The Impact of Mutualisms on Species Richness

Trends in Ecology & Evolution, Год журнала: 2019, Номер 34(8), С. 698 - 711

Опубликована: Апрель 17, 2019

Язык: Английский

---

Bacterial Adaptation to the Host's Diet Is a Key Evolutionary Force Shaping Drosophila-Lactobacillus Symbiosis

Cell Host & Microbe, Год журнала: 2018, Номер 24(1), С. 109 - 119.e6

Опубликована: Июнь 28, 2018

Animal-microbe facultative symbioses play a fundamental role in ecosystem and organismal health. Yet, due to the flexible nature of their association, selection pressures that act on animals symbionts remain elusive. Here we apply experimental evolution Drosophila melanogaster associated with its growth-promoting symbiont Lactobacillus plantarum, representing well-established model symbiosis. We find diet host, rather than host itself, is predominant driving force this Furthermore, identify mechanism resulting from bacterium's adaptation diet, which confers growth benefits colonized host. Our study reveals bacterial host's may be foremost step determining evolutionary course animal-microbe

Язык: Английский

---

Host-Microbe Coevolution: Applying Evidence from Model Systems to Complex Marine Invertebrate Holobionts

mBio, Год журнала: 2019, Номер 10(1)

Опубликована: Янв. 28, 2019

Marine invertebrates often host diverse microbial communities, making it difficult to identify important symbionts and understand how these communities are structured. This complexity has also made challenging assign functions unravel the myriad of interactions among microbiota. Here we propose address issues by applying evidence from model systems host-microbe coevolution complex marine invertebrate microbiomes. Coevolution is reciprocal adaptation one lineage in response another can occur through interaction a its beneficial symbiont. A classic indicator codivergence microbe, this found both corals sponges. Metabolic collaboration between microbe linked appears likely holobionts, where interact with cells production degradation metabolic compounds. Neutral models useful distinguish selected microbes against background population consisting predominately random associates. Enhanced understanding their urgently required as coral reefs face unprecedented local global pressures active restoration approaches, including manipulation microbiome, proposed improve health tolerance reef species. On basis detailed review literature, three research criteria for examining invertebrates: (i) identifying stochastic deterministic components (ii) assessing (iii) confirming intimate association based on shared function.

Язык: Английский

---

Symbiont switching and alternative resource acquisition strategies drive mutualism breakdown

Proceedings of the National Academy of Sciences, Год журнала: 2018, Номер 115(20), С. 5229 - 5234

Опубликована: Апрель 30, 2018

Significance Cooperative interactions among species—mutualisms—are major sources of evolutionary innovation. However, despite their importance, two species that formerly cooperated sometimes cease partnership. Why do mutualisms break down? We asked this question in the partnership between arbuscular mycorrhizal (AM) fungi and plant hosts, one most ancient mutualisms. analyze potential trajectories toward breakdown cooperation, symbiont switching mutualism abandonment. find evidence plants stop interacting with AM when they switch to other microbial mutualists or evolve alternative strategies extract nutrients from environment. Our results show vital cooperative can be lost, but only if successful alternatives evolve.

Язык: Английский

---

The study of host–microbiome (co)evolution across levels of selection

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2020, Номер 375(1808), С. 20190604 - 20190604

Опубликована: Авг. 9, 2020

Microorganismal diversity can be explained in large part by selection imposed from both the abiotic and biotic environments, including-in case of host-associated microbiomes-interactions with eukaryotes. As such, microbiomes usefully studied across a variety scales: within single host over time, among genotypes population, between populations species. A plethora recent studies these scales diverse systems are: (i) exemplifying importance genetics shaping microbiome composition; (ii) uncovering role key phenotypes; (iii) highlighting dynamic nature microbiome. They have also raised critical question: do complex associations fit our existing understanding evolution coevolution, or often intimate seemingly cross-generational interactions follow novel evolutionary rules those previously identified? Herein, we describe known (co)evolution host-microbiome systems, placing data extant frameworks that been developed decades study, ask whether there are unique properties require paradigm shift. By examining when how act on its as unit (termed, holobiont), find conceptual framework, which focuses individuals, well individuals groups, is generally suited for (co)evolutionary change assemblages. This article theme issue 'The evolution'.

