New Phytologist最新文献

{"title":"Corrigendum to: New mechanism of strigolactone-regulated cold tolerance in tomato","authors":"","doi":"10.1111/nph.70027","DOIUrl":"https://doi.org/10.1111/nph.70027","url":null,"abstract":"<p><i>New Phytologist</i> (2025) <b>245</b>, 921–923, doi: 10.1111/nph.20165.</p>\u0000<p>Since its publication, the authors of Li <i>et al</i>. (<span>2025</span>) have identified an error in their article. The label ‘Lysosome’ in Fig. 1 has been corrected to ‘Vacuole’. The correct Fig. 1 and associated legend are given below.</p>\u0000<p>We apologize to our readers for this error.</p>\u0000<p><b>Corrected Fig. 1:</b></p>\u0000<figure><picture>\u0000<source media=\"(min-width: 1650px)\" srcset=\"/cms/asset/5328cfa2-24c6-4072-b063-f865d9b25d79/nph70027-fig-0001-m.jpg\"/><img alt=\"Details are in the caption following the image\" data-lg-src=\"/cms/asset/5328cfa2-24c6-4072-b063-f865d9b25d79/nph70027-fig-0001-m.jpg\" loading=\"lazy\" src=\"/cms/asset/f5899884-1db7-4424-a20c-e593fd5cbb74/nph70027-fig-0001-m.png\" title=\"Details are in the caption following the image\"/></picture><figcaption>\u0000<div><strong>Fig. 1<span style=\"font-weight:normal\"></span></strong><div>Open in figure viewer<i aria-hidden=\"true\"></i><span>PowerPoint</span></div>\u0000</div>\u0000<div>Strigolactones positively regulate cold tolerance by activating HY5-dependent autophagy in tomato. In the wild-type, cold stress-induced strigolactone biosynthesis increased the protein level of HY5, which directly bound to and activated the promoter of <i>ATG18a</i> to increase autophagy, thereby facilitating cold-induced protein aggregation and degradation to enhance cold tolerance in tomato. In the <i>hy5</i> mutant, the expression levels of <i>ATG18a</i> and the formation of autophagosomes show little response to cold stress-induced strigolactone biosynthesis, and the accumulation of ubiquitinated proteins leads to impaired cold tolerance in tomato.</div>\u0000</figcaption>\u0000</figure>\u0000<p>Author for correspondence:</p>\u0000<p><i>Hong Yu</i></p>\u0000<p><i>Email:</i> hyu@genetics.ac.cn</p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"65 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143485896","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}

