Transmission efficiency drives host-microbe associations.
Transmission efficiency drives host-microbe associations.
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DOI：
10.1098/rspb.2020.0820
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发表时间：
2020-09-09
期刊：
影响因子：
--
通讯作者：
Chapman T
中科院分区：
文献类型：
--
作者：
Leftwich PT;Edgington MP;Chapman T
测序技术促进了对与宿主相关的微生物群落的描述的快速增长，但通常更难确定的是这些共生体的进化意义。在这里，我们回顾的作用，垂直（VT），水平（HT），环境收购和混合模式的传播（MMT），在建立动物宿主微生物协会。然后，我们模拟了肠道微生物群的四个特性，这些特性被认为是促进动物宿主-微生物关系的关键：传播模式、宿主生殖模式、宿主配偶选择和宿主适应度。我们发现：（i）MMT导致宿主-微生物缔合的最高频率，并且除非VT是完美的，否则微生物的一些环境获取或HT需要形成持久的缔合;（ii）宿主繁殖模式（有性与无性）和宿主配偶选择（对于微生物携带者与非携带者）对宿主-微生物缔合的建立几乎没有影响;（iii）宿主配偶的选择本身并不导致生殖隔离，但可以加强它;（iv）由于宿主微生物协会在主机健身的变化有一个最小的影响后形成的共同协会。当我们引入第二个种群时，宿主-微生物载体可以分散到其中，但环境获取不会发生，宿主-微生物共缔合需要高效的VT。我们的研究表明，传播方式是建立宿主-微生物协会的关键。
Sequencing technologies have fuelled a rapid rise in descriptions of microbial communities associated with hosts, but what is often harder to ascertain is the evolutionary significance of these symbioses. Here, we review the role of vertical (VT), horizontal (HT), environmental acquisition and mixed modes of transmission (MMT), in the establishment of animal host–microbe associations. We then model four properties of gut microbiota proposed as key to promoting animal host–microbe relationships: modes of transmission, host reproductive mode, host mate choice and host fitness. We found that: (i) MMT led to the highest frequencies of host–microbe associations, and that some environmental acquisition or HT of microbes was required for persistent associations to form unless VT was perfect; (ii) host reproductive mode (sexual versus asexual) and host mate choice (for microbe carriers versus non-carriers) had little impact on the establishment of host–microbe associations; (iii) host mate choice did not itself lead to reproductive isolation, but could reinforce it; and (iv) changes in host fitness due to host–microbe associations had a minimal impact upon the formation of co-associations. When we introduced a second population, into which host–microbe carriers could disperse but in which environmental acquisition did not occur, highly efficient VT was required for host–microbe co-associations to persist. Our study reveals that transmission mode is of key importance in establishing host–microbe associations.
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影响因子：
16.6
作者：
Hannula, S. Emilia;Zhu, Feng;Bezemer, T. Martijn
通讯作者：
Bezemer, T. Martijn
DOI：
10.1111/j.1749-6632.1975.tb35099.x
发表时间：
1975-01-01
影响因子：
5.2
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DOI：
10.1126/science.1224203
发表时间：
2012-06-08
期刊：
Science (New York, N.Y.)
影响因子：
--
作者：
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通讯作者：
Relman DA
影响因子：
9.8
作者：
Bordenstein SR;Theis KR
通讯作者：
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