Journal of Evolutionary Biology最新文献

Molecular underpinnings of plasticity and supergene-mediated polymorphism in fire ant queens.

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-18 DOI: 10.1093/jeb/voae159

Alex H Waugh, Michael A Catto, Samuel V Arsenault, Sasha Kay, Kenneth G Ross, Brendan G Hunt

{"title":"Molecular underpinnings of plasticity and supergene-mediated polymorphism in fire ant queens.","authors":"Alex H Waugh, Michael A Catto, Samuel V Arsenault, Sasha Kay, Kenneth G Ross, Brendan G Hunt","doi":"10.1093/jeb/voae159","DOIUrl":"https://doi.org/10.1093/jeb/voae159","url":null,"abstract":"Characterizing molecular underpinnings of plastic traits and balanced polymorphisms represent two important goals of evolutionary biology. Fire ant gynes (pre-reproductive queens) provide an ideal system to study potential links between these phenomena because they exhibit both supergene-mediated polymorphism and nutritional plasticity in weight and colony-founding behavior. Gynes with the inversion supergene haplotype are lightweight and depend on existing workers to initiate reproduction. Gynes with only the ancestral, non-inverted gene arrangement accumulate more nutrient reserves as adults and, in a distinct colony-founding behavior, initiate reproduction without help from workers. However, when such gynes overwinter in the natal nest they develop an environmentally induced lightweight phenotype and colony-founding behavior, similar to gynes with the inversion haplotype that have not overwintered. To evaluate the extent of shared mechanisms between plasticity and balanced polymorphism in fire ant gyne traits, we assessed whether genes with expression variation linked to overwintering plasticity may be affected by evolutionary divergence between supergene haplotypes. To do so, we first compared transcriptional profiles of brains and ovaries from overwintered and non-overwintered gynes to identify plasticity-associated genes. These genes were enriched for metabolic and behavioral functions. Next, we compared plasticity-associated genes to those differentially expressed by supergene genotype, revealing a significant overlap of the two sets in ovarian tissues. We also identified sequence substitutions between supergene variants of multiple plasticity-associated genes, consistent with a scenario in which an ancestrally plastic phenotype responsive to an environmental condition became increasingly genetically regulated.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142856578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Skewed X Chromosome Inactivation As A Response To Sexually Antagonistic Selection. 偏斜的 X 染色体失活是对性别对抗性选择的反应

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-16 DOI: 10.1093/jeb/voae157

Naomi L Greenberg, Manus M Patten

{"title":"Skewed X Chromosome Inactivation As A Response To Sexually Antagonistic Selection.","authors":"Naomi L Greenberg, Manus M Patten","doi":"10.1093/jeb/voae157","DOIUrl":"https://doi.org/10.1093/jeb/voae157","url":null,"abstract":"In eutherians, one of the X chromosomes in each cell of the early female embryo is rendered transcriptionally silent through X chromosome inactivation. The choice of which X chromosome to inactivate takes place independently in each cell and is stably inherited through development, leading to a roughly 50:50 ratio of cells in the adult body expressing one or the other X chromosome. However, X chromosome inactivation can be skewed, with certain X chromosomes showing a heritable tendency to avoid inactivation. Using population genetic models, we test whether genetic variation for this trait can be maintained by linked sexually antagonistic selection. In favor of this hypothesis, we find that a neutral modifier that affects the chances of its chromosome's inactivation-e.g., a variant of the X controlling element (Xce)-can spread when linked to a sexually antagonistic gene. We explore the logic of this modifier's spread, which we find to be similar in many respects to that of a modifier of dominance. We also test for the presence of a \"drift barrier\"-i.e., a population size below which the indirect selective force favoring the modifier becomes too weak to overcome drift. On balance, we find that sexual antagonism may encourage the spread of skewed X chromosome inactivation, but only under favorable conditions.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142830749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Genetics of Recombination Rate Variation Within and Between Species.

