New Phytologist最新文献_第2页

Morphological fit promotes pollen segregation and disassortative pollination in an open-flowered, nontubular heterostylous species. 形态匹配促进花粉分离和异种传粉在一个开放的花，非管异花种。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-11-01 Epub Date: 2026-09-04 DOI: 10.1111/nph.71562

Xiong He, Spencer C H Barrett, Ze-Yu Tong, Yu Peng, Ling-Yun Wu

{"title":"Morphological fit promotes pollen segregation and disassortative pollination in an open-flowered, nontubular heterostylous species.","authors":"Xiong He, Spencer C H Barrett, Ze-Yu Tong, Yu Peng, Ling-Yun Wu","doi":"10.1111/nph.71562","DOIUrl":"10.1111/nph.71562","url":null,"abstract":"Heterostyly is a classic Darwinian adaptation promoting disassortative pollination. The polymorphism usually depends on floral tubes to enforce spatial segregation of pollen deposited on pollinators. How this is achieved in species with bowl-shaped flowers and generalised pollinators remains less well-understood. We investigated the mechanistic basis of Darwin's cross-promotion hypothesis in distylous Persicaria jucunda, which lacks a floral tube and is fly-pollinated. We integrated morphological measurements of flowers and flies with high-definition video analysis of foraging behaviour. Exploiting pollen-size dimorphism, we quantified morph-specific pollen placement on pollinator body parts and the composition of naturally pollinated stigmatic pollen loads. A 'morphological fit' was evident with fly proboscis length matching lower-level sex organs and upper-level organs matching the position of the head. This morphological congruence caused L-morph pollen to be deposited primarily on proboscides (76.6%) and S-morph pollen on heads (85.7%), resulting in a significantly higher proficiency of intermorph than intramorph pollen transfer. Despite the absence of a floral tube in P. jucunda, our findings of a morphological fit between flower and pollinator structures and consistent foraging behaviour by flies provide mechanistic support for Darwin's cross-promotion hypothesis and resolve the puzzle of how disassortative pollination occurs in open-flowered heterostylous systems.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1283-1295"},"PeriodicalIF":8.1,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148892702","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

eCOMET: an R package for evaluating metabolic diversity and enrichment from LC-MS/MS data to test ecological hypotheses from individuals to ecosystems. eCOMET：一个R软件包，用于从LC-MS/MS数据评估代谢多样性和富集，以测试从个体到生态系统的生态假设。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-11-01 Epub Date: 2026-09-16 DOI: 10.1111/nph.71589

Min-Soo Choi, Dale L Forrister, Guillaume J Dury, Kyo Bin Kang, Brian E Sedio, Youngsung Joo

{"title":"eCOMET: an R package for evaluating metabolic diversity and enrichment from LC-MS/MS data to test ecological hypotheses from individuals to ecosystems.","authors":"Min-Soo Choi, Dale L Forrister, Guillaume J Dury, Kyo Bin Kang, Brian E Sedio, Youngsung Joo","doi":"10.1111/nph.71589","DOIUrl":"10.1111/nph.71589","url":null,"abstract":"Methods in metabolomics have grown exponentially in recent years, providing new insight into the ecological function and evolutionary impact of diverse plant metabolites. Metabolomics requires a command of numerous tools, the outputs of which are typically integrated through in-house custom code that presents a workflow bottleneck and a barrier to entry for researchers in ecology, evolution, and behavior who may benefit from adding a metabolomics perspective to their research. We introduce eCOMET, an R package for integrating and harmonizing the outputs of common metabolomics bioinformatics tools and conducting statistical analyses and data visualization methods useful for ecological metabolomics. Our package combines metabolome feature metadata with quantification tables (e.g. mzmine), feature dissimilarity matrices (e.g. modified cosine and DreaMS), and feature annotations (e.g. SIRIUS) into a cohesive R data object to facilitate downstream analyses, including the calculation of diversity and disparity metrics and differential accumulation analysis. We provide two tutorials, each explores herbivore-induced Arabidopsis thaliana metabolome and 10 co-occurring tropical trees species metabolomes. Our goal is to make metabolomics accessible to a wider range of researchers in ecology, evolution, and behavior to unlock the potential of ecological metabolomics to generate novel insight into these fields.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":"1675-1687"},"PeriodicalIF":8.1,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13669803/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148983901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Diversification and coexistence amid widespread and persistent gene flow in Andean trees. 安第斯树木中广泛和持久的基因流动中的多样化和共存。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-16 DOI: 10.1111/nph.71657

Ellen J Quinlan, James B Pease, Jhonatan Sallo Bravo, Alfredo F Fuentes, William Farfan-Rios, Miles R Silman

