Proceedings of the Royal Society B最新文献_第5页

Origin of horsetails and the role of whole-genome duplication in plant macroevolution 马尾的起源及全基因组复制在植物宏观进化中的作用

Proceedings of the Royal Society B Pub Date : 2019-10-30 DOI: 10.1098/rspb.2019.1662

James W. Clark, Mark N. Puttick, P. Donoghue

{"title":"Origin of horsetails and the role of whole-genome duplication in plant macroevolution","authors":"James W. Clark, Mark N. Puttick, P. Donoghue","doi":"10.1098/rspb.2019.1662","DOIUrl":"https://doi.org/10.1098/rspb.2019.1662","url":null,"abstract":"Whole-genome duplication (WGD) has occurred commonly in land plant evolution and it is often invoked as a causal agent in diversification, phenotypic and developmental innovation, as well as conferring extinction resistance. The ancient and iconic lineage of Equisetum is no exception, where WGD has been inferred to have occurred prior to the Cretaceous–Palaeogene (K–Pg) boundary, coincident with WGD events in angiosperms. In the absence of high species diversity, WGD in Equisetum is interpreted to have facilitated the long-term survival of the lineage. However, this characterization remains uncertain as these analyses of the Equisetum WGD event have not accounted for fossil diversity. Here, we analyse additional available transcriptomes and summarize the fossil record. Our results confirm support for at least one WGD event shared among the majority of extant Equisetum species. Furthermore, we use improved dating methods to constrain the age of gene duplication in geological time and identify two successive Equisetum WGD events. The two WGD events occurred during the Carboniferous and Triassic, respectively, rather than in association with the K–Pg boundary. WGD events are believed to drive high rates of trait evolution and innovations, but analysed trends of morphological evolution across the historical diversity of Equisetum provide little evidence for further macroevolutionary consequences following WGD. WGD events cannot have conferred extinction resistance to the Equisetum lineage through the K–Pg boundary since the ploidy events occurred hundreds of millions of years before this mass extinction and we find evidence of extinction among fossil polyploid Equisetum lineages. Our findings precipitate the need for a review of the proposed roles of WGDs in biological innovation and extinction survival in angiosperm and non-angiosperm lineages alike.","PeriodicalId":20609,"journal":{"name":"Proceedings of the Royal Society B","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88863686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 15

Post-copulatory sexual selection allows females to alleviate the fitness costs incurred when mating with senescing males 交配后的性选择使雌性在与衰老的雄性交配时减轻了适应性成本

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1675

Pauline Vuarin, Alice Bouchard, L. Lesobre, Gwénaëlle Leveque, T. Chalah, M. S. Jalme, F. Lacroix, Y. Hingrat, G. Sorci

{"title":"Post-copulatory sexual selection allows females to alleviate the fitness costs incurred when mating with senescing males","authors":"Pauline Vuarin, Alice Bouchard, L. Lesobre, Gwénaëlle Leveque, T. Chalah, M. S. Jalme, F. Lacroix, Y. Hingrat, G. Sorci","doi":"10.1098/rspb.2019.1675","DOIUrl":"https://doi.org/10.1098/rspb.2019.1675","url":null,"abstract":"Male senescence has detrimental effects on reproductive success and offspring fitness. When females mate with multiple males during the same reproductive bout, post-copulatory sexual selection that operates either through sperm competition or cryptic female choice might allow females to skew fertilization success towards young males and as such limit the fitness costs incurred when eggs are fertilized by senescing males. Here, we experimentally tested this hypothesis. We artificially inseminated female North African houbara bustards with sperm from dyads of males of different (young and old) or similar ages (either young or old). Then, we assessed whether siring success was biased towards young males and we measured several life-history traits of the progeny to evaluate the fitness costs due to advanced paternal age. In agreement with the prediction, we found that siring success was biased towards young males, and offspring sired by old males had impaired hatching success, growth and post-release survival (in females). Overall, our results support the hypothesis that post-copulatory sexual selection might represent an effective mechanism allowing females to avoid the fitness costs of fertilization by senescing partners.","PeriodicalId":20609,"journal":{"name":"Proceedings of the Royal Society B","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88726444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 19

Interspecific hybridization can generate functional novelty in cichlid fish 种间杂交可以产生新的功能

