Evolution & Development最新文献

{"title":"Recruitment of Sugar Transport and Scent Volatile Genes for Prey Attraction in the Nectar Spoon of Heliamphora tatei","authors":"Sukuan Liu,&nbsp;Stacey D. Smith","doi":"10.1111/ede.70009","DOIUrl":"https://doi.org/10.1111/ede.70009","url":null,"abstract":"<p>Prey attraction is an integral component of the carnivorous syndrome, yet its molecular adaptations have remained largely unexplored. Our study utilized tissue-specific transcriptomic data from the South American marsh pitcher plant, <i>Heliamphora tatei</i>, to explore the molecular and developmental basis of prey attraction. Carnivorous plants often present specialized structures associated with prey attraction and in <i>Heliamphora</i>, that function is carried out by the nectar spoon, a colorful extension of the top of the pitcher that is densely covered in nectaries. Through comparisons of gene expression in the nectar spoon with the rest of the pitcher, we identified a suite of differentially expressed genes that likely contribute to prey attraction, including enzymes involved in volatile synthesis and sugar transporters. We found that one lineage of sugar transporters, the 14a clade of <i>SWEET</i>s (Sugars Will Eventually Be Exported Transporters), is highly upregulated in the nectar spoon and has evolved more rapidly in Sarraceniaceae, consistent with specialization for nectar transport as part of prey attraction. Among the genes related to volatile production, we found several enzymes best known for their role in floral scent. These results suggest that, similar to prey digestion, ancient genes are repurposed for novel functions during the transition to carnivory and may facilitate the repeated convergent origins of carnivory across angiosperms.</p>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ede.70009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144126080","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}

{"title":"The Evolution of Skull Shape in Boana faber Clade: Unraveling Heterochrony's Influence","authors":"Daniel de Abreu e Melo-Moreira,&nbsp;Roberta Azeredo Murta-Fonseca,&nbsp;Alessandra Silveira Machado,&nbsp;Ricardo Tadeu Lopes,&nbsp;Luciana Barreto Nascimento","doi":"10.1111/ede.70008","DOIUrl":"https://doi.org/10.1111/ede.70008","url":null,"abstract":"<p>Variation in shape and size within a lineage, driven by developmental processes, plays a key role in diversification. Here, we explore the effects of allometry and heterochrony on the skull shape evolution during the post-metamorphic period of species within the <i>Boana faber</i> clade, which vary considerably in body size. We analyzed 61 skulls of specimens belonging to eight species of the <i>Boana faber</i> clade, in addition to two outgroups, through 2D geometric morphometric analyses taken from CT-Scan images. Our results demonstrated that skull shape is considerably impacted by the size, represented by centroid size, and this effect can be observed from ontogenetic and evolutionary perspectives. In this way, we accessed the ontogenetic trajectories of analysed species and, in light of the phylogenetic hypothesis of the clade, we discussed the observed variation based on the concept of heterochrony, suggesting that a peramorphic pattern has evolved in the group.</p>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ede.70008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939545","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}

{"title":"Plasticity as a Sign of Developmental Bias in the Evolution of Gene Regulatory Networks","authors":"Carlos Espinosa-Soto","doi":"10.1111/ede.70007","DOIUrl":"https://doi.org/10.1111/ede.70007","url":null,"abstract":"<div>\u0000 \u0000 <p>Phenotypic plasticity is an organism's ability to produce a different phenotype in response to nongenetic perturbations such as environmental disturbances. Beneficial phenotypic plasticity can be important in evolution. After an environmental disturbance, it can delay extinction giving opportunity to the appearance of beneficial mutations. In addition, plasticity may also be one of the factors that define the course that evolution takes, for example, through genetic assimilation. This is a process in which a phenotype that initially appears as a plastic response becomes under genetic control. In the end, development of such a phenotype does not require the factor that originally induced it. Here, I use a model of the evolution of gene regulatory networks to study the range of conditions that allow the association between plasticity and the course of evolution. I assayed conditions like the difference between ancestral and optimum phenotypes, the difficulty to build the optimum phenotype, the complexity of the developmental system, mutation rate, strength of plasticity limitations, fitness advantage of the optima, and the similarity between the initially induced phenotype and the optimum. I found that populations that yield a beneficial phenotype through plasticity most often evolve a similar genetically determined phenotype under all the conditions that I assayed. I also identified conditions that facilitate evolution through genetic assimilation. Notwithstanding, even under less favorable circumstances, this form of evolution still confers easier access to a new genetically determined optimum.</p></div>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143845974","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}

