetic variables at functional and STR markers with fitness proxies deduced from pedigree reconstructions. Results did not show evidences of MHC-based disassortative mating. Rather we found a higher peptide similarity between mates at MHC loci as compared with random expectations. Fitness values were positively correlated with heterozygosity of the breeders at both MHC and STR loci, whereas they decreased with relatedness at STRs. These findings may indicate fitness advantages for breeders that, while avoiding highly related mates, are more similar at the MHC and have high levels of heterozygosity overall. Such a pattern of MHC-assortative mating may reflect local coadaptation of the breeders, while a reduction in genetic diversity may be balanced by heterozygote advantages.

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confidence: 99%

Choosy Wolves? Heterozygote Advantage But No Evidence of MHC-Based Disassortative Mating

Galaverni

Caniglia

Milanesi

et al. 2015

JHERED

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On the Body Odour of Wild-Caught Mangrove-Marsh Bengal Tiger of Sundarban

Poddar-Sarkar

Ray

Chowdhury

et al. 2012

Chemical Signals in Vertebrates 12

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Global Study of Social Odor Awareness

et al. 2018

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Olfaction plays an important role in human social communication, including multiple domains in which people often rely on their sense of smell in the social context. The importance of the sense of smell and its role can however vary inter-individually and culturally. Despite the growing body of literature on differences in olfactory performance or hedonic preferences across the globe, the aspects of a given culture as well as culturally universal individual differences affecting odor awareness in human social life remain unknown. Here, we conducted a large-scale analysis of data collected from 10 794 participants from 52 study sites from 44 countries all over the world. The aim of our research was to explore the potential individual and country-level correlates of odor awareness in the social context. The results show that the individual characteristics were more strongly related than country-level factors to self-reported odor awareness in different social contexts. A model including individual-level predictors (gender, age, material situation, education, and preferred social distance) provided a relatively good fit to the data, but adding country-level predictors (Human Development Index, population density, and average temperature) did not improve model parameters. Although there were some cross-cultural differences in social odor awareness, the main differentiating role was played by the individual differences. This suggests that people living in different cultures and different climate conditions may still share some similar patterns of odor awareness if they share other individual-level characteristics.

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Infuence of MHC on odour perception of 43 chemicals and body odour

Cited by 6 publications

References 22 publications

Choosy Wolves? Heterozygote Advantage But No Evidence of MHC-Based Disassortative Mating

Choosy Wolves? Heterozygote Advantage But No Evidence of MHC-Based Disassortative Mating

On the Body Odour of Wild-Caught Mangrove-Marsh Bengal Tiger of Sundarban

Global Study of Social Odor Awareness

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