{"title":"HalALMT1 mediates malate efflux in the cortex of mature cluster rootlets of Hakea laurina, occurring naturally in severely phosphorus-impoverished soil","authors":"Hirotsuna Yamada, Lydia Ratna Bunthara, Akira Tanaka, Takuro Kohama, Hayato Maruyama, Wakana Tanaka, Sho Nishida, Tantriani, Akira Oikawa, Keitaro Tawaraya, Toshihiro Watanabe, Shu Tong Liu, Patrick M. Finnegan, Hans Lambers, Takayuki Sasaki, Jun Wasaki","doi":"10.1111/nph.70010","DOIUrl":"https://doi.org/10.1111/nph.70010","url":null,"abstract":"&lt;h2&gt; Introduction&lt;/h2&gt;\u0000&lt;p&gt;Plants in extremely phosphorus (P)-impoverished habitats, such as southwest Australia, possess highly efficient P-acquisition strategies. For example, most Proteaceae, one of the dominant plant families in southwest Australia, form cluster roots under low-P conditions, characterized by a large number of determinate rootlets developing from a short region of the root axis (Shane &amp; Lambers, &lt;span&gt;2005&lt;/span&gt;). Cluster roots are short-lived, typically lasting &lt;i&gt;c&lt;/i&gt;. 3 wk, and develop periodically along the root axis (Shane &amp; Lambers, &lt;span&gt;2005&lt;/span&gt;). Cluster roots from most plants that express them release massive amounts of carboxylates and acid phosphatase at maturity. Acid phosphatase hydrolyzes organic P (Shane &amp; Lambers, &lt;span&gt;2005&lt;/span&gt;), which is important since plants only take up inorganic phosphate at physiological pH, primarily as H&lt;sub&gt;2&lt;/sub&gt;PO&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;−&lt;/sup&gt; (Lambers, &lt;span&gt;2022&lt;/span&gt;). The carboxylates released are mainly citrate and malate, which bind to P-sorption sites on soil particles, displacing P (Roelofs &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2001&lt;/span&gt;). Shane &lt;i&gt;et al&lt;/i&gt;. (&lt;span&gt;2004a&lt;/span&gt;) reported that &lt;i&gt;Hakea prostrata&lt;/i&gt; (Proteaceae) exhibits a burst of carboxylate exudation from mature cluster roots when the rootlets reach their final length at &lt;i&gt;c&lt;/i&gt;. 12 d after emergence. Citrate and malate exudation are particularly dominant. The release of protons (H&lt;sup&gt;+&lt;/sup&gt;) provides the driving force for carboxylate release and act as counterions to balance the negative charge of the released carboxylates, thereby acidifying the rhizosphere (Shane &amp; Lambers, &lt;span&gt;2005&lt;/span&gt;; Lambers &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2018&lt;/span&gt;).&lt;/p&gt;\u0000&lt;p&gt;Aluminum (Al) released from soil minerals into the soil solution under acidic conditions is mainly in the form Al(H&lt;sub&gt;2&lt;/sub&gt;O)&lt;sub&gt;6&lt;/sub&gt;&lt;sup&gt;3+&lt;/sup&gt; (referred to hereafter as Al&lt;sup&gt;3+&lt;/sup&gt;), although there are also mononuclear hydrolysis products such as Al(OH)&lt;sup&gt;2+&lt;/sup&gt;, Al(OH)&lt;sub&gt;2&lt;/sub&gt;&lt;sup&gt;+&lt;/sup&gt;, Al(OH)&lt;sub&gt;3&lt;/sub&gt;, and Al(OH)&lt;sub&gt;4&lt;/sub&gt;&lt;sup&gt;−&lt;/sup&gt; in the soil, depending on soil pH (Rengel, &lt;span&gt;2023&lt;/span&gt;). Trivalent Al&lt;sup&gt;3+&lt;/sup&gt; is toxic, making it a significant factor limiting plant productivity in acid soils (Kochian &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2004&lt;/span&gt;). While P sorption due to Al minerals is predominant at pH 5–6, the solubility of Al increases as the pH decreases and P sorption shifts to Fe minerals (Lindsay, &lt;span&gt;1979&lt;/span&gt;). Aluminum toxicity is particularly pronounced below pH 5 (Weber &amp; Peuker, &lt;span&gt;2020&lt;/span&gt;). Aluminum ions can be detoxified through chelation by carboxylates such as malate and citrate, which plants, particularly Proteaceae, exude from their roots (Álvarez-Fernández &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2014&lt;/span&gt;). Thus, carboxylate exudation contributes to both P mobilization and Al detoxification (Delhaize &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;1993&lt;/span&gt;; Lambers &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2018&lt;/span&gt;), which emphasizes the importance","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"43 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143485895","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}

{"title":"Trade-off between spring phenological sensitivities to temperature and precipitation across species and space in alpine grasslands over the Qinghai–Tibetan Plateau","authors":"Xiaoting Li, Wei Guo, Hao He, Hao Wang, Aimée Classen, Donghai Wu, Yixin Ma, Yunqiang Wang, Jin-Sheng He, Xiangtao Xu","doi":"10.1111/nph.70008","DOIUrl":"https://doi.org/10.1111/nph.70008","url":null,"abstract":"<p>\u0000</p><ul>\u0000<li>Elucidating climatic drivers of spring phenology in alpine grasslands is critical. However, current statistical estimates of spring phenological sensitivities to temperature and precipitation (β_T and β_P) might be biased and their variability across sites and species are not fully explained.</li>\u0000<li>We benchmarked species-level β_T and β_P statistically inferred from historical records with observations from a field manipulative experiment. We then analyzed landscape scale β_T and β_P estimated from the best statistical approach in the benchmark analysis across 57 alpine grassland sites in the Qinghai–Tibetan Plateau.</li>\u0000<li>Compared with manipulative experiment results, process-agnostic regression-based approaches underestimate β_T by 2.36–3.87 d °C^<i>−</i>1 (54–88%) while process-based phenology model fitting predicts comparable β_T and β_P. Process-based estimates of β_T and β_P are negatively correlated across species (<i>R</i> = −0.94, <i>P</i> &lt; 0.01) and across sites (<i>R</i> = −0.45, <i>P</i> &lt; 0.01). β_T is positively correlated with mean annual temperature, and β_P is negatively correlated with elevation at the regional scale.</li>\u0000<li>Using process-based model fitting can better estimate spring phenological sensitivities to climate. The trade-off between β_T and β_P contributes to species-level and site-level variabilities in phenological sensitivities in alpine grasslands, which needs to be incorporated in predicting future phenological changes.</li>\u0000</ul><p></p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"7 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143485954","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}

