Journal of Evolutionary Biology最新文献_第8页

Karyotype evolution and speciation in Orthoptera. 直翅目核型进化与物种形成。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf018

Octavio M Palacios-Gimenez, Elio R D Castillo, Holger Schielzeth

{"title":"Karyotype evolution and speciation in Orthoptera.","authors":"Octavio M Palacios-Gimenez, Elio R D Castillo, Holger Schielzeth","doi":"10.1093/jeb/voaf018","DOIUrl":"10.1093/jeb/voaf018","url":null,"abstract":"Karyotype evolution might fuel speciation and can thereby contribute to species diversity. To test the hypothesis that speciation and karyotype change are linked, we estimated anagenetic and cladogenetic rates of karyotype evolution as well as speciation rates in Orthoptera. We compiled the male diploid chromosome number and the number of visible chromosome arms (the fundamental number) from published sources for 1,541 species. Chromosome-associated speciation rates were estimated by jointly modelling cladogenetic and anagenetic character evolution and the phylogenetic birth-death process in a Bayesian statistical framework using a subset of 516 species from 14 families. Our findings unveiled heterogeneity among orthopteran families in the pace of karyotype evolution and whether it was linked to speciation. In 6/14 clades, we found evidence supporting speciation-associated (cladogenetic) karyotype changes, while in 6/14 clades karyotype evolution was primarily anagenetic. The remaining clades (2/14) showed uncertainty in favour of either model. We further analyzed whether flightless phenotype, and thus less mobile species, showed higher rates of karyotype evolution. We showed that the flightless phenotype is associated with the rate of chromosome loss. The finding indicates contrasting patterns of karyotype evolution within specific orthopteran lineages, thus emphasizing substantial diversity in the pace of this evolutionary process. It also implies that substantial changes in chromosome number, arising from instances of chromosomal gains and losses, are recurring events in orthopterans that are associated with reproductive isolation and speciation, at least in some groups.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":"516-529"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143484575","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

Assessing the impact of pedigree attributes on the validity of quantitative genetic parameter estimates. 评估谱系属性对定量遗传参数估计有效性的影响。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf010

Walid Mawass, Emmanuel Milot

{"title":"Assessing the impact of pedigree attributes on the validity of quantitative genetic parameter estimates.","authors":"Walid Mawass, Emmanuel Milot","doi":"10.1093/jeb/voaf010","DOIUrl":"10.1093/jeb/voaf010","url":null,"abstract":"Investigating the evolution of complex traits in nature requires accurate assessment of their genetic basis. Quantitative genetic (QG) modeling is frequently applied to estimate the additive genetic variance (VA) in traits, combining phenotypic and pedigree data from a sample of individuals. Whether reconstructed from social links or molecular markers, empirical pedigrees differ in completeness, genealogical error rates, and other attributes that can impact QG estimation. Here we investigate this impact using human genealogical data for 6 French-Canadian (FC) populations originating from the same genetic founding source but differing in their pedigrees' attributes. First, we simulated phenotypic values along pedigrees and under different trait architectures and \"true\" parameter values (e.g., VA). Then we fitted mixed effects \"animal\" models to these simulated data, to assess how QG estimation was impacted by pedigree attributes. Our results show that pedigree size and depth were important determinants of the precision, but not accuracy, of genetic parameter estimates. In contrast, pedigree completeness and entropy, 2 attributes related to the density of genealogical links, were not clearly associated with the performance of parameter estimation. Noticeably, a slight increase in the genealogical error rate was sufficient to cause a detectable underestimation of VA. Including maternal genetic effects in the simulations led to a slight underestimation of VA with pedigrees of smaller size and depth. Despite originating from the same genetic source, the 6 pedigrees yielded wide variations in QG estimates under identical conditions. These findings highlight the importance of sensitivity analyses in pedigree-based genetic studies on natural populations.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":"439-456"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143191365","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

Predictable ecological dynamics over incredibly small spatial scales influence early-life phenotypes in a species with temperature-dependent sex determination. 在难以置信的小空间尺度上，可预测的生态动态影响着具有温度依赖性性别决定的物种的早期表型。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf011

Mariel Terebiznik, Jessica A Leivesley, Christopher B Edge, Eric Graham Nancekivell, Ronald J Brooks, Njal Rollinson