{"title":"Does Covariation Between Cranial and Pelvic Shapes Alleviate the Obstetric Dilemma? Insights From a Brazilian Sample","authors":"Maria Rita Guedes Carvalho,&nbsp;Mercedes Okumura","doi":"10.1111/ede.70005","DOIUrl":"https://doi.org/10.1111/ede.70005","url":null,"abstract":"<div>\u0000 \u0000 <p>Cranial and pelvic bones could have evolved in response to each other during human evolutionary history due to the increasingly tight fit between the baby's head and the mother's pelvis during delivery. A recently identified covariation pattern between these sets of bones and stature has shown important evidence of such an evolutionary trade-off, alleviating the chances of obstructed labor. Here, we tested the validity of this covariation pattern in a different sample, from a population with known high rates of C-section. 98 computed tomographies were used to perform statistical covariation tests (two-block partial least squares and ANOVA Procrustes) between pelvic and cranial shape, as well as other anthropometric variables, like stature, body mass, and BMI. Additionally, measurements were taken from cranial and pelvic bones for classic morphometric analyses. The results have shown an important sexual dimorphism in pelvic bones' shape but no correlation between them and stature or cranial size or shape. In terms of size, the sexual dimorphism on the true pelvis was also noticeable. The fact that the results obtained from this sample do not corroborate previous findings suggests the absence of this pattern in some populations. It also suggests that the current ideal rates of C-sections proposed by the World Health Organization might not be considering the existing diversity among human populations that may account for variable levels of difficulties in birth.</p></div>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143749422","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}

{"title":"Ontogenetic Mechanisms of Differentiation in Two Salvia Species With Different Pollinators","authors":"Agustín Davies,&nbsp;Santiago Benitez-Vieyra","doi":"10.1111/ede.70006","DOIUrl":"https://doi.org/10.1111/ede.70006","url":null,"abstract":"<div>\u0000 \u0000 <p>Shifts between pollinators are a major driver in the evolution and diversification of angiosperms and often involve major changes in flower morphology. These morphological differences typically originate during development, highlighting the importance of integrating ecological and developmental studies. Corolla tube length, in particular, is a key trait in specialized plant-pollinator interactions. Here, we compared flower development in two closely related <i>Salvia</i> species with contrasting corolla tube lengths: <i>Salvia guaranitica</i>, pollinated by hummingbirds, and <i>Salvia stachydifolia</i>, primarily pollinated by bees. We characterized developmental trajectories, floral development duration, and patterns of cell growth and proliferation. Both species shared similar allometric trajectories, differing only in their prolongation, suggesting ontogenetic scaling. However, <i>S. guaranitica</i> exhibited longer and faster corolla tube growth, resulting in a larger final size compared to <i>S. stachydifolia</i>. Corolla tube growth was linked to cell proliferation during the early stages of bud development and rapid anisotropic cell elongation in later stages. Additionally, we observed differences in anisotropic growth rates across basal, middle, and distal regions of the corolla tube. These findings suggest that shifts between pollination syndromes in <i>Salvia</i> species may occur without major changes to basic developmental patterns, but through ontogenetic scaling accompanied by heterochronic changes.</p></div>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 2","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143717468","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}

