American Journal of Botany最新文献

{"title":"Genetic diversity and evolutionary services for Nature-based Solutions","authors":"Alicia Mastretta-Yanes","doi":"10.1002/ajb2.70238","DOIUrl":"10.1002/ajb2.70238","url":null,"abstract":"<p>From individuals to complex civilizations, humans have relied on nature for their well-being through millennia, albeit reciprocity levels vary. In contemporary terms, and in the context of the most pressing issues humanity faces today, the “actions to protect, sustainably manage and restore natural and modified ecosystems in ways that address societal challenges effectively and adaptively, to provide both human well-being and biodiversity benefits” are referred to as Nature-based Solutions (NbS, Figure 1) (Cohen-Shacham et al., <span>2016</span>). NbS is an active field of socioenvironmental research with real-world applications sitting at the intersection of people, nature, and environmental issues. For example, a successful NbS story is the community-based mangrove restoration, which contributed to disaster risk reduction, protected key habitats, and increased local economy income from fisheries (see more at https://casestudies.naturebasedsolutionsinitiative.org/case-search/).</p><p>According to the International Union for Conservation of Nature (IUCN) there are seven major societal challenges that NbS can address (Cohen-Shacham et al., <span>2016</span>; Figure 1), including topics like disaster risk reduction, food security, climate change, and biodiversity loss. However, the concept of NbS has also sparked debate. On one hand, NbS are sensitive to the influence of <i>dominant framings</i> (see Box 1 (Glossary)) and power-inequalities. For instance, certain framings can reinforce the human-nature dichotomies or frame disagreements as undesirable (Hafferty et al., <span>2025</span>). Therefore, they could be used for <i>greenwashing</i>, in top-down approaches that commodify nature and can even harm biodiversity and human communities (Seddon, <span>2022</span>). On the other hand, supporters of NbS maintain that beyond its original technical definition, NbS should be understood as ways of working with, and as part of, nature and framed to ensure that multiple values of nature are respected (Seddon, <span>2022</span>); following guidelines to prevent the misuse of NbS (+ https://www.naturebasedsolutionsinitiative.org; IUCN, <span>2020</span>). Furthermore, NbS are commonly supported and implemented by governments and civil organizations, and they are embedded in international agreements. Namely, NbS are explicitly or indirectly mentioned in several targets (https://www.cbd.int/gbf/targets) of the <i>Global Biodiversity Framework</i> (GBF), are included as part of the response options that advance multiple <i>Sustainable Development Goals</i> (IPBES, <span>2024</span>), and they have been debated as part of the Convention on Climate Change. This signals that NbS are shaping real-world decisions, thereby calling for rigorous research, which more explicitly should both: (1) include questions about how sustainability transformations are co-produced, whose values and livelihoods are recognised, who decides how (and if) to undertake NbS, and who b","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajb2.70238","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148443745","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}

{"title":"Recovery of California black walnut (Juglans californica) trees from drought, fire, and biotic stress: Is resprouting an elixir?","authors":"Lauren M. Tucker,&nbsp;Edward G. Bobich,&nbsp;Stephen D. Davis,&nbsp;Valerie J. Mellano,&nbsp;Frank W. Ewers","doi":"10.1002/ajb2.70223","DOIUrl":"10.1002/ajb2.70223","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Premise</h3>\u0000 \u0000 <p>Resilience to the interaction of multiple stress factors of drought, wildfire, and canker disease has been little studied. During the 2012 to 2016 megadrought in California, black walnut trees were observed to resprout from the base due to water stress-induced dieback. After monitoring plants for a year, wildfire burned all the plants at two of our study sites, which was followed by vegetative resprouting. Plants also expressed symptoms of canker disease. We thus had an opportunity to assess the impacts of water stress, wildfire, growth form, and canker disease on plant performance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>Water potentials and photosynthetic rates of drought-induced resprouts were monitored and compared to nearby adults that had not experienced drought-induced dieback, both inland (San Dimas, California) and at coastal exposures (Malibu, CA). We monitored the recovery of adults and drought-induced resprouts from 2017 to 2019, including fire-induced resprouts at coastal exposures following a 2018 wildfire. In addition, stem canker number and canker length were compared among irrigated and non-irrigated growth forms, including drought-induced resprouts, coppice-induced resprouts, adults, and resprouting adults.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Drought-induced resprouts displayed higher water potentials and photosynthetic rates than adults, especially during dry periods, but had lower (more negative) values than fire-induced resprouts. Non-irrigated walnut trees displayed greater canker initiation and canker elongation rates than irrigated trees, with irrigated coppice-induced resprouts showing the least canker development.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Resprouting can temporarily relieve water stress, but xylem water stress and canker disease agents feed off one another. Repeat stresses of drought, fire and disease compound to reduce the resilience of individuals and populations of walnut.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148293129","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}