{"title":"Diversification and coexistence amid widespread and persistent gene flow in Andean trees.","authors":"Ellen J Quinlan, James B Pease, Jhonatan Sallo Bravo, Alfredo F Fuentes, William Farfan-Rios, Miles R Silman","doi":"10.1111/nph.71657","DOIUrl":"https://doi.org/10.1111/nph.71657","url":null,"abstract":"Hybridization and introgression are increasingly recognized as important in plant evolution, yet their prevalence and consequences remain poorly understood in tropical Andean trees, where species coexist at low densities and turn over rapidly across elevation gradients. Here, we investigate whether species boundaries are maintained among 10 congeneric Andean Prunus L. species distributed across the Andes-Amazon elevational gradient by reconstructing phylogenetic relationships, divergence times, and patterns of historical and recent gene flow. We find that Andean Prunus diversified during the Miocene, likely in response to novel habitat opportunities resulting from mountain uplift, combined with allopatric processes. Despite this evolutionary divergence, these species show extensive ancient introgression and recent admixture, indicating that species boundaries remain permeable across both ecological and phylogenetic distance. Together, these results suggest that Andean Prunus comprise distinct but evolutionarily connected lineages that retain morphological identity while potentially functioning as a long-lived syngameon, with implications for understanding the origin and maintenance of tropical tree diversity and future response to global change.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149196455","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Engineering root development with high precision. 工程根开发精度高。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-16 DOI: 10.1111/nph.71583

Roza D Bilas, Sarah Guiziou

引用次数: 0

The homologous GRAS transcription factors RAM1 and RAD1 coordinate shared and separate gene networks to regulate arbuscular mycorrhiza symbiosis. 同源的GRAS转录因子RAM1和RAD1协调共享和分离的基因网络，调节灌木菌根共生。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-16 DOI: 10.1111/nph.71662

Tian Zeng, Jessica Alpers, Fabio Boniolo, Regine Huettl, Florian Berger, Carlos Hernandez Cortes, Caroline Gutjahr

{"title":"The homologous GRAS transcription factors RAM1 and RAD1 coordinate shared and separate gene networks to regulate arbuscular mycorrhiza symbiosis.","authors":"Tian Zeng, Jessica Alpers, Fabio Boniolo, Regine Huettl, Florian Berger, Carlos Hernandez Cortes, Caroline Gutjahr","doi":"10.1111/nph.71662","DOIUrl":"https://doi.org/10.1111/nph.71662","url":null,"abstract":"Arbuscular mycorrhiza (AM), a symbiosis between plants and Glomeromycotan fungi is based on the exchange of nutrients, which majorly occurs between fungal tree-shaped arbuscules and root cortex cells. Two homologous plant GRAS transcription factors, RAM1 and RAD1, were previously reported to interact, and both were implicated in regulating arbuscule branching in Lotus japonicus. We revisited the role of L. japonicus RAM1 and RAD1 and asked whether they act together in mediating arbuscule development and gene expression, or whether they act additively. We performed comprehensive genetic, phenotypic, and transcriptome analyses of two allelic Lotus ram1, rad1, and ram1 rad1 mutants; and of roots ectopically expressing RAM1 and/or RAD1. We found that RAD1 is required for full root colonization in a RAM1-dependent manner, but in our growth conditions, RAD1 is not required for arbuscule branching. In addition, RAM1 and RAD1 are required for activation of partially common and partially distinct sets of downstream genes. Thus, in contrast to RAM1, Lotus RAD1 is not essential for arbuscule branching. Furthermore, RAM1 and RAD1 seem to act partially synergistically but seem to participate in additional alternative transcription factor complexes to regulate AM-induced gene expression and AM development.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149196721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Dormancy type, seed traits, and species identity shape seed-associated fungal community composition in tropical pioneer trees. 休眠类型、种子性状和物种特性决定了热带先锋树种子相关真菌群落组成。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-16 DOI: 10.1111/nph.71601

Lindsay A McCulloch, A Elizabeth Arnold, James W Dalling, Adam S Davis, Carolina Sarmiento, Paul-Camilo Zalamea

{"title":"Dormancy type, seed traits, and species identity shape seed-associated fungal community composition in tropical pioneer trees.","authors":"Lindsay A McCulloch, A Elizabeth Arnold, James W Dalling, Adam S Davis, Carolina Sarmiento, Paul-Camilo Zalamea","doi":"10.1111/nph.71601","DOIUrl":"https://doi.org/10.1111/nph.71601","url":null,"abstract":"Seed germination is regulated in many plants by seed dormancy, while postdispersal survival is often determined by soilborne fungi that infect seeds. In tropical forests, seeds in each of three dormancy types (physical, physiologically dormant, or quiescent) often share similar physical and chemical traits. We hypothesized that variation in seed traits aligned with seed dormancy should shape seed-associated fungal communities, linking dormancy to seed survival. Seeds of 18 pioneer tree species were buried in each of five common garden plots in a lowland tropical forest in Panama for up to 36 months. Seeds were screened for viability and fungal infection at intervals throughout the experiment. Plant species with different dormancy types harbored distinct fungal communities. Dormancy type explained 6.5% of variation in fungal community composition after accounting for the far stronger signature of plant species identity (34%). Within dormancy types, differences in seed traits among species explained 49-56% of the variation in fungal communities, suggesting that seed traits drive niche partitioning beyond what is imposed by dormancy type alone. This study shows that variation in seed traits within a dormancy type filters seed-associated fungal communities, which likely shapes the demography of tropical forest trees by influencing seed survival and germination.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2026-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149196762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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 St-derived genome contributes to the formation of the wheat BB genome. st衍生的基因组有助于小麦BB基因组的形成。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-15 DOI: 10.1111/nph.71664