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-16 DOI: 10.1093/jeb/voae158

Bret A Payseur

{"title":"Genetics of Recombination Rate Variation Within and Between Species.","authors":"Bret A Payseur","doi":"10.1093/jeb/voae158","DOIUrl":"https://doi.org/10.1093/jeb/voae158","url":null,"abstract":"Recombination diversifies the genomes of offspring, influences the evolutionary dynamics of populations, and ensures that chromosomes segregate properly during meiosis. Individuals recombine at different rates but observed levels of variation in recombination rate remain mostly unexplained. Genetic dissection of differences in recombination rate within and between species provides a powerful framework for understanding how this trait evolves. In this Perspective, I amalgamate published findings from genetic studies of variation in the genome-wide number of crossovers within and between species, and I use exploratory analyses to identify preliminary patterns. The narrow-sense heritability of crossover count is consistently low, indicating limited resemblance among relatives and predicting a weak response to short-term selection. Variants associated with crossover number within populations span the range of minor allele frequency. The size of the additive effect of recombination-associated variants, along with a negative correlation between this effect and minor allele frequency, raises the prospect that mutations inducing phenotypic shifts larger than a few crossovers are deleterious, though the contributions of methodological biases to these patterns deserve investigation. Quantitative trait loci that contribute to differences between populations or species alter crossover number in both directions, a pattern inconsistent with selection toward a constant optimum for this trait. Building on this characterization of genetic variation in crossover number within and between species, I describe fruitful avenues for future research. Better integrating recombination rate into quantitative genetics will reveal the balance of evolutionary forces responsible for genetic variation in this trait that shapes inheritance.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142830748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Individual variation and selection for phenotypic plasticity of laying date and clutch size across different environmental conditions in Tree swallow (Tachycineta bicolor).

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-14 DOI: 10.1093/jeb/voae156

Audrey Tremblay, Fanie Pelletier, Andrew Macdonald, Dany Garant

{"title":"Individual variation and selection for phenotypic plasticity of laying date and clutch size across different environmental conditions in Tree swallow (Tachycineta bicolor).","authors":"Audrey Tremblay, Fanie Pelletier, Andrew Macdonald, Dany Garant","doi":"10.1093/jeb/voae156","DOIUrl":"https://doi.org/10.1093/jeb/voae156","url":null,"abstract":"Several studies have emphasized that phenotypic plasticity should be a key mechanism to cope with current rapid environmental changes by allowing individuals to quickly express new adaptive phenotypes. Yet, few studies have investigated the evolutionary potential of plasticity for multiple traits simultaneously and using several different environmental variables. Here, we assess the extent of variation in, and the selection acting on phenotypic plasticity of key ecological traits, laying date and clutch size, using five environmental variables, in a Tree swallow (Tachycineta bicolor) population monitored since 2004. While we found some variation among females in their mean laying date and plasticity, we found evidence of selection acting only on mean laying date. We found no variation among females in mean clutch size or plasticity, such that we could not assess selection acting on either. Our results suggest that the evolutionary potential of plasticity in the population under study is limited, especially for clutch size. More studies investigating plasticity in wild populations and incorporating multiple traits and environmental variables are needed to understand future responses of animal populations to environmental changes.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142824670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The role of evolving niche choice in herbivore adaptation to host plants.

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-12 DOI: 10.1093/jeb/voae154

Peter Nabutanyi, Alitha Edison, Peter Czuppon, Shuqing Xu, Meike Wittmann

{"title":"The role of evolving niche choice in herbivore adaptation to host plants.","authors":"Peter Nabutanyi, Alitha Edison, Peter Czuppon, Shuqing Xu, Meike Wittmann","doi":"10.1093/jeb/voae154","DOIUrl":"https://doi.org/10.1093/jeb/voae154","url":null,"abstract":"Individuals living in heterogeneous environments often choose microenvironments that provide benefits to their fitness. Theory predicts that such niche choice can promote rapid adaptation to novel environments and help maintain genetic diversity. An open question of large applied importance is how niche choice and niche choice evolution affect the evolution of insecticide resistance in phytophagous insects. We, therefore, developed an individual-based model based on phytophagous insects to examine the evolution of insecticide resistance and niche choice via oviposition preferences. To find biologically realistic parameter ranges, we performed an empirical literature survey on insecticide resistance in major agricultural pests and also conducted a density-dependent survival experiment using potato beetles. We find that, in comparison to a scenario where individuals randomly oviposit eggs on toxic or non-toxic plants, the evolution of niche choice generally leads to slower evolution of resistance and facilitates the coexistence of different phenotypes. Our simulations also reveal that recombination rate and dominance effects can influence the evolution of both niche choice and resistance. Thus, this study provides new insights into the effects of niche choice on resistance evolution and highlights the need for more studies on the genetic basis of resistance and choice.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dispersal-fecundity trade-offs in wild insect populations.