{"title":"Phylogenomics confirm the monophyly of Guzmania (Bromeliaceae: Tillandsioideae) and provide evidence regarding alternative hybridization scenarios involving G. monostachia","authors":"Shelby Krupar,&nbsp;Grant T. Godden,&nbsp;Andrew A. Crowl,&nbsp;Stephen R. Patten,&nbsp;Nico Cellinese","doi":"10.1002/ajb2.70229","DOIUrl":"10.1002/ajb2.70229","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Premise</h3>\u0000 \u0000 <p>We present a phylogenomic framework to clarify the evolutionary origin of <i>Guzmania</i> within the broader Tillandsioideae. The genus represents ~15% of extant diversity in Tillandsioideae and includes the widespread <i>G. monostachia</i>, whose distribution spans northern South America, Central America, the Caribbean, and southern Florida. Populations of <i>G. monostachia</i> have been in decline recently due to habitat loss and fragmentation, with Florida populations—its northernmost limit of the species—particularly vulnerable to anthropogenic threats. Understanding the evolutionary history of these lineages is essential for assessing their genetic diversity and guiding conservation efforts.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We assembled new plastid and nuclear genome references for <i>G. monostachia</i> to construct novel plastome and nuclear single nucleotide polymorphism (SNP) data sets. We integrated these data sets with public sequence data to infer phylogenomic relationships and estimate divergence times across Tillandsioideae. We also performed per-site log-likelihood analyses to visualize phylogenetic signal across two discordant topologies for <i>G. monostachia</i>.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>We recovered a monophyletic <i>Guzmania</i>, but many relationships within Tillandsioideae remain unresolved. Notably, phylogenetic analyses revealed conflicting signals about the monophyly of <i>G. monostachia</i>, with some trees placing <i>G. fuerstenbergiana</i> and <i>G. remyi</i> nested within it.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Our findings underscore the limitations of large-scale plastid data for clarifying Tillandsioideae phylogenies. Nonetheless, they suggest a possible hybrid origin for <i>G. monostachia</i> and a distinct evolutionary trajectory for Florida populations. Data and insights generated by our study provide a foundation to enable forthcoming genetic diversity studies and future conservation planning for this threatened lineage.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 7","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148403452","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}