Meng-Di Wang, Frédéric Choulet, Fan Zhang, Fu-Hao Lu

{"title":"A St-derived genome contributes to the formation of the wheat BB genome.","authors":"Meng-Di Wang, Frédéric Choulet, Fan Zhang, Fu-Hao Lu","doi":"10.1111/nph.71664","DOIUrl":"https://doi.org/10.1111/nph.71664","url":null,"abstract":"Although substantial efforts have been made to identify the progenitor of the wheat BB genome, the precise donor remains elusive. In this study, we first investigated the origin of the BB genome using a BB-specific atp6 gene harboring unique 5'-end sequences, which is present in multiple copies and partially pseudogenized in the BB genome. BLAST searches revealed that multi-copied atp6 (pseudo)genes occur exclusively in polyploid St-genome species. An ultrametric phylogeny constructed from genome-wide single-copy genes resolved the divergence of Aegilops speltoides (SS genome) and the St genome c. 4 million years ago, coinciding with the estimated origin of the BB genome. Furthermore, genome-wide single-nucleotide polymorphism (SNP)-based allele matching showed that the St genome best explains BB alleles after SS, with an SS : St SNP ratio of 3 : 1, suggesting that the St genome likely contributed to the BB formation via two independent hybridization events with the SS ancestor. Finally, we identified 52 BB-specific genes to facilitate the search for the true BB donor or the transitional hybrid. This study provides compelling evidence for the St genome's critical contribution to the BB genome and advances our understanding of how the complex hexaploid genome of bread wheat was formed and reshaped over evolutionary time.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2026-10-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149196460","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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

Alexandre Antonelli. 亚历山大·Antonelli)。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-15 DOI: 10.1111/nph.71609

引用次数: 0

Preparing, pairing and recovering: how angiosperms coordinate double fertilization. 准备、配对和恢复：被子植物如何协调双受精。

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-15 DOI: 10.1111/nph.71663

Yaxiao Liu, Sheng Zhong

引用次数: 0

Excess endopolyploidy associated with cellular defects in neo-autotetraploid Arabidopsis arenosa is in part corrected by a naturally evolved allele of CYCD3;2. 新同源四倍体拟南芥中与细胞缺陷相关的过量内多倍体部分由自然进化的CYCD3等位基因纠正；

IF 8.1 1区生物学

New Phytologist Pub Date : 2026-10-12 DOI: 10.1111/nph.71647

Anis Meschichi, Marinela Dukić, Lars C Schmid, Andreas L Bachmann, Tadeas J Priklopil, Hui San Tan, Kirsten Bomblies

{"title":"Excess endopolyploidy associated with cellular defects in neo-autotetraploid Arabidopsis arenosa is in part corrected by a naturally evolved allele of CYCD3;2.","authors":"Anis Meschichi, Marinela Dukić, Lars C Schmid, Andreas L Bachmann, Tadeas J Priklopil, Hui San Tan, Kirsten Bomblies","doi":"10.1111/nph.71647","DOIUrl":"https://doi.org/10.1111/nph.71647","url":null,"abstract":"Endopolyploidy (within-organism polyploidy) is an often-beneficial aspect of development. But polyploids, which have a higher baseline genome content, have been reported to have less endoreduplication than diploid relatives. Why has remained unclear; we explored this in Arabidopsis arenosa. We measured endopolyploidy levels and phenotyped cellular traits, comparing diploids, neo-autotetraploids, and established autotetraploids of A. arenosa. We used a genetic approach to ask whether CYCD3;2, a polyploidy regulator with evidence of selection in tetraploids, might be responsible for endopolyploidy-related phenotypic differences between neo- and established polyploids, and whether there are associated costs. Neo-tetraploids had the most 16C and 32C cells, whereas established tetraploids have proportions of 16C and 32C cells comparable to diploids. Tetraploid plants homozygous for a novel allele of CYCD3;2 have reduced endopolyploidy compared to homozygotes for the diploid allele and, surprisingly, also show cellular defects seen in neo-tetraploids. Suggesting this link is specific, we find that A. thaliana cycd3;2 mutants have not only increased endopolyploidy but also root hair defects like neo-tetraploids. Our results suggest reverting endopolyploidy in polyploids to diploid-like levels could be advantageous, and that one driver might be cellular defects that arise with excess high-ploidy cells.","PeriodicalId":48887,"journal":{"name":"New Phytologist","volume":" ","pages":""},"PeriodicalIF":8.1,"publicationDate":"2026-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149170543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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