{"title":"Predictable ecological dynamics over incredibly small spatial scales influence early-life phenotypes in a species with temperature-dependent sex determination.","authors":"Mariel Terebiznik, Jessica A Leivesley, Christopher B Edge, Eric Graham Nancekivell, Ronald J Brooks, Njal Rollinson","doi":"10.1093/jeb/voaf011","DOIUrl":"10.1093/jeb/voaf011","url":null,"abstract":"Phenotype-environment associations in neonatal animals may arise in wild environments by virtue of ecological dynamics within the nest. Such dynamics may be of special importance to the evolution of temperature-dependent sex determination (TSD), an enigmatic trait that can be adaptive when the incubation temperatures that affect sexual differentiation also have differential effects on the fitness of the sexes. To infer the causal effects of the nest environment on fitness-relevant phenotypes, we apply structural equation modelling (SEM) to a 14-year dataset of 3085 individual embryos whose position in 179 wild snapping turtle nests could be estimated. We find that temperature has a positive effect on hatchling size, and that the same temperatures that predict hatchling size also predict the sex of hatchlings. Further, the probability that embryos develop as males is correlated with hatchling size in the wild, where across all environments, males are slightly and significantly larger than females at hatching. Our SEM reveals that the covariance between size and sex arises because of temperature effects on size, and because of a predictable covariance between egg placement within the nest coupled with maternal effects on egg size. Finally, embryos deep in the nest have a high probability of becoming male even in the hottest years. Our study suggests ecological dynamics occurring within the nest are an interesting and underappreciated source of phenotypic variation. Our study also supports the view that TSD is an adaptive trait, rather than a neutral trait, by showing consistent associations between phenotype and temperature in wild nests of a TSD reptile.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":"457-466"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143374772","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

Altruism or selfishness: floral behaviour based on genetic relatedness with neighbouring plants. 利他主义或自私：基于与邻近植物遗传关系的花的行为。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf015

Haruto Tomizuka, Akira Yamawo, Yuuya Tachiki

引用次数: 0

The coevolution of parasite virulence and host investment in constitutive and induced defence. 寄生虫毒力的共同进化，以及宿主在本构防御和诱导防御中的投资。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf014

Alex Best, Sarah Guth, Mike Boots

{"title":"The coevolution of parasite virulence and host investment in constitutive and induced defence.","authors":"Alex Best, Sarah Guth, Mike Boots","doi":"10.1093/jeb/voaf014","DOIUrl":"10.1093/jeb/voaf014","url":null,"abstract":"Given their ubiquity in nature and their importance to human and agricultural health, it is important to gain a better understanding of the drivers of the evolution of infectious disease. Across vertebrates, invertebrates, and plants, defence mechanisms can be expressed either constitutively (always present and costly) or induced (activated and potentially costly only upon infection). Theory has shown that this distinction has important implications to the evolution of defence due to differences in their impact on both individual fitness and the feedback of the population-level epidemiological outcomes such as prevalence. However, despite the fact that pathogens evolve in response to host immunity and that this can have important implications to the evolution of host defence, the implications of coevolution on constitutive and induced immunity have not been examined. Here we show theoretically how and when incorporating host-parasite coevolution between host defences and parasite growth strategies plays an important role in determining the optimum outcome. A key result is that whether the parasite affects host reproduction critically impacts host-parasite coevolution; when the parasite impacts fecundity, selection on the host is largely geared towards minimizing reproductive costs, through reducing investment in reproductively costly constitutive defence when the parasite prevalence is low, but also by investing in immunity to avoid infection or recover when prevalence is high. Our work emphasizes the importance of coevolution and epidemiological feedbacks to the coevolution of hosts and parasites and provides testable predictions of the determinants of constitutive verses induced defence.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":"481-491"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617717","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

Unexpected absence of a multiple-queen supergene haplotype from supercolonial populations of Formica ants. 超级蚁群中意外缺失多后超基因单倍型。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf023

German Lagunas-Robles, Zul Alam, Alan Brelsford

{"title":"Unexpected absence of a multiple-queen supergene haplotype from supercolonial populations of Formica ants.","authors":"German Lagunas-Robles, Zul Alam, Alan Brelsford","doi":"10.1093/jeb/voaf023","DOIUrl":"10.1093/jeb/voaf023","url":null,"abstract":"Ants exhibit many complex social organization strategies. One particularly elaborate strategy is supercoloniality, in which a colony consists of many interconnected nests (= polydomy) with many queens (= polygyny). In many species of Formica ants, an ancient queen number supergene determines whether a colony is monogyne (= headed by single queen) or polygyne. The presence of the rearranged P haplotype typically leads colonies to be polygyne. However, the presence and function of this supergene polymorphism have not been examined in supercolonial populations. Here, we use genomic data from species in the Formica rufa group to determine whether the P haplotype leads to supercoloniality. In a Formica paralugubris population, we find that nests are polygyne despite the absence of the P haplotype in workers. We find spatial genetic ancestry patterns in nests consistent with supercolonial organization. Additionally, we find that the P haplotype is also absent in workers from supercolonial Formica aquilonia and Formica aquilonia × polyctena hybrid populations but is present in some Formica polyctena workers. We conclude that the P haplotype is not necessary for supercoloniality in the Formica rufa group, despite its long-standing association with non-supercolonial polygyny across the Formica genus.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":"543-553"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12009684/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143634857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Winner-loser effects on life history traits. 输赢对生活史特征的影响。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf021

