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Kinship clustering within an ecologically diverse killer whale metapopulation. 生态多样化虎鲸元种群中的亲属聚类。
IF 3.1 2区 生物学
Heredity Pub Date : 2025-01-20 DOI: 10.1038/s41437-024-00740-y
Chérine D Baumgartner, Eve Jourdain, Sebastian Bonhoeffer, Katrine Borgå, Mads P Heide-Jørgensen, Richard Karoliussen, Jan T Laine, Aqqalu Rosing-Asvid, Anders Ruus, Sara B Tavares, Fernando Ugarte, Filipa I P Samarra, Andrew D Foote
{"title":"Kinship clustering within an ecologically diverse killer whale metapopulation.","authors":"Chérine D Baumgartner, Eve Jourdain, Sebastian Bonhoeffer, Katrine Borgå, Mads P Heide-Jørgensen, Richard Karoliussen, Jan T Laine, Aqqalu Rosing-Asvid, Anders Ruus, Sara B Tavares, Fernando Ugarte, Filipa I P Samarra, Andrew D Foote","doi":"10.1038/s41437-024-00740-y","DOIUrl":"https://doi.org/10.1038/s41437-024-00740-y","url":null,"abstract":"<p><p>Metapopulation dynamics can be shaped by foraging ecology, and thus be sensitive to shifts in prey availability. Genotyping 204 North Atlantic killer whales at 1346 loci, we investigated whether spatio-temporal population structuring is linked to prey type and distribution. Using population-based methods (reflecting evolutionary means), we report a widespread metapopulation connected across ecological groups based upon nuclear genome SNPs, yet spatial structuring based upon mitogenome haplotypes. These contrasting patterns of markers with maternal and biparental inheritance are consistent with matrilineal site fidelity and philopatry, and male-mediated gene flow among demes. Connectivity between fish-eating and 'mixed-diet' (eating both fish and mammal prey) killer whales, marks a deviation within a species renowned for its marked structure associated with ecology. However, relatedness estimates suggest distinct spatial clusters, and heterogeneity in recent gene flow between them. The contrasting patterns between inference of structure and inference of relatedness suggest that gene flow has been partially restricted over the past two to three generations (50-70 years). This coincides with the collapse of North Atlantic herring stocks in the late 1960s and the subsequent cessation of their seasonal connectivity. Statistically significant association between diet types and assignment of Icelandic killer whales to relatedness-based clusters indicated limited gene flow was maintained through Icelandic 'mixed-diet' whales when herring-mediated connectivity was diminished. Thus, conservation of dietary variation within this metapopulation is critical to ensure genetic health. Our study highlights the role of resource dynamics and foraging ecology in shaping population structure and emphasises the need for transnational management of this widespread migratory species and its prey.</p>","PeriodicalId":12991,"journal":{"name":"Heredity","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004594","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Incorporating spatial and genetic competition into breeding pipelines with the R package gencomp. 利用R包gencomp将空间和遗传竞争纳入育种管道。
IF 3.1 2区 生物学
Heredity Pub Date : 2025-01-16 DOI: 10.1038/s41437-024-00743-9
Saulo F S Chaves, Filipe M Ferreira, Getulio C Ferreira, Salvador A Gezan, Kaio Olimpio G Dias
{"title":"Incorporating spatial and genetic competition into breeding pipelines with the R package gencomp.","authors":"Saulo F S Chaves, Filipe M Ferreira, Getulio C Ferreira, Salvador A Gezan, Kaio Olimpio G Dias","doi":"10.1038/s41437-024-00743-9","DOIUrl":"https://doi.org/10.1038/s41437-024-00743-9","url":null,"abstract":"<p><p>Genetic competition can obscure the true merit of selection candidates, potentially leading to altered genotype rankings and a divergence between expected and actual genetic gains. Despite a wealth of literature on genetic competition in plant and animal breeding, the separation of genetic values into direct genetic effects (DGE, related to a genotype's merit) and indirect genetic effects (IGE, related to the effects of a genotype's alleles on its neighbor's phenotype) in linear mixed models is often overlooked, likely due to the complexity involved. To address this, we introduce gencomp, a new R package designed to simplify the use of (spatial-) genetic competition models in crop and tree breeding routines. gencomp includes functions for constructing the genetic competition matrix, fitting (spatial-) genetic competition models via the variance-component approach, and extracting key results such as variance components, heritabilities, competition classes, and total genetic values. For tree breeding, gencomp also calculates the merit of different clonal mixtures using the estimated DGE and IGE of the selection candidates. In this paper, we first present the theoretical foundation of the methods implemented in the package. We then demonstrate the use of gencomp with two datasets: one simulated from a Eucalyptus spp. trial and a real potato dataset. We used both datasets to demonstrate the influence of genetic competition in variance component estimates, heritabilities and selection. Despite the dependency on ASReml-R, a paid resource, gencomp is a user-friendly tool that can popularize genetic competition models, contributing to more informed decision-making in plant breeding.</p>","PeriodicalId":12991,"journal":{"name":"Heredity","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143004592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 evolution of preferred male traits, female preference and the G matrix: "Toto, I've a feeling we're not in Kansas anymore". 男性偏好特征的进化,女性偏好和G矩阵:“托托,我觉得我们已经不在堪萨斯了”。