{"title":"Resurrection ecology: An approach for understanding eco-evolutionary plant-microbe interactions under global change","authors":"Candice Y. Lumibao","doi":"10.1002/ajb2.70218","DOIUrl":"10.1002/ajb2.70218","url":null,"abstract":"&lt;p&gt;Plant-microbe interactions span a continuum of relationships—from antagonistic/negative to mutualistic/positive—that occur both below and above ground: in the rhizosphere (within ~2 mm of plant roots), the endosphere (inside plant tissues), and the phyllosphere (surfaces of aerial organs). These include pairwise partnerships, whereby individual plants associate with a specific microbe (e.g., mycorrhiza), as well as diffuse interactions between plants and diverse communities of microbes. These interactions are subject to eco-evolutionary processes—the feedback between ecological and evolutionary change (Hendry, &lt;span&gt;2020&lt;/span&gt;)—that can be influenced by global change (Angulo et al., &lt;span&gt;2022&lt;/span&gt;). For example, microbes can influence both the ecological (e.g., growth; Burghardt, &lt;span&gt;2020&lt;/span&gt;; Lumibao et al., &lt;span&gt;2022&lt;/span&gt;) and the evolutionary responses (i.e., through altered strength of selection on plant traits) of plants to global change (Friesen et al., &lt;span&gt;2011&lt;/span&gt;). In turn, plants can shape the microbe's ecological (e.g., population changes; Lumibao et al., &lt;span&gt;2025&lt;/span&gt;) and evolutionary responses, initiating eco-evolutionary interactions. However, temporal constraints associated with long generation times of plants present a challenge in capturing evolutionary change within an ecological timescale that can impact the outcomes of ongoing ecological interactions. While recent evidence suggests that plants are capable of rapid, contemporary evolution (i.e., within one to ten generations; Christie et al., &lt;span&gt;2023&lt;/span&gt;; Pennington et al., &lt;span&gt;2025&lt;/span&gt; [preprint]), longer timescales may be needed to capture eco-evolutionary processes underlying plant-microbe interactions. For example, perennial plants may require centuries or millennia to manifest evolutionary responses mediated by microbes. “Resurrection ecology,” or the revival of long-dormant propagules, offers a powerful approach for understanding eco-evolutionary plant-microbe interactions (e.g., trajectory, nature, and feedback mechanism).&lt;/p&gt;&lt;p&gt;The revival of dormant propagules—such as daphnia eggs or plant seeds, stored in their natural environment (Frisch et al., &lt;span&gt;2020&lt;/span&gt;; Blum et al., &lt;span&gt;2021&lt;/span&gt;), in archival seeds banks, or in herbarium collections (Christie et al., &lt;span&gt;2023&lt;/span&gt;)—has long been used in eco-evolutionary studies to track organismal or population responses to global change (Franks et al., &lt;span&gt;2018&lt;/span&gt;; Summers et al., &lt;span&gt;2018&lt;/span&gt;; Vahsen et al., &lt;span&gt;2023&lt;/span&gt;). These dormant propagules represent spatiotemporal integrators of genomic-, phenotypic-, species-, and community-level variation, revealing important evolutionary insights, including adaptations to current environmental conditions (Karitter et al., &lt;span&gt;2024&lt;/span&gt;), genotypic versus plastic responses, and the phenotypic evolution of species or populations (Frisch et al., &lt;span&gt;2020&lt;/span&gt;; Vahsen et al., &lt;span&gt;2023&lt;/span&gt;). There is good rea","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajb2.70218","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148203858","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}

{"title":"Evidence of introgression amid phylogenetic conflict in Brachyotum, a plant radiation from the Tropical Andes","authors":"Diego Paredes-Burneo,&nbsp;Ana M. Bedoya,&nbsp;Fabián A. Michelangeli,&nbsp;Lucas C. Majure,&nbsp;Carmen Ulloa Ulloa,&nbsp;Laura P. Lagomarsino","doi":"10.1002/ajb2.70213","DOIUrl":"10.1002/ajb2.70213","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Premise</h3>\u0000 \u0000 <p>The species-rich flora of Tropical Andes underwent multiple rapid and recent diversifications, yet resolving their evolutionary histories remains challenging despite increasing phylogenomic data. Here, we examined phylogenomic conflict in <i>Brachyotum</i> (Melastomataceae) to identify sources preventing its resolution.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We sequenced multiple nuclear loci through target capture and plastid loci through genome skimming for approximately two thirds of <i>Brachyotum</i> species. We analyzed nuclear loci with concatenated maximum-likelihood, multispecies coalescent (MSC), and phylogenetic network approaches, whereas plastid loci were analyzed with a concatenated maximum-likelihood.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Topological conflict was widespread among gene trees. <i>Brachyotum</i> was inferred as monophyletic by concatenated nuclear and ASTRAL approaches, but as paraphyletic by BEAST and phylogenetic network analyses, the latter involving four introgression events. Plastid analyses also recovered paraphyly. Across analyses, the backbone of <i>Brachyotum</i> showed low branch support, and individual nuclear loci yielded markedly divergent topologies across inference methods.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Despite pervasive gene tree discordance, the signal for multiple introgression events is robust. Cytonuclear discordance between plastid and nuclear data further supports introgression. Our results suggest that current phylogenomic approaches may not fully capture the evolutionary complexity of <i>Brachyotum</i>, a challenge that may extend to other rapid Andean plant radiations.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajb2.70213","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148222636","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}