{"title":"A Conserved Somatic Sex Determination Cascade Instructs Trait-Specific Sexual Dimorphism in Horned Dung Beetles","authors":"London C. Mitchell,&nbsp;Armin P. Moczek,&nbsp;Erica M. Nadolski","doi":"10.1111/ede.70004","DOIUrl":"10.1111/ede.70004","url":null,"abstract":"<p>Sex-specific trait expression represents a striking dimension of morphological variation within and across species. The mechanisms instructing sex-specific organ development have been well studied in a small number of insect model systems, suggesting striking conservation in some parts of the somatic sex determination pathway while hinting at possible evolutionary lability in others. However, further resolution of this phenomenon necessitates additional taxon sampling, particularly in groups in which sexual dimorphisms have undergone significant elaboration and diversification. Here, we functionally investigate the somatic sex determination pathway in the gazelle dung beetle <i>Digitonthophagus gazella</i>, an emerging model system in the study of the development and evolution of sexual dimorphisms. We find that RNA interference (RNAi) targeting <i>transformer (tra)</i> caused chromosomal females to develop morphological traits largely indistinguishable from those normally only observed in males, and that <i>tra</i>^RNAi is sufficient to induce splicing of the normally male-specific isoform of <i>doublesex</i> in chromosomal females, while leaving males unaffected. Further, <i>intersex</i>^RNAi was found to phenocopy previously described RNAi phenotypes of <i>doublesex</i> in female but not male beetles. These findings match predictions derived from models of the sex determination cascade as developed largely through studies in <i>Drosophila melanogaster</i>. In contrast, efforts to target <i>transformer2</i> via RNAi resulted in high juvenile mortality but did not appear to affect <i>doublesex</i> splicing, whereas RNAi targeting <i>Sex-lethal</i> and two putative orthologs of <i>hermaphrodite</i> yielded no obvious phenotypic modifications in either males or females, raising the possibility that the function of a subset of sex determination genes may be derived in select Diptera and thus nonrepresentative of their roles in other holometabolous orders. Our results help illuminate how the differential evolutionary lability of the somatic sex determination pathway has contributed to the extraordinary morphological diversification of sex-specific trait expression found in nature.</p>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11923317/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143662938","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}

{"title":"Genetic Mapping of Orofacial Traits Reveals a Single Genomic Region Associated With Differences in Multiple Parameters of Jaw Size Between Astyanax mexicanus Surface and Cavefish.","authors":"Amanda K Powers, Alleigh Amaismeier, Kathryn Thiel, William Anyonge, Suzanne E McGaugh, Tyler E Boggs, Clifford J Tabin, Joshua B Gross","doi":"10.1111/ede.70003","DOIUrl":"https://doi.org/10.1111/ede.70003","url":null,"abstract":"<p><p>The regulation of bone size is a poorly understood and complex developmental process. Evolutionary models can enable insight through interrogation of the developmental and molecular underpinnings of natural variation in bone size and shape. Here, we examine the Mexican tetra (Astyanax mexicanus), a species of teleost fish comprising of an extant river-dwelling surface fish and obligate cave-dwelling fish. These divergent morphs have evolved for thousands of years in drastically different habitats, which have led to diverse phenotypic differences. Among many craniofacial aberrations, cavefish harbor a wider gape, an underbite, and larger jaws compared to surface-dwelling morphs. Morphotypes are inter-fertile, allowing quantitative genetic analyses in F₂ pedigrees derived from surface × cavefish crosses. Here, we used quantitative trait locus (QTL) analysis to determine the genetic basis of jaw size. Strikingly, we discovered a single genomic region associated with several jaw size metrics. Future work identifying genetic lesions that explain differences in jaw development will provide new insight to the mechanisms driving bone size differences across vertebrate taxa.</p>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":" ","pages":"e70003"},"PeriodicalIF":2.6,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143457413","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}

{"title":"Developmental Plasticity and the Evolutionary Rescue of a Colonizing Mite","authors":"Kathryn A. Stewart,&nbsp;Isabel M. Smallegange","doi":"10.1111/ede.70002","DOIUrl":"https://doi.org/10.1111/ede.70002","url":null,"abstract":"<p>Plasticity, especially in small newly founded populations, can expose genetic variation to selection during the evolutionary rescue of populations, allowing individuals to achieve a phenotype with which they can survive. However, developmental plasticity can also enable organisms to accommodate perturbations, generating new phenotypic variation. We explored whether, at the start of a colonization event, phenotype dynamics follow a “selective” process in which plasticity fuels evolutionary rescue or whether they are due to developmental plasticity in a “generative” process. We investigated this using the bulb mite <i>Rhizoglyphus robini</i>, which expresses a facultative, juvenile dispersal phenotype (deutonymph) under unfavorable conditions and shows alternative adult male phenotypes: competitive fighters or benign scramblers that are expressed to mitigate food stress and which have higher levels of genetic heterozygosity than fighters. Mimicking colonization dynamics, we founded small, medium and large populations from deutonymphs on low or high food to test if scramblers were expressed earliest postcolonization within (i) the <i>smallest</i> founder populations to alleviate inbreeding (selective hypothesis), or (ii) the <i>largest</i> founder populations as a direct consequence of food stress is highest due to higher food competition (generative hypothesis). In line with the generative hypothesis under both food environments, scramblers were expressed at the earliest in the largest founder populations, which also tended to show the lowest growth at the start of the experiment and had the lowest ultimate population size. Our findings highlight the necessity to seek explanations of how developmental pathways likely influence evolutionary rescue patterns, starting with how resource limitation (stress) shapes adaptive responses during colonization.</p>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ede.70002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143431241","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}