IF 3.1 2区 生物学
Heredity Pub Date : 2025-01-12 DOI: 10.1038/s41437-024-00744-8
Derek A Roff
{"title":"The evolution of preferred male traits, female preference and the G matrix: \"Toto, I've a feeling we're not in Kansas anymore\".","authors":"Derek A Roff","doi":"10.1038/s41437-024-00744-8","DOIUrl":"https://doi.org/10.1038/s41437-024-00744-8","url":null,"abstract":"<p><p>Female preference exerts selection on male traits. How such preferences affect male traits, how female preferences change and the genetic correlation between male traits and female preference were examined by an experiment in which females were either mated to males they preferred (S lines) or to males chosen at random from the population (R lines). Female preference was predicted to increase the time spent calling by males. Thirteen other song components were measured. Preference for individual traits was greatest for time spent calling(CALL), volume(VOL) and chirp rate(CHIRP) but the major contributors in the multivariate function were CALL and CHIRP, the univariate influence of VOL arising from correlations to these traits. Estimation of β, the standardized selection differential, for CALL resulting from female preference showed that it was under strong direct selection. However, contrary to prediction, CALL did not change over the course of the experiment whereas VOL, CHIRP and other song components did. Simulation of the experiment using the estimated G matrix showed that lack of change in CALL resulted from indirect genetic effects negating direct effects. Changes in song components were largely due to indirect effects. This experiment showed that female preference may exert strong selection on traits but how they respond to such selection will depend greatly upon the G matrix. As predicted, female preference declined in the R lines. The genetic correlations between preference and preferred traits did not decline significantly more in the R lines, suggesting correlations resulted from both linkage disequilibrium and pleiotropy.</p>","PeriodicalId":12991,"journal":{"name":"Heredity","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142970578","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Maternal effects in the model system Daphnia: the ecological past meets the epigenetic future. 水蚤模型系统中的母系效应:生态学的过去与表观遗传的未来相遇。
IF 3.1 2区 生物学
Heredity Pub Date : 2025-01-08 DOI: 10.1038/s41437-024-00742-w
Trenton C Agrelius, Jeffry L Dudycha
{"title":"Maternal effects in the model system Daphnia: the ecological past meets the epigenetic future.","authors":"Trenton C Agrelius, Jeffry L Dudycha","doi":"10.1038/s41437-024-00742-w","DOIUrl":"https://doi.org/10.1038/s41437-024-00742-w","url":null,"abstract":"<p><p>Maternal effects have been shown to play influential roles in many evolutionary and ecological processes. However, understanding how environmental stimuli induce within-generation responses that transverse across generations remains elusive, particularly when attempting to segregate confounding effects from offspring genotypes. This review synthesizes literature regarding resource- and predation-driven maternal effects in the model system Daphnia, detailing how the maternal generation responds to the environmental stimuli and the maternal effects seen in the offspring generation(s). Our goal is to demonstrate the value of Daphnia as a model system by showing how general principles of maternal effects emerge from studies on this system. By integrating the results across different types of biotic drivers of maternal effects, we identified broadly applicable shared characteristics: 1. Many, but not all, maternal effects involve offspring size, influencing resistance to starvation, infection, predation, and toxins. 2. Maternal effects manifest more strongly when the offspring's environment is poor. 3. Strong within-generation responses are typically associated with strong across-generation responses. 4. The timing of the maternal stress matters and can raise or lower the magnitude of the effect on the offspring's phenotype. 5. Embryonic exposure effects could be mistaken for maternal effects. We outline questions to prioritize for future research and discuss the possibilities for integration of ecologically relevant studies of maternal effects in natural populations with the molecular mechanisms that make them possible, specifically by addressing genetic variation and incorporating information on epigenetics. These small crustaceans can unravel how and why non-genetic information gets passed to future generations.</p>","PeriodicalId":12991,"journal":{"name":"Heredity","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2025-01-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142948038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Infection pattern of male-killing viruses alters phenotypes in the tea tortrix moth Homona magnanima. 雄性杀伤病毒的感染模式改变了茶蛾的表型。