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-12 DOI: 10.1093/jeb/voae155

Graham A McCulloch, Brodie J Foster, Gracie C Kroos, Yasmin Foster, Steven Ni, Marianne F S Vogel, Jonathan M Waters

{"title":"Dispersal-fecundity trade-offs in wild insect populations.","authors":"Graham A McCulloch, Brodie J Foster, Gracie C Kroos, Yasmin Foster, Steven Ni, Marianne F S Vogel, Jonathan M Waters","doi":"10.1093/jeb/voae155","DOIUrl":"https://doi.org/10.1093/jeb/voae155","url":null,"abstract":"Wing reduction is a common feature of upland insect communities. This phenomenon is thought to be primarily driven by selection against flight, which is typically unfavorable in upland environments due to high winds and cold temperatures. In some insect taxa, wing-reduction has been directly linked to increased fecundity. However, few studies have directly tested for shifts in fecundity linked to flight musculature. Here we test for dispersal-fecundity trade-offs in the widespread subalpine stonefly Zelandoperla fenestrata. Our analysis of 450 stoneflies across 81 localities reveals significant dispersal-fecundity tradeoffs. Specifically, we identify a positive association between the size of their flight muscles and the length of their wings, and a negative association between wing length and ovarian mass. Furthermore, we found a significant negative relationship between flight musculature and ovary mass. These results represent a rare example of a dispersal-fecundity tradeoff in the wild, and illustrate that such tradeoffs can potentially involve corresponding reductions in both flight musculature and wing development. Our findings suggest that widespread taxa subject to variable environmental conditions may benefit from flexible allocation of energetic resources.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142814819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Host control by Acmispon strigosus constrains fitness gains of ineffective Bradyrhizobium symbionts in mixed infections.

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-11 DOI: 10.1093/jeb/voae151

Camille E Wendlandt, Julio Avelar-Barragan, Avissa J Zomorrodian, Khadija Al-Moussawi, Stephanie S Porter, Joel L Sachs

{"title":"Host control by Acmispon strigosus constrains fitness gains of ineffective Bradyrhizobium symbionts in mixed infections.","authors":"Camille E Wendlandt, Julio Avelar-Barragan, Avissa J Zomorrodian, Khadija Al-Moussawi, Stephanie S Porter, Joel L Sachs","doi":"10.1093/jeb/voae151","DOIUrl":"https://doi.org/10.1093/jeb/voae151","url":null,"abstract":"Plant hosts can gain significant growth benefits from symbiosis with microbes, but these benefits could be threatened by divergent fitness interests among partners. Here, we measured fitness outcomes in symbiosis, by varying the genotypes of both microbes and hosts, to examine scenarios that might favor uncooperative symbionts. We studied associations between Acmispon strigosus, an annual legume native to California, and its nitrogen fixing symbionts in the genus Bradyrhizobium. Bradyrhizobium symbionts form root nodules on compatible hosts, with strains varying from effective, fixing substantial nitrogen for the host, to ineffective strains that do not fix nitrogen and provide no benefit to host growth. We co-inoculated four A. strigosus plant lines with nine combinations of effective and ineffective Bradyrhizobium strains and measured the relative fitness of ineffective strains within individual nodules, as hosts must select against uncooperative symbionts to maintain benefits. In mixed infections, ineffective strains always had lower relative fitness in nodules compared to beneficial strains, consistent with efficient punishment of nonfixing rhizobia. However, ineffective strains exhibited genotypic variation in their fitness in nodules within individual nodules co-infected with a beneficial strain, suggesting a role for symbiont competitiveness in shaping this joint phenotype. Variation in symbiont fitness during co-inoculations did not measurably affect plant performance, suggesting that predicted conflict over the joint phenotype of rhizobia fitness has negligible effect on the host.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808397","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Biological agency: a concept without a research program.

