Herbivore range expansion triggers adaptation in a subsequently-associated third trophic level species and shared microbial symbionts

Ke, Fushi; You, Shijun; Huang, Sumei; Chen, Weijun; Liu, Tiansheng; He, Weiyi; Xie, Dong; Li, Qiang; Lin, Xi Victoria; Vasseur, Liette; Gurr, Geoff M.; You, Minsheng

doi:10.1038/s41598-019-46742-3

Cited by 5 publications

(5 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Specifically, regions that are only seasonally suitable for DBM growth and development (i.e., with an ecoclimatic index, EI = 0) are too harsh to allow survival in low temperature conditions during the winter. Annual recolonization of those regions from areas where DBM can overwinter (with an ecoclimatic index, EI > 0) has been biologically and genetically confirmed 14 , 60 – 63 . No genetic differentiation was found among different geographical populations spanning from overwintering regions to seasonally inhabited regions 15 , 62 , 63 .…”

Section: Methodsmentioning

confidence: 97%

“…Annual recolonization of those regions from areas where DBM can overwinter (with an ecoclimatic index, EI > 0) has been biologically and genetically confirmed 14 , 60 – 63 . No genetic differentiation was found among different geographical populations spanning from overwintering regions to seasonally inhabited regions 15 , 62 , 63 . If migration from one habitat overwhelms the other, migration from the source introduces new genetic variation that may prevent local adaptation 64 , 65 .…”

Section: Methodsmentioning

confidence: 97%

See 1 more Smart Citation

Large-scale genome-wide study reveals climate adaptive variability in a cosmopolitan pest

Chen

Régnière

et al. 2021

Nat Commun

Self Cite

View full text Add to dashboard Cite

Understanding the genetic basis of climatic adaptation is essential for predicting species’ responses to climate change. However, intraspecific variation of these responses arising from local adaptation remains ambiguous for most species. Here, we analyze genomic data from diamondback moth (Plutella xylostella) collected from 75 sites spanning six continents to reveal that climate-associated adaptive variation exhibits a roughly latitudinal pattern. By developing an eco-genetic index that combines genetic variation and physiological responses, we predict that most P. xylostella populations have high tolerance to projected future climates. Using genome editing, a key gene, PxCad, emerged from our analysis as functionally temperature responsive. Our results demonstrate that P. xylostella is largely capable of tolerating future climates in most of the world and will remain a global pest beyond 2050. This work improves our understanding of adaptive variation along environmental gradients, and advances pest forecasting by highlighting the genetic basis for local climate adaptation.

show abstract

Section: Methodsmentioning

confidence: 97%

Section: Methodsmentioning

confidence: 97%

Large-scale genome-wide study reveals climate adaptive variability in a cosmopolitan pest

Chen

Régnière

et al. 2021

Nat Commun

Self Cite

View full text Add to dashboard Cite

show abstract

“…shared hostplant [ 99 ]), or shared parasitism (e.g. shared mites [ 100 ] or parasitoids [ 101 ]). Damselflies are well-known for carrying and sharing ectoparasitic water mites [ 41 , 102 ], however the role of such parasites as vectors of Wolbachia among Ischnura species remains unknown.…”

Section: Discussionmentioning

confidence: 99%

Wolbachia-driven selective sweep in a range expanding insect species

et al. 2021

View full text Add to dashboard Cite

Background Evolutionary processes can cause strong spatial genetic signatures, such as local loss of genetic diversity, or conflicting histories from mitochondrial versus nuclear markers. Investigating these genetic patterns is important, as they may reveal obscured processes and players. The maternally inherited bacterium Wolbachia is among the most widespread symbionts in insects. Wolbachia typically spreads within host species by conferring direct fitness benefits, and/or by manipulating its host reproduction to favour infected over uninfected females. Under sufficient selective advantage, the mitochondrial haplotype associated with the favoured maternally-inherited symbiotic strains will spread (i.e. hitchhike), resulting in low mitochondrial genetic variation across the host species range. Method The common bluetail damselfly (Ischnura elegans: van der Linden, 1820) has recently emerged as a model organism for genetics and genomic signatures of range expansion during climate change. Although there is accumulating data on the consequences of such expansion on the genetics of I. elegans, no study has screened for Wolbachia in the damselfly genus Ischnura. Here, we present the biogeographic variation in Wolbachia prevalence and penetrance across Europe and Japan (including samples from 17 populations), and from close relatives in the Mediterranean area (i.e. I. genei: Rambur, 1842; and I. saharensis: Aguesse, 1958). Results Our data reveal (a) multiple Wolbachia-strains, (b) potential transfer of the symbiont through hybridization, (c) higher infection rates at higher latitudes, and (d) reduced mitochondrial diversity in the north-west populations, indicative of hitchhiking associated with the selective sweep of the most common strain. We found low mitochondrial haplotype diversity in the Wolbachia-infected north-western European populations (Sweden, Scotland, the Netherlands, Belgium, France and Italy) of I. elegans, and, conversely, higher mitochondrial diversity in populations with low penetrance of Wolbachia (Ukraine, Greece, Montenegro and Cyprus). The timing of the selective sweep associated with infected lineages was estimated between 20,000 and 44,000 years before present, which is consistent with the end of the last glacial period about 20,000 years. Conclusions Our findings provide an example of how endosymbiont infections can shape spatial variation in their host evolutionary genetics during postglacial expansion. These results also challenge population genetic studies that do not consider the prevalence of symbionts in many insects, which we show can impact geographic patterns of mitochondrial genetic diversity.