Язык: Английский

---

The Evolution of Mutualistic Dependence

Annual Review of Ecology Evolution and Systematics, Год журнала: 2020, Номер 51(1), С. 409 - 432

Опубликована: Авг. 18, 2020

While the importance of mutualisms across tree life is recognized, it not understood why some organisms evolve high levels dependence on mutualistic partnerships, while other species remain autonomous or retain regain minimal partners. We identify four main pathways leading to evolution dependence. Then, we evaluate current evidence for three predictions: ( a) Mutualisms with different have distinct stabilizing mechanisms against exploitation and cheating, b) less dependent mutualists will return autonomy more often than those that are highly dependent, c) obligate should be context facultative ones. Although find supporting all predictions, stress partners follow diverse paths toward—and away from—dependence. also highlight need better examine asymmetry in partner Recognizing how variation influences stability, breakdown, generates new hypotheses regarding benefits partnerships differ over time space.

Язык: Английский

---

Compartmentalization drives the evolution of symbiotic cooperation

Philosophical Transactions of the Royal Society B Biological Sciences, Год журнала: 2020, Номер 375(1808), С. 20190602 - 20190602

Опубликована: Авг. 9, 2020

Across the tree of life, hosts have evolved mechanisms to control and mediate interactions with symbiotic partners. We suggest that evolution physical structures allow spatially separate symbionts, termed compartmentalization, is a common mechanism used by hosts. Such compartmentalization allows to: (i) isolate symbionts their reproduction; (ii) reward cooperative punish or stop non-cooperative symbionts; (iii) reduce direct conflict among different strains in single host. Compartmentalization has allowed increase benefits they obtain from partners across diversity interactions, including legumes rhizobia, plants fungi, squid Vibrio , insects nutrient provisioning bacteria, insects, human microbiome. In cases where not evolved, we ask why not. argue when interact competitive hierarchy, engage partnerships which are less costly, likely evolve. conclude key understanding cooperation. This article part theme issue ‘The role microbiome host evolution’.

Язык: Английский

---

Ten recent insights for our understanding of cooperation

Nature Ecology & Evolution, Год журнала: 2021, Номер 5(4), С. 419 - 430

Опубликована: Янв. 28, 2021

Язык: Английский

---

Vertical transmission of sponge microbiota is inconsistent and unfaithful

Nature Ecology & Evolution, Год журнала: 2019, Номер 3(8), С. 1172 - 1183

Опубликована: Июль 8, 2019

Язык: Английский

---

Transmission mode is associated with environment type and taxa across bacteria-eukaryote symbioses: a systematic review and meta-analysis

FEMS Microbiology Letters, Год журнала: 2019, Номер 366(3)

Опубликована: Янв. 15, 2019

Symbiotic associations between bacteria and eukaryotes exhibit a range of transmission strategies. The rates distributions modes have not been thoroughly investigated across associations, despite their consequences on symbiont host evolution. To address this empirically, I compiled data from the literature bacteria-multicellular eukaryote for which mode was available. Of total 528 analyzed symbioses, 21.2% were strictly horizontally transmitted, 36.0% exhibited some form mixed 42.8% vertically transmitted. Controlling phylogenetically independent symbiosis events revealed approximately equally distributed among 113 at 32.1%+/-0.57% horizontal, 37.8%+/-1.4% 31.1%+/-1.3% vertical transmission. Binning symbioses by environment an abundance land lack it in aquatic environments. naturally occurring uneven distribution taxa environments prevented controlling host/symbiont phylogeny. However, results robust over large number independently evolved suggesting that many transmitted are capable barriers exist reduce rate horizontal events. Thus, both type influence

Язык: Английский

---