IF 3.1 2区 生物学
Heredity Pub Date : 2024-12-26 DOI: 10.1038/s41437-024-00741-x
Takumi Takamatsu, Hiroshi Arai, Yoshiyuki Itoh, Takuma Kozono, Chien-Fu Wu, Kentaro Kitaura, Hiromitsu Moriyama, Maki N Inoue
{"title":"Infection pattern of male-killing viruses alters phenotypes in the tea tortrix moth Homona magnanima.","authors":"Takumi Takamatsu, Hiroshi Arai, Yoshiyuki Itoh, Takuma Kozono, Chien-Fu Wu, Kentaro Kitaura, Hiromitsu Moriyama, Maki N Inoue","doi":"10.1038/s41437-024-00741-x","DOIUrl":"https://doi.org/10.1038/s41437-024-00741-x","url":null,"abstract":"<p><p>Male-killing is a microbe-induced reproductive manipulation in invertebrates whereby male hosts are eliminated during development. In the tea tortrix moth Homona magnanima, Osugoroshi viruses 1‒3 (OGVs), belonging to Partitiviridae induce male-killing. The infection patterns of OGVs are diverse; however, how the influence of these patterns of host phenotypes remains largely unknown. Using field-collected larvae, we established a OGV1 and OGV3 double-infection line, in addition to a triple-infection line, and examined the dsRNA segments, purified viral proteins, OGV density, and host phenotypes. PCR analysis demonstrated that the triple-infection line lost one dsRNA segment, whereas the double-infection line lost eight segments, including one RNA-dependent RNA polymerase (RdRp) gene. LC-MS analysis revealed three potential structural proteins in the OGVs. Males died at the larval stage in the triple-infection line and at the embryo-larval stage in the double-infection line of OGV1 and OGV3; the RNA load of female parents did not contribute to the developmental stage at which males died. These findings indicate that the pattern of viral infection, rather than viral RNA load transmitted from female parent, controls the stage of development at which male-killing occurs. Furthermore, the duration of the larval stage of the double-infection line was found to be significantly longer than that of the triple-infection line. The shorter duration of the larval stage of the triple-infection line could be advantageous over the double-infection line in maximizing transmission efficiency.</p>","PeriodicalId":12991,"journal":{"name":"Heredity","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142893728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Multigenerational hybridisation results in heterosis and facilitates adaptive introgression, with no evidence of outbreeding depression in a pair of marine gastropods 多代杂交产生杂种优势并促进适应性渐渗,在一对海洋腹足动物中没有证据表明远交抑制。
IF 3.1 2区 生物学
Heredity Pub Date : 2024-12-01 DOI: 10.1038/s41437-024-00736-8
Deanne Cummins, Michael S. Johnson, Joseph L. Tomkins, W. Jason Kennington
{"title":"Multigenerational hybridisation results in heterosis and facilitates adaptive introgression, with no evidence of outbreeding depression in a pair of marine gastropods","authors":"Deanne Cummins,&nbsp;Michael S. Johnson,&nbsp;Joseph L. Tomkins,&nbsp;W. Jason Kennington","doi":"10.1038/s41437-024-00736-8","DOIUrl":"10.1038/s41437-024-00736-8","url":null,"abstract":"Anthropogenic environmental changes continue to threaten species globally. For example, translocation of species has caused unintentional hybridisation, which has contributed to species declines. On the other hand, hybridisation can be used to increase the evolutionary potential of species vulnerable to rapid environmental change, although the benefits of mixing genetically divergent lineages do not come without risks to individual fitness and the long-term viability of populations. Here, we use a combination of genome-wide Single Nucleotide Polymorphism (SNP) markers, mitochondrial DNA sequencing and measurements of growth rate to determine the genetic consequences of hybridisation between two congeneric marine gastropods across 27 years (~18 generations). Multigeneration hybridisation resulted from the introduction of the intertidal periwinkle Bembicium vittatum (a direct developer) into the native range of its congener Bembicium auratum (a species with planktotrophic larval dispersal). Despite significant genetic divergence between the species, we found no direct evidence of outbreeding depression in the admixed population. Instead, we found evidence for heterosis, which dissipated over time. After an initial lag, the frequency of introduced B. vittatum alleles declined dramatically in the hybrid population. However, a few B. vittatum alleles (3.18%) increased significantly in frequency against the overall trend, providing evidence of adaptive introgression. In the context of hybridisation as a conservation management tool, our results provide some evidence of the potential benefits that can be gained, and suggest that the costs due to outbreeding depression can be small.","PeriodicalId":12991,"journal":{"name":"Heredity","volume":"134 1","pages":"75-85"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142768556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