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1621

O. Selz, O. Seehausen

{"title":"Interspecific hybridization can generate functional novelty in cichlid fish","authors":"O. Selz, O. Seehausen","doi":"10.1098/rspb.2019.1621","DOIUrl":"https://doi.org/10.1098/rspb.2019.1621","url":null,"abstract":"The role of interspecific hybridization in evolution is still being debated. Interspecific hybridization has been suggested to facilitate the evolution of ecological novelty, and hence the invasion of new niches and adaptive radiation when ecological opportunity is present beyond the parental species niches. On the other hand, hybrids between two ecologically divergent species may perform less well than parental species in their respective niches because hybrids would be intermediate in performance in both niches. The evolutionary consequences of hybridization may hence be context-dependent, depending on whether ecological opportunities, beyond those of the parental species, do or do not exist. Surprisingly, these complementary predictions may never have been tested in the same experiment in animals. To do so, we investigate if hybrids between ecologically distinct cichlid species perform less well than the parental species when feeding on food either parent is adapted to, and if the same hybrids perform better than their parents when feeding on food none of the species are adapted to. We generated two first-generation hybrid crosses between species of African cichlids. In feeding efficiency experiments we measured the performance of hybrids and parental species on food types representing both parental species niches and additional ‘novel’ niches, not used by either of the parental species but by other species in the African cichlid radiations. We found that hybrids can have higher feeding efficiencies on the ‘novel’ food types but typically have lower efficiencies on parental food types when compared to parental species. This suggests that hybridization can generate functional variation that can be of ecological relevance allowing the access to resources outside of either parental species niche. Hence, we provide support for the hypothesis of ecological context-dependency of the evolutionary impact of interspecific hybridization.","PeriodicalId":20609,"journal":{"name":"Proceedings of the Royal Society B","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89670053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 46

Meiotic drive mechanisms: lessons from Drosophila 减数分裂驱动机制:来自果蝇的启示

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1430

C. Courret, Ching-ho Chang, K. Wei, C. Montchamp-Moreau, A. Larracuente

{"title":"Meiotic drive mechanisms: lessons from Drosophila","authors":"C. Courret, Ching-ho Chang, K. Wei, C. Montchamp-Moreau, A. Larracuente","doi":"10.1098/rspb.2019.1430","DOIUrl":"https://doi.org/10.1098/rspb.2019.1430","url":null,"abstract":"Meiotic drivers are selfish genetic elements that bias their transmission into gametes, often to the detriment of the rest of the genome. The resulting intragenomic conflicts triggered by meiotic drive create evolutionary arms races and shape genome evolution. The phenomenon of meiotic drive is widespread across taxa but is particularly prominent in the Drosophila genus. Recent studies in Drosophila have provided insights into the genetic origins of drivers and their molecular mechanisms. Here, we review the current literature on mechanisms of drive with an emphasis on sperm killers in Drosophila species. In these systems, meiotic drivers often evolve from gene duplications and targets are generally linked to heterochromatin. While dense in repetitive elements and difficult to study using traditional genetic and genomic approaches, recent work in Drosophila has made progress on the heterochromatic compartment of the genome. Although we still understand little about precise drive mechanisms, studies of male drive systems are converging on common themes such as heterochromatin regulation, small RNA pathways, and nuclear transport pathways. Meiotic drive systems are therefore promising models for discovering fundamental features of gametogenesis.","PeriodicalId":20609,"journal":{"name":"Proceedings of the Royal Society B","volume":"19 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85318371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 60

Altered lentiviral infection dynamics follow genetic rescue of the Florida panther 改变慢病毒感染动力学遵循佛罗里达黑豹的遗传救援

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1689

J. Malmberg, JUSTIN S. Lee, R. Gagne, S. Kraberger, Sarah Kechejian, M. Roelke, R. McBride, D. Onorato, M. Cunningham, K. Crooks, S. Vandewoude

{"title":"Altered lentiviral infection dynamics follow genetic rescue of the Florida panther","authors":"J. Malmberg, JUSTIN S. Lee, R. Gagne, S. Kraberger, Sarah Kechejian, M. Roelke, R. McBride, D. Onorato, M. Cunningham, K. Crooks, S. Vandewoude","doi":"10.1098/rspb.2019.1689","DOIUrl":"https://doi.org/10.1098/rspb.2019.1689","url":null,"abstract":"Wildlife translocations are a commonly used strategy in endangered species recovery programmes. Although translocations require detailed assessment of risk, their impact on parasite distribution has not been thoroughly assessed. This is despite the observation that actions that alter host–parasite distributions can drive evolution or introduce new parasites to previously sequestered populations. Here, we use a contemporary approach to amplify viral sequences from archived biological samples to characterize a previously undocumented impact of the successful genetic rescue of the Florida panther (Puma concolor coryi). Our efforts reveal transmission of feline immunodeficiency virus (FIV) during translocation of pumas from Texas to Florida, resulting in extirpation of a historic Florida panther FIV subtype and expansion of a genetically stable subtype that is highly conserved in Texas and Florida. We used coalescent theory to estimate viral demography across time and show an exponential increase in the effective population size of FIV coincident with expansion of the panther population. Additionally, we show that FIV isolates from Texas are basal to isolates from Florida. Interestingly, FIV genomes recovered from Florida and Texas demonstrate exceptionally low interhost divergence. Low host genomic diversity and lack of additional introgressions may underlie the surprising lack of FIV evolution over 2 decades. We conclude that modern FIV in the Florida panther disseminated following genetic rescue and rapid population expansion, and that infectious disease risks should be carefully considered during conservation efforts involving translocations. Further, viral evolutionary dynamics may be significantly altered by ecological niche, host diversity and connectivity between host populations.","PeriodicalId":20609,"journal":{"name":"Proceedings of the Royal Society B","volume":"87 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75702946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