Lauren M Harrison, Oliver P Stuart, Michael D Jennions

{"title":"Winner-loser effects on life history traits.","authors":"Lauren M Harrison, Oliver P Stuart, Michael D Jennions","doi":"10.1093/jeb/voaf021","DOIUrl":"10.1093/jeb/voaf021","url":null,"abstract":"Ageing of adult males could be accelerated by both high mating/reproductive effort and fighting for mates. Testing the relative importance of these factors is challenging, however, because males that win fights also tend to have more mates. We used a 2 × 2 experimental design to test how a prolonged (9 week) period of either winning or losing fights, and either high or low reproductive effort (manipulating by varying access to females) interacts to affect male ageing and future reproduction allocation in the mosquitofish, Gambusia holbrooki. We measured telomere length and several life-history traits, including mating effort and ejaculates (sperm count and velocity). After 9 weeks, there were significant differences between winners and losers in their mating effort but not in their ejaculates. Males with a higher past reproductive effort (i.e., access to females) had significantly lower current mating effort and grew more slowly. Males with a higher past reproductive effort also had slower swimming sperm, but only if they were smaller than average in body size. Surprisingly, neither males with a higher past reproductive effort nor males that repeatedly lost fights had shorter telomeres. Our findings show that past social dynamics affect how males allocate resources to reproduction and somatic maintenance.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":"530-542"},"PeriodicalIF":2.1,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143617719","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

Inbreeding depression in male reproductive traits. 雄性生殖特征的近亲繁殖抑制。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-19 DOI: 10.1093/jeb/voaf017

Ramakrishnan Vasudeva, Kris Sales, Matthew J G Gage, David J Hosken

引用次数: 0

Experimental tests on the evolution of sex and recombination and their adaptive significance. 性别和重组进化的实验检验及其适应性意义。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-17 DOI: 10.1093/jeb/voaf028

Tom Parée, Henrique Teotónio

{"title":"Experimental tests on the evolution of sex and recombination and their adaptive significance.","authors":"Tom Parée, Henrique Teotónio","doi":"10.1093/jeb/voaf028","DOIUrl":"https://doi.org/10.1093/jeb/voaf028","url":null,"abstract":"Sex and recombination generate genetic variation and facilitate adapta- tion by reducing selective interference, but they can also disrupt allelic combinations maintained by selection. We here review experimental evolution studies on the adap- tive significance of sex and recombination in constant environments, emphasizing insights gained from population genomic data. We discuss evidence showing how meiotic segregation (sex) and crossing-over (recombination) disrupt negative disequi- librium between alleles within and between loci and as a consequence increase the fitness variance of populations and enhance selection efficacy. While sexual reproduc- tion can facilitate adaptation when compared to asexual reproduction, the advantages of high rates of sex and recombination under facultative sexual reproduction or facul- tative outcrossing and self-fertilization are less clear, especially when overdominance and epistasis cause segregation and recombination loads. We further discuss the chal- lenges of measuring interference between selected alleles, particularly under polygenic adaptation and segregation of multiple modifiers of recombination, and propose direc- tions for future research. Our discussion underscores the nuanced role of sex and recombination in adaptation, shaped by a balance between increased genetic variation and the disruption of beneficial allele combinations.","PeriodicalId":50198,"journal":{"name":"Journal of Evolutionary Biology","volume":" ","pages":""},"PeriodicalIF":2.1,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144052071","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

On the origins and evolution of apoptosis: the predator‒mitochondrial prey hypothesis. 关于细胞凋亡的起源和进化：捕食者-线粒体猎物假说。

IF 2.1 3区生物学

Journal of Evolutionary Biology Pub Date : 2025-04-04 DOI: 10.1093/jeb/voaf039

Urszula Zielenkiewicz, Vandana Kaushal, Szymon Kaczanowski

引用次数: 0