A wide range of chromosome numbers result from unreduced gamete production in Brassica juncea × B. napus (AABC) interspecific hybrids. 甘蓝型油菜(Brassica juncea × B. napus, AABC)种间杂交种配子产量未减少导致染色体数目变化较大。
IF 3.1 2区 生物学
Heredity Pub Date : 2024-11-30 DOI: 10.1038/s41437-024-00738-6
Charles Addo Nyarko, Elvis Katche, Mariana Báez, Zhenling Lv, Annaliese S Mason
{"title":"A wide range of chromosome numbers result from unreduced gamete production in Brassica juncea × B. napus (AABC) interspecific hybrids.","authors":"Charles Addo Nyarko, Elvis Katche, Mariana Báez, Zhenling Lv, Annaliese S Mason","doi":"10.1038/s41437-024-00738-6","DOIUrl":"https://doi.org/10.1038/s41437-024-00738-6","url":null,"abstract":"<p><p>The establishment of successful interspecies hybrids requires restoration of a stable \"2n\" chromosome complement which can produce viable \"n\" gametes. This may occur (rarely) via recombination between non-homologous chromosomes, or more commonly is associated with a doubling of parental chromosome number to produce new homologous pairing partners in the hybrid. The production of unreduced \"2n\" gametes (gametes with the somatic chromosome number) may therefore be evolutionarily useful by serving as a key pathway for the formation of new polyploid hybrids, as might specific mechanisms permitting recombination between non-homologous chromosomes. Here, we investigated chromosome complements and fertility in third generation interspecific hybrids (AABC) resulting from a cross between allopolyploids Brassica juncea (AABB) × B. napus (AACC) followed by self-pollination for two generations. Chromosome numbers ranged from 2n = 48-74 in the experimental population (35 plants), with 9-16 B genome chromosomes and up to 4 copies of A genome chromosomes. Unreduced gamete production leading to a putative genome structure of approximately AAAABBCC was hence predicted to explain the high chromosome numbers observed. Additionally, the estimation of nuclei number in post-meiotic sporads revealed a higher frequency of unreduced gametes (0.04-5.21%) in the third generation AABC interspecific hybrids compared to the parental Brassica juncea (0.07%) and B. napus (0.13%). Our results suggest that unreduced gamete production in the subsequent generations following interspecific hybridization events may play a critical role in restoration of more stable, fertile chromosome complements.</p>","PeriodicalId":12991,"journal":{"name":"Heredity","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142768554","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Multi-population GWAS detects robust marker associations in a newly established six-rowed winter barley breeding program 多群体GWAS在新建立的六棱冬大麦育种计划中检测到强大的标记关联。
IF 3.1 2区 生物学
Heredity Pub Date : 2024-11-28 DOI: 10.1038/s41437-024-00733-x
Cathrine Kiel Skovbjerg, Pernille Sarup, Ellen Wahlström, Jens Due Jensen, Jihad Orabi, Lotte Olesen, Just Jensen, Ahmed Jahoor, Guillaume Ramstein
{"title":"Multi-population GWAS detects robust marker associations in a newly established six-rowed winter barley breeding program","authors":"Cathrine Kiel Skovbjerg,&nbsp;Pernille Sarup,&nbsp;Ellen Wahlström,&nbsp;Jens Due Jensen,&nbsp;Jihad Orabi,&nbsp;Lotte Olesen,&nbsp;Just Jensen,&nbsp;Ahmed Jahoor,&nbsp;Guillaume Ramstein","doi":"10.1038/s41437-024-00733-x","DOIUrl":"10.1038/s41437-024-00733-x","url":null,"abstract":"Genome-wide association study (GWAS) is a powerful tool for identifying marker-trait associations that can accelerate breeding progress. Yet, its power is typically constrained in newly established breeding programs where large phenotypic and genotypic datasets have not yet accumulated. Expanding the dataset by inclusion of data from well-established breeding programs with many years of phenotyping and genotyping can potentially address this problem. In this study we performed single- and multi-population GWAS on heading date and lodging in four barley breeding populations with varying combinations of row-type and growth habit. Focusing on a recently established 6-rowed winter (6RW) barley population, single-population GWAS hardly resulted in any significant associations. Nevertheless, the combination of the 6RW target population with other populations in multi-population GWAS detected four and five robust candidate quantitative trait loci for heading date and lodging, respectively. Of these, three remained undetected when analysing the combined populations individually. Further, multi-population GWAS detected markers capturing a larger proportion of genetic variance in 6RW. For multi-population GWAS, we compared the findings of a univariate model (MP1) with a multivariate model (MP2). While both models surpassed single-population GWAS in power, MP2 offered a significant advantage by having more realistic assumptions while pointing towards robust marker-trait associations across populations. Additionally, comparisons of GWAS findings for MP2 and single-population GWAS allowed identification of population-specific loci. In conclusion, our study presents a promising approach to kick-start genomics-based breeding in newly established breeding populations.","PeriodicalId":12991,"journal":{"name":"Heredity","volume":"134 1","pages":"33-48"},"PeriodicalIF":3.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41437-024-00733-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
