Beyond specialization: re-examining routes of host influence on symbiont evolution

被引：13

作者：

Lajoie, Genevieve ^{[1
,2
,3
]}

Parfrey, Laura Wegener ^{[1
]}

机构：

[1] Univ British Columbia, Bot Dept, 6270 Univ Blvd, Vancouver, BC V6T1Z4, Canada

[2] Jardin Bot Montreal, 4101 Rue Sherbrooke E, Montreal, PQ H1X2B2, Canada

[3] Univ Montreal, Inst Rech Biol Vegetale, 4101 Rue Sherbrooke E, Montreal, PQ H1X2B2, Canada

来源：

TRENDS IN ECOLOGY & EVOLUTION | 2022年 / 37卷 / 07期

基金：

加拿大自然科学与工程研究理事会;

关键词：

HORIZONTAL GENE-TRANSFER; BACTERIAL SYMBIONT; GUT; COSPECIATION; COEVOLUTION; GENERALISTS; PLASTICITY;

D O I：

10.1016/j.tree.2022.03.006

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

Our understanding of host influence on microbial evolution has focused on symbiont specialization and the genomic streamlining that often accompanies it. However, a vast diversity of symbiotic lineages facultatively interact with hosts or associate with multiple hosts. Yet, there are no clear expectations for how host association influences the niche of these symbionts or their evolution. Here, we discuss how weak or variable selection on microbial symbiotic associations, horizontal transmission, and low costs of adaptation to novel host habitats are predicted to promote the expansion or maintenance of microbial niches. This broad perspective will aid in developing better and more general predictions for evolution in microbial symbioses.

引用

页码：590 / 598

页数：9

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