{"title":"Time-integrated δ2H in n-alkanes and carbohydrates from boreal needles reveal intra-annual physiological and environmental signals","authors":"Charlotte Angove, Guido L. B. Wiesenberg, Marco M. Lehmann, Matthias Saurer, Yu Tang, Elina Sahlstedt, Tatjana C. Speckert, Pauliina P. Schiestl-Aalto, Katja T. Rinne-Garmston","doi":"10.1111/nph.20448","DOIUrl":"https://doi.org/10.1111/nph.20448","url":null,"abstract":"&lt;h2&gt; Introduction&lt;/h2&gt;\u0000&lt;p&gt;The stable H isotope ratio (δ&lt;sup&gt;2&lt;/sup&gt;H) in plant-derived biomarkers (e.g. &lt;i&gt;n&lt;/i&gt;-alkanes, tree-ring cellulose) has proven value, and profound potential, for insights into paleoenvironmental reconstructions and plant stress response (Dawson &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2004&lt;/span&gt;; Kahmen &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2013&lt;/span&gt;; Lehmann &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2024a&lt;/span&gt;). A key barrier that limits their reliability and implementation is that their H isotope composition can be affected by multiple isotope fractionating (Zhu &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2020&lt;/span&gt;; Holloway-Phillips &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2022&lt;/span&gt;; Baan &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2023a&lt;/span&gt;) and nonfractionating (i.e., mixing; Liu &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2021&lt;/span&gt;) processes. This can interfere with meaningful environmental or physiological insights from δ&lt;sup&gt;2&lt;/sup&gt;H values in plant bioindicators (Baan &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2023b&lt;/span&gt;). Undoubtedly, they will benefit from a thorough examination of how the δ&lt;sup&gt;2&lt;/sup&gt;H of plant compounds correlates with environmental and physiological signals under natural conditions.&lt;/p&gt;\u0000&lt;h3&gt; Background&lt;/h3&gt;\u0000&lt;p&gt;&lt;i&gt;n&lt;/i&gt;-Alkanes with chain lengths of 25–35 carbons are straight-chained hydrocarbons found in leaf epicuticular waxes, which can be key contributors to the δ&lt;sup&gt;2&lt;/sup&gt;H of &lt;i&gt;n&lt;/i&gt;-alkanes (δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;alkane&lt;/sub&gt;, Table 1) in soils, used to interpret past climate (Dawson &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2004&lt;/span&gt;; Schefuß &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2005&lt;/span&gt;; Thomas &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2021&lt;/span&gt;). Overall, δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;alkane&lt;/sub&gt; acts as an indicator of δ&lt;sup&gt;2&lt;/sup&gt;H in precipitation (δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;precip&lt;/sub&gt;), modified by leaf evaporative enrichment, local meteorological factors (i.e. evapotranspiration (ET) and relative humidity (RH)) and source water (Sachse &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2006&lt;/span&gt;), which is further modified by biochemical isotope fractionation (Newberry &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2015&lt;/span&gt;; Baan &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2023a&lt;/span&gt;,&lt;span&gt;b&lt;/span&gt;). δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;alkane&lt;/sub&gt; in leaves can be related to δ&lt;sup&gt;2&lt;/sup&gt;H in leaf water (δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;l-water&lt;/sub&gt;; Freimuth &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2017&lt;/span&gt;; Zhu &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2020&lt;/span&gt;; Lehmann &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2024b&lt;/span&gt;), though not necessarily (McInerney &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2011&lt;/span&gt;), and evidence from seasonal δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;alkane&lt;/sub&gt; variability of new needles in a natural forest shows that the δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;l-water&lt;/sub&gt; signal can be obscured, potentially by changes in carbohydrate sourcing throughout the season (Newberry &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2015&lt;/span&gt;). Furthermore, the δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;alkane&lt;/sub&gt; in new leaf tissue can record a shift from heterotrophy to autotrophy (Tipple &amp; Ehleringer, &lt;span&gt;2018&lt;/span&gt;), and if leaves are sampled before autotrophy has been fully established, then the δ&lt;sup&gt;2&lt;/sup&gt;H&lt;sub&gt;l-water&lt;/sub&gt; signal may be obscured (Zhu &lt;i&gt;et al&lt;/i&gt;., &lt;span&gt;2020&lt;/span&gt;).&lt;/p&gt;\u0000&lt;div&gt;\u0000&lt;header&gt;&lt;span&gt;","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"15 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462994","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}