The genetic origins of species boundaries at subtropical and temperate ecoregions in the North American racers (Coluber constrictor). 北美大蟒蛇在亚热带和温带生态区物种边界的遗传起源。
IF 3.1 2区 生物学
Heredity Pub Date : 2024-11-28 DOI: 10.1038/s41437-024-00737-7
Frank T Burbrink, Edward A Myers
{"title":"The genetic origins of species boundaries at subtropical and temperate ecoregions in the North American racers (Coluber constrictor).","authors":"Frank T Burbrink, Edward A Myers","doi":"10.1038/s41437-024-00737-7","DOIUrl":"https://doi.org/10.1038/s41437-024-00737-7","url":null,"abstract":"<p><p>Phylogeographically structured lineages are a common outcome of range-wide population genetic studies. In the southeastern United States, disconnection between populations found at the intersection of the southeastern coastal plains of peninsular Florida and the southeastern plains of the adjacent continent is readily apparent among many plants and animals. However, the timing and maintenance of species boundaries between these distinctly different subtropical and temperate regions remains unknown for all organisms studied there. Using genome-scale data, we examine the timing of origins, gene flow, and the movement of genes under selection in unique ecoregions within the North American racers (Coluber constrictor). Isolation-migration models along with tests of genome-wide selection, locus-environment associations, and spatial and genomic clines demonstrate that two unrecognized species are present and are in contact at the boundary of these two ecoregions. We show that selection at several loci associated with unique environments have maintained species boundaries despite constant levels of gene flow between these lineages over thousands of generations. This research provides a new avenue of research to examine speciation processes in poorly studied biodiversity hotspots.</p>","PeriodicalId":12991,"journal":{"name":"Heredity","volume":" ","pages":""},"PeriodicalIF":3.1,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142750770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
Disentangling the worldwide invasion process of Halyomorpha halys through approximate Bayesian computation 通过近似贝叶斯计算厘清Halyomorpha halys的全球入侵过程
IF 3.1 2区 生物学
Heredity Pub Date : 2024-11-18 DOI: 10.1038/s41437-024-00735-9
Rajiv Boscolo Agostini, Maria Teresa Vizzari, Andrea Benazzo, Silvia Ghirotto
{"title":"Disentangling the worldwide invasion process of Halyomorpha halys through approximate Bayesian computation","authors":"Rajiv Boscolo Agostini,&nbsp;Maria Teresa Vizzari,&nbsp;Andrea Benazzo,&nbsp;Silvia Ghirotto","doi":"10.1038/s41437-024-00735-9","DOIUrl":"10.1038/s41437-024-00735-9","url":null,"abstract":"Halyomorpha halys is a polyphagous insect pest, which was first found outside its native regions in 1996, and since then it has rapidly spread worldwide causing damage to agriculture. Investigating the genetic diversity among H. halys populations is essential to understand the colonization history out of its native areas. Analyses based on mtDNA indicate multiple invasions from Asia to European and American continents, as well as serial invasions within invaded countries, but the colonization dynamics are still debated. Recently, genome-wide data (ddRAD) have been published to investigate the genomic structure of H. halys, proposing China as a putative source of multiple serial invasion events to Europe and the Americas. In this study we re-analyze published ddRAD sequences from worldwide populations of H. halys to better elucidate the colonization process. We assessed the genetic diversity in native populations identifying genetic differentiation between populations in China. Furthermore, we observed a complex pattern of population structure in the invaded countries, that may have originated from the occurrence of multiple independent colonization waves through time, from sub-populations present in the native range to Europe and the Americas. We tested alternative colonization hypotheses through Approximate Bayesian Computation comparison of demographic scenarios. Our results support multiple waves of migration from East China to invaded territories and the occurrence of European and American bridgehead effects. These results underline the importance of demographic inference through genome-wide data to investigate biological invasions, whose knowledge become fundamental to establish new strategies of management and control of invasive species.","PeriodicalId":12991,"journal":{"name":"Heredity","volume":"134 1","pages":"64-74"},"PeriodicalIF":3.1,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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
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