{"title":"Pollination by long-proboscid horseflies and its implications for reproductive isolation among coflowering Satyrium orchids in South Africa","authors":"Steven D. Johnson,&nbsp;Matthew Moir,&nbsp;Ethan Newman,&nbsp;Timotheüs Van der Niet","doi":"10.1002/ajb2.70221","DOIUrl":"10.1002/ajb2.70221","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Premise</h3>\u0000 \u0000 <p>Floral adaptations to pollinators can drive lineage diversification and promote coexistence of species. We investigated the reproductive biology of <i>Satyrium longicolle</i>, a South African orchid that we hypothesized to belong to a long-proboscid horsefly pollination guild and examined overlap of pollinators and floral traits among coflowering sympatric <i>Satyrium</i> species.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We observed pollinators across different sites and years, carried out experimental pollinations, and measured spectral reflectance, scent chemistry, floral dimensions and nectar properties for both <i>S. longicolle</i>, and sympatric congeners and other species belonging to the horsefly pollination guild. Spectral reflectance was analyzed in appropriate insect vision models.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p><i>Satyrium longicolle</i> has weakly scented flowers that are pollinated diurnally by long-proboscid <i>Philoliche</i> horseflies, which ignored the strongly scented flowers of sympatric moth-pollinated congeners. The cream UV-reflecting flowers of S. <i>longicolle</i> and other guild members differed in color, but not achromatic contrast, from the white UV-absorbing flowers of hawkmoth-pollinated species. Although spur lengths and nectar properties are similar among the sympatric <i>Satyrium</i> species, spurs of <i>S. longicolle</i> are horizontal, while spurs of hawkmoth-pollinated congeners are pendant, coinciding with different foraging behaviors of the respective pollinators. Spur length of <i>S. longicolle</i> co-varied geographically with horsefly proboscis length. The orchid is self-compatible but reliant on pollinators for seed production. Crosses with a sympatric moth-pollinated congener resulted in seeds with embryos.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>The novel evolution of a specialized horsefly pollination system within <i>Satyrium</i> contributes to phenotypic diversity in the genus and results in strong ethological reproductive isolation with sympatric moth-pollinated congeners.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajb2.70221","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148222614","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}

{"title":"Erratum to “As prey and pollinators, insects increase reproduction and allow for outcrossing in the carnivorous plant Dionaea muscipula”","authors":"","doi":"10.1002/ajb2.70219","DOIUrl":"10.1002/ajb2.70219","url":null,"abstract":"<p>Hamon, L. E., E. Youngsteadt, R. E. Irwin, and C. E. Sorenson. 2024. As prey and pollinators, insects increase reproduction and allow for outcrossing in the carnivorous plant <i>Dionaea muscipula</i>. <i>American Journal of Botany</i> 111: e16279.</p><p>In Figure 2A, the “outcross” and “autogamous” bars are switched. The in-text explanation of the results is accurate, but the order of the bars in 2A does not reflect the x-axis labels.</p><p>We apologize for this error.</p>","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajb2.70219","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148203828","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}