show abstract

“…shared hostplant [75]), or shared parasitism (e.g. shared mites [76], or shared parasitoids [77]). Damsel ies are well-known for carrying and sharing ectoparasitic water mites [38,78], however the role of such parasites as vectors of Wolbachia between Ischnura species remains unknown.…”

Section: Discussionmentioning

confidence: 99%

Wolbachia-driven selective sweep in a range expanding insect species

Deng

Assandri

Chauhan

et al. 2021

Preprint

View full text Add to dashboard Cite

BackgroundEvolutionary processes can cause strong spatial genetic signatures, such as local loss of genetic diversity, or conflicting histories from mitochondrial versus nuclear markers. Investigating these genetic patterns is important, as they may reveal obscured processes and players. The maternally inherited bacterium Wolbachia is among the most widespread symbionts in insects. Wolbachia typically spreads within host species by conferring direct fitness benefits, or by manipulating its host reproduction to favour infected over uninfected females. Under sufficient selective advantage, the mitochondrial haplotype associated with the favoured symbiotic strains will spread (i.e. hitchhike), resulting in low mitochondrial genetic variation across the host species range. The common bluetail damselfly (Ischnura elegans: van der Linden, 1820) has recently emerged as a model organism of the genetics and genomic signatures of range expansion during climate change. Although there is accumulating data on the consequences of such expansion on the genetic of I. elegans, no study has screened for Wolbachia in the damselfly genus Ischnura. Here, we present the biogeographic variation in Wolbachia prevalence and penetrance in 17 I. elegans populations across Europe and Japan, and from close relatives in the Mediterranean area (i.e. I. genei: Rambur, 1842; and I. saharensis: Aguesse, 1958). ResultsOur data reveal (a) multiple Wolbachia-strains, (b) potential transfer of the symbiont through hybridization, (c) higher infection rates at higher latitudes, and (d) reduced mitochondrial diversity in the north-west populations, indicative of hitchhiking associated with the selective sweep of the most common strain. We found low mitochondrial haplotype diversity in the Wolbachia-infected north-western European populations (Sweden, Scotland, the Netherlands, Belgium, France and Italy) of I. elegans, and, conversely, higher mitochondrial diversity in populations with low penetrance of Wolbachia (Ukraine, Greece, Montenegro and Cyprus). The timing of the selective sweep associated with infected lineages was estimated between 20 000 to 44 000 years before present, which is consistent with the end of the last glacial period about 20 000 ya. ConclusionsOur findings provide an example of how endosymbiont infections ca shape spatial variation in their host evolutionary genetics during postglacial expansion. These results also challenge population genetic studies that do not consider the prevalence of symbionts in many insects, which can impact geographic patterns of mitochondrial genetic diversity.

show abstract

Herbivore range expansion triggers adaptation in a subsequently-associated third trophic level species and shared microbial symbionts

Cited by 5 publications

References 49 publications

Large-scale genome-wide study reveals climate adaptive variability in a cosmopolitan pest

Large-scale genome-wide study reveals climate adaptive variability in a cosmopolitan pest

Wolbachia-driven selective sweep in a range expanding insect species

Wolbachia-driven selective sweep in a range expanding insect species

Contact Info

Product

Resources

About

Herbivore range expansion triggers adaptation in a subsequently-associated third trophic level species and shared microbial symbionts

Cited by 5 publications

References 49 publications

Large-scale genome-wide study reveals climate adaptive variability in a cosmopolitan pest

Large-scale genome-wide study reveals climate adaptive variability in a cosmopolitan pest

Wolbachia-driven selective sweep in a range expanding insect species

Wolbachia-driven selective&nbsp;sweep&nbsp;in a range expanding&nbsp;insect&nbsp;species

Contact Info

Product

Resources

About

Wolbachia-driven selective sweep in a range expanding insect species