Chemical cues encode information used by conspecifics for a variety of reasons, including the assessment of the genotype of an individual in terms of genetic quality, diversity, similarity, and compatibility. Host microbiota are assumed to play a key role in genotype-associated chemical cues, but how is the information on the genetic makeup of an animal conveyed through odorant molecules produced by its microbial symbionts? In their comprehensive systematic review, (Schubert et al. (2021) elegantly synthesize the existing studies trying to answer this central question by focusing on a key component of the immune system, the major histocompatibility complex (MHC).

中文翻译：

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考虑鸟类以了解 MHC、微生物群和气味的相互作用：对 Schubert 等人的评论。

化学线索对同种动物出于各种原因使用的信息进行编码，包括在遗传质量、多样性、相似性和兼容性方面对个体基因型的评估。宿主微生物群被认为在与基因型相关的化学线索中起关键作用，但动物基因组成的信息是如何通过微生物共生体产生的气味分子传达的？在他们的综合系统评价中，（Schubert 等人（2021 年）通过关注免疫系统的一个关键组成部分，即主要组织相容性复合体 (MHC)，优雅地综合了试图回答这个核心问题的现有研究。