{"title":"Camouflage via leaf mottling among North American Erythronium species increases with forest cover and deer abundance","authors":"Nathan G. Kiel","doi":"10.1002/ajb2.70208","DOIUrl":"10.1002/ajb2.70208","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Premise</h3>\u0000 \u0000 <p>Camouflage is a common plant strategy to avoid herbivory in sparsely vegetated environments. In temperate deciduous forests, leaf mottling is hypothesized to camouflage the nutrient-rich leaves of spring-active understory plants against the sparsely vegetated background of leaf litter. However, tests of this hypothesis remain limited to few species at small spatial scales.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>I used texture metrics to quantify leaf mottling variation across gradients in canopy cover (as a proxy for leaf background) and deer abundance (as a proxy for herbivore pressure) in five <i>Erythronium</i> species in central and eastern North America. Inter- and intraspecific leaf mottling roughness and evenness were quantified from iNaturalist community science observations. I then used ANOVA and multiple regression to determine whether mottling increased with canopy cover and deer abundance, as expected from the camouflage hypothesis.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Mottling roughness and evenness were greatest in <i>Erythronium</i> species known to occur in forests and diminished (i.e., leaves became less mottled) in prairie and woodland species. Mottling also varied intraspecifically for three species (and nearly so for a fourth), tending to increase with greater canopy cover. This mottling–canopy-cover relationship was strongest in areas of high to very high deer abundance.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Greater <i>Erythronium</i> leaf mottling with canopy cover and deer abundance indicates that this trait may act as an herbivore avoidance strategy in forests. While mottling has also been hypothesized to facilitate photoprotection in high-light environments, minimal leaf mottling in prairie and woodland species suggests photoprotection is an unlikely mechanism for the genus studied here.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147939838","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}

{"title":"Biological invasions by non-native plant species increase net primary productivity: Unexpected implications for ecological theory","authors":"Ragan M. Callaway,&nbsp;Christoph Rosche,&nbsp;Jacob E. Lucero","doi":"10.1002/ajb2.70217","DOIUrl":"10.1002/ajb2.70217","url":null,"abstract":"","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajb2.70217","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148175084","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}

{"title":"Integrative utilization of genomic resources for improved phylogenetic resolution in Sonerileae (Melastomataceae)","authors":"Luo Chen,&nbsp;Marie Claire Veranso-Libalah,&nbsp;J. Peter Quakenbush,&nbsp;Ying Liu,&nbsp;Fabián A. Michelangeli,&nbsp;Diego F. Morales-Briones,&nbsp;Gudrun Kadereit","doi":"10.1002/ajb2.70216","DOIUrl":"10.1002/ajb2.70216","url":null,"abstract":"<div>\u0000 \u0000 \u0000 <section>\u0000 \u0000 <h3> Premise</h3>\u0000 \u0000 <p>Advances in new next-generation sequencing (NGS) methods have revolutionized phylogenetics, yet challenges remain in effectively utilizing data from a wide range of sources. A well-resolved and broadly sampled phylogeny for Sonerileae, the second-largest tribe in Melastomataceae, is still lacking, hindering our understanding of its phylogenetic relationships and evolutionary history.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Methods</h3>\u0000 \u0000 <p>We combined target enrichment, genome skimming, RNA-Seq, and deep genome skimming (DGS) data to reconstruct the phylogenetic relationships within Sonerileae. We sampled 184 accessions representing 41 of the 47 genera in the tribe, including new sequences obtained with Hyb-Seq and DGS, and publicly available sequences. A newly developed reference comprising 5626 loci was employed to integrate data from different sources.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Results</h3>\u0000 \u0000 <p>Our analyses produced a well-supported, near-comprehensive phylogeny for the tribe, outperforming previous and current studies that used only target enrichment probe sets as the reference for loci extraction. For the long-unresolved Asian Sonerileae, our phylogeny is comparable to that of a study focused specifically on that group, where a draft genome was required to identify orthologs.</p>\u0000 </section>\u0000 \u0000 <section>\u0000 \u0000 <h3> Conclusions</h3>\u0000 \u0000 <p>Our analyses demonstrate that using an inclusive reference file enables the integration of genomic data generated with different sequencing strategies. We provide an effective approach for combining heterogeneous data for phylogenomic analysis.</p>\u0000 </section>\u0000 </div>","PeriodicalId":7691,"journal":{"name":"American Journal of Botany","volume":"113 6","pages":""},"PeriodicalIF":2.8,"publicationDate":"2026-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ajb2.70216","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148215850","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}