Synchrotron X-ray absorption spectroscopy of melanosomes in vertebrates and cephalopods: implications for the affinity of Tullimonstrum 脊椎动物和头足类动物黑素体的同步加速器x射线吸收光谱研究:对白头草亲和力的影响

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1649

C. Rogers, Timothy I. Astrop, S. Webb, S. Ito, K. Wakamatsu, M. McNamara

引用次数: 13

It's what's on the inside that counts: stress physiology and the bacterial microbiome of a wild urban mammal 重要的是它的内部:压力生理学和野生城市哺乳动物的细菌微生物群

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.2111

Mason R. Stothart, R. Palme, A. Newman

{"title":"It's what's on the inside that counts: stress physiology and the bacterial microbiome of a wild urban mammal","authors":"Mason R. Stothart, R. Palme, A. Newman","doi":"10.1098/rspb.2019.2111","DOIUrl":"https://doi.org/10.1098/rspb.2019.2111","url":null,"abstract":"The microbiome's capacity to shape the host phenotype and its mutability underlie theorization that the microbiome might facilitate host acclimation to rapid environmental change. However, when environmental change occurs, it is unclear whether resultant microbiome restructuring is proximately driven by this changing external environment or by the host's physiological response to this change. We leveraged urbanization to compare the ability of host environment (urban or forest) versus multi-scale biological measures of host hypothalamic–pituitary–adrenal (HPA) axis physiology (neutrophil : lymphocyte ratio, faecal glucocorticoid metabolites, hair cortisol) to explain variation in the eastern grey squirrel (Sciurus carolinensis) faecal microbiome. Urban and forest squirrels differed across all three of the interpretations of HPA axis activity we measured. Direct consideration of these physiological measures better explained greater phylogenetic turnover between squirrels than environment. This pattern was strongly driven by trade-offs between bacteria which specialize on metabolizing digesta versus host-derived nutrient sources. Drawing on ecological theory to explain patterns in intestinal bacterial communities, we conclude that although environmental change can affect the microbiome, it might primarily do so indirectly by altering host physiology. We demonstrate that the inclusion and careful consideration of dynamic, rather than fixed (e.g. sex), dimensions of host physiology are essential for the study of host–microbe symbioses at the micro-evolutionary scale.","PeriodicalId":20609,"journal":{"name":"Proceedings of the Royal Society B","volume":"22 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81649789","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 40

Ecological opportunity shapes a large Arctic charr species radiation 生态机遇塑造了北极大量碳物种的辐射

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1992

Carmela J. Doenz, Andrin K. Krähenbühl, Jonas Walker, O. Seehausen, J. Brodersen

{"title":"Ecological opportunity shapes a large Arctic charr species radiation","authors":"Carmela J. Doenz, Andrin K. Krähenbühl, Jonas Walker, O. Seehausen, J. Brodersen","doi":"10.1098/rspb.2019.1992","DOIUrl":"https://doi.org/10.1098/rspb.2019.1992","url":null,"abstract":"Ecological opportunity is considered a crucial factor for adaptive radiation. Here, we combine genetic, morphological and ecological data to assess species and ecomorphological diversity of Artic charr in six lakes of a catchment in southernmost Greenland, where only charr and stickleback occur. Because the diversity of habitats and resources increases with lake size, we predict a positive association between lake size and the extent of ecomorphological diversity. The largest lake of the catchment harbours the largest Arctic charr assemblage known today. It consists of six genetically differentiated species belonging to five ecomorphs (anadromous, littoral benthic, profundal dwarf, planktivorous, piscivorous), of which the latter comprises two ecomorphologically extremely similar species. Lakes of intermediate size contain two ecomorphologically and genetically distinct species. Small lakes harbour one genetically homogeneous, yet sometimes ecomorphologically variable population. Supporting our prediction, lake size is positively correlated with the extent of ecomorphological specialization towards profundal, pelagic and piscivorous lifestyle. Furthermore, assemblage-wide morphospace increases sharply when more than one genetic cluster is present. Our data suggest that ecological opportunity and speciation jointly determine phenotypic expansion in this charr radiation.","PeriodicalId":20609,"journal":{"name":"Proceedings of the Royal Society B","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84237601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 27

Beyond drugs: the evolution of genes involved in human response to medications 药物之外:人类对药物反应的基因进化

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1716

S. Fuselli

引用次数: 16

Sensory gaze stabilization in echolocating bats 回声定位蝙蝠的感觉凝视稳定

Proceedings of the Royal Society B Pub Date : 2019-10-23 DOI: 10.1098/rspb.2019.1496

O. Eitan, G. Kósa, Y. Yovel

引用次数: 15