{"title":"Exceptionally Preserved Setae: A Possible Morphological Synapomorphy of Cambrian Lophotrochozoans","authors":"Yue Liang,&nbsp;Timothy P. Topper,&nbsp;Lars E. Holmer,&nbsp;Yazhou Hu,&nbsp;Fan Liu,&nbsp;Zhifei Zhang","doi":"10.1111/ede.70001","DOIUrl":"10.1111/ede.70001","url":null,"abstract":"<p>Cambrian Lagerstätten yield exceptionally preserved fossils that have greatly improved our understanding of the origin and evolution of animal groups. Brachiopoda, a phylum of bivalved marine invertebrates nested firmly within the lophotrochozoan protostomes, are widely recovered in such Lagerstätten. The marginal chitinous setae (or chaetae) of brachiopods are the most commonly described soft tissue and have been interpreted as performing a defensive and/or sensory role. Despite their relatively common appearance in Cambrian Lagerstätten, the origin, function, and evolution of setae in the Brachiopoda is poorly known. Here, we document exquisitely preserved setal structures from South China and Laurentia paleocontinents giving new insights into their formation, microstructure and preservation mode. New setae typically make their appearance within the follicle of a neighbouring older seta and then branches off laterally forming its own follicle. Setal microstructure is likely to be composed of many canals, highly comparable to setae of their recent counterparts. Moreover, setae recovered from these palaeo-continents present different preservation: aside from the normal preservation of iron oxides and carbonaceous ingredients, some compositions of calcium are also detected in this originally chitinous organization. Investigating the evolutionary origins of chitinous setae, a specialized type found notably in lophotrochozoans such as brachiopods and annelids, reveals its presence in early Cambrian stem groups. This character likely serves as a morphological synapomorphy in lophotrochozoan evolution. However, the dearth of morpho-ultrastructure and comparative studies in Cambrian fossils presents a challenge in fully understanding this evolutionary development.</p>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ede.70001","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143079086","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}

{"title":"Complex and Dynamic Gene-by-Age and Gene-by-Environment Interactions Underlie Functional Morphological Variation in Adaptive Divergence in Arctic Charr (Salvelinus alpinus)","authors":"Christine L. Ouellet-Fagg,&nbsp;Anne A. Easton,&nbsp;Kevin J. Parsons,&nbsp;Roy G. Danzmann,&nbsp;Moira M. Ferguson","doi":"10.1111/ede.70000","DOIUrl":"10.1111/ede.70000","url":null,"abstract":"<p>The evolution of adaptive phenotypic divergence requires heritable genetic variation. However, it is underappreciated that trait heritability is molded by developmental processes interacting with the environment. We hypothesized that the genetic architecture of divergent functional traits was dependent on age and foraging environment. Thus, we induced plasticity in full-sib families of Arctic charr (<i>Salvelinus alpinus</i>) morphs from two Icelandic lakes by mimicking prey variation in the wild. We characterized variation in body shape and size at two ages and investigated their genetic architecture with quantitative trait locus (QTL) analysis. Age had a greater effect on body shape than diet in most families, suggesting that development strongly influences phenotypic variation available for selection. Consistent with our hypothesis, multiple QTL were detected for all traits and their location depended on age and diet. Many of the genome-wide QTL were located within a subset of duplicated chromosomal regions suggesting that ancestral whole genome duplication events have played a role in the genetic control of functional morphological variation in the species. Moreover, the detection of two body shape QTL after controlling for the effects of age provides additional evidence for genetic variation in the plastic response of morphological traits to environmental variation. Thus, functional morphological traits involved in phenotypic divergence are molded by complex genetic interactions with development and environment.</p>","PeriodicalId":12083,"journal":{"name":"Evolution & Development","volume":"27 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11670044/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142893367","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}