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-10 DOI: 10.1093/jeb/voae153

James DiFrisco, Richard Gawne

引用次数: 0

Arthropod mtDNA paraphyly: a case study of introgressive origin.

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-10 DOI: 10.1093/jeb/voae152

Víctor Noguerales, Brent C Emerson

{"title":"Arthropod mtDNA paraphyly: a case study of introgressive origin.","authors":"Víctor Noguerales, Brent C Emerson","doi":"10.1093/jeb/voae152","DOIUrl":"https://doi.org/10.1093/jeb/voae152","url":null,"abstract":"Mitochondrial paraphyly between arthropod species is not uncommon, and has been speculated to largely be the result of incomplete lineage sorting (ILS) of ancestral variation within the common ancestor of both species, with hybridisation playing only a minor role. However, in the absence of comparable nuclear genetic data, the relative roles of ILS and hybridisation in explaining mitochondrial DNA (mtDNA) paraphyly remain unclear. Hybridisation itself is a multifaceted gateway to paraphyly, which may lead to paraphyly across both the nuclear and mitochondrial genomes, or paraphyly that is largely restricted to the mitochondrial genome. These different outcomes will depend upon the frequency of hybridisation, its demographic context, and the extent to which mtDNA is subject to direct selection, indirect selection, or neutral processes. Here we describe extensive mtDNA paraphyly between two species of iron-clad beetle (Zopheridae) and evaluate competing explanations for its origin. We first test between hypotheses of ILS and hybridisation, revealing strong nuclear genetic differentiation between species, but with the complete replacement of Tarphius simplex mtDNA through the introgression of at least five mtDNA haplotypes from T. canariensis. We then contrast explanations of direct selection, indirect selection, or genetic drift for observed patterns of mtDNA introgression. Our results highlight how introgression can lead to complex patterns of mtDNA paraphyly across arthropod species, while simultaneously revealing the challenges for understanding the selective or neutral drivers that underpin such patterns.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142808395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Allometry, sexual dimorphism, and Rensch's rule in pygmy and marbled newts. 侏儒蝾螈和大理石纹蝾螈的异形、性双态性和伦施规则。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2024-12-03 DOI: 10.1093/jeb/voae150

Ana Ivanović, Tijana Vučić, Jan W Arntzen

{"title":"Allometry, sexual dimorphism, and Rensch's rule in pygmy and marbled newts.","authors":"Ana Ivanović, Tijana Vučić, Jan W Arntzen","doi":"10.1093/jeb/voae150","DOIUrl":"https://doi.org/10.1093/jeb/voae150","url":null,"abstract":"Allometry, the relationship between body size and the size of other body parts, explains a significant portion of morphological variation across biological levels, at the individual level, within and between species. We used external morphology measurements of 6 Triturus (sub)species, focussing on the T. marmoratus species group, to explore allometric parameters within and between taxa. We tested for allometry of sexual size dimorphism in body, head, and limb dimensions and examined whether intraspecific allometry directed evolutionary allometry, as described by Rensch's rule. Our findings indicated that female-biased trunk and head dimensions exhibited positive allometry, whereas male-biased limb dimensions showed isometric relationships or weak correlations with body size. Morphological divergences between sexes occurred along common allometric slopes, most often through changes in the intercepts. Among taxon, comparisons revealed that (sub)species diverged in the direction of the allometric slopes. In line with Rensch's rule, sexual size dimorphism in female-biased traits significantly decreased as overall body size increased. However, the observed intraspecific allometric parameters deviated from theoretical expectations because the steepest allometric slopes for female-biased traits were recorded in the larger species. Our results contribute to understanding the dynamics of allometric relationships and sexual dimorphism in amphibians and provide a robust baseline for future comparative analyses.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2024-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142819984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0