{"title":"Mast hindcasts reveal pervasive effects of extreme drought on a foundational conifer species","authors":"Andreas P. Wion, Ian S. Pearse, Max Broxson, Miranda D. Redmond","doi":"10.1111/nph.20321","DOIUrl":"https://doi.org/10.1111/nph.20321","url":null,"abstract":"<p>\u0000</p><ul>\u0000<li>Predicting seed production is challenging because many plants produce highly variable crops among years (i.e. masting), but doing so can inform forest management, conservation, and our understanding of ecosystem trajectories in a changing climate. We evaluated the ability of an existing model to forecast masting in an ecologically and culturally important tree species in the southwestern United States, <i>Pinus edulis</i>.</li>\u0000<li>Annual seed cone production was predicted using cross-validation techniques on two unique out-of-sample datasets, representing different collection methods and spatial scales (cone scars and cone counts). We then hindcasted this model into the historical past to evaluate whether seed production has declined with the onset of extreme drought conditions in western North America.</li>\u0000<li>The evaluated model had fair skill, with root-mean-squared error of 6%. The model had better skill predicting the interannual variability within a site than among sites (i.e. within years). Hindcast analyses indicated recent (2000–2024) mean annual cone production was 30.6% lower than in the past century (1900–1999).</li>\u0000<li>Mast forecasts are within reach, but much room remains for improvement. Forecasts may be a powerful tool to anticipate the effects of climate change on forests and woodlands.</li>\u0000</ul><p></p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"25 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143462996","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}

{"title":"Polyploidization leads to salt stress resilience via ethylene signaling in citrus plants","authors":"Xin Song,&nbsp;Miao Zhang,&nbsp;Ting-Ting Wang,&nbsp;Yao-Yuan Duan,&nbsp;Jie Ren,&nbsp;Hu Gao,&nbsp;Yan-Jie Fan,&nbsp;Qiang-Ming Xia,&nbsp;Hui-Xiang Cao,&nbsp;Kai-Dong Xie,&nbsp;Xiao-Meng Wu,&nbsp;Fei Zhang,&nbsp;Si-Qi Zhang,&nbsp;Ying Huang,&nbsp;Adnane Boualem,&nbsp;Abdelhafid Bendahmane,&nbsp;Feng-Quan Tan,&nbsp;Wen-Wu Guo","doi":"10.1111/nph.20428","DOIUrl":"10.1111/nph.20428","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>Polyploidization is a common occurrence in the evolutionary history of flowering plants, significantly contributing to their adaptability and diversity. However, the molecular mechanisms behind these adaptive advantages are not well understood.</li>\u0000 \u0000 \u0000 <li>Through comprehensive phenotyping of diploid and tetraploid clones from <i>Citrus</i> and <i>Poncirus</i> genera, we discovered that genome doubling significantly enhances salt stress resilience. Epigenetic and transcriptomic analyses revealed that increased ethylene production in the roots of tetraploid plants was associated with hypomethylation and enhanced chromatin accessibility of the <i>ACO1</i> gene. This increased ethylene production activates the transcription of reactive oxygen species scavenging genes and stress-related hormone biosynthesis genes. Consequently, tetraploid plants exhibited superior root functionality under salt stress, maintaining improved cytosolic K⁺/Na⁺ homeostasis.</li>\u0000 \u0000 \u0000 <li>To genetically validate the link between salt stress resilience and <i>ACO1</i> expression, we generated overexpression and knockout lines, confirming the central role of <i>ACO1</i> expression regulation following genome doubling in salt stress resilience.</li>\u0000 \u0000 \u0000 <li>Our work elucidates the molecular mechanisms underlying the role of genome doubling in stress resilience. We also highlight the importance of chromatin dynamics in fine-tuning ethylene gene expression and activating salt stress resilience pathways, offering valuable insights into plant adaptation and crop genome evolution.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"246 1","pages":"176-191"},"PeriodicalIF":8.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143450509","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}

{"title":"Vertical canopy gradients of respiration drive plant carbon budgets and leaf area index","authors":"Jessica F. Needham,&nbsp;Sharmila Dey,&nbsp;Charles D. Koven,&nbsp;Rosie A. Fisher,&nbsp;Ryan G. Knox,&nbsp;Julien Lamour,&nbsp;Gregory Lemieux,&nbsp;Marcos Longo,&nbsp;Alistair Rogers,&nbsp;Jennifer Holm","doi":"10.1111/nph.20423","DOIUrl":"10.1111/nph.20423","url":null,"abstract":"<p>\u0000 \u0000 </p>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"246 1","pages":"144-157"},"PeriodicalIF":8.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/nph.20423","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143460107","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}

{"title":"Functional dissection of three pollen-side quantitative trait loci against multiple stylar unilateral incompatibility mechanisms in Solanum pennellii LA0716","authors":"Wenchun Ma,&nbsp;Yumei Li,&nbsp;Haoran Gao,&nbsp;Yi Ma,&nbsp;Zhe Zhu,&nbsp;Xuna Wu,&nbsp;Ian T. Baldwin,&nbsp;Han Guo","doi":"10.1111/nph.20456","DOIUrl":"10.1111/nph.20456","url":null,"abstract":"<div>\u0000 \u0000 <p>\u0000 \u0000 </p><ul>\u0000 \u0000 \u0000 <li>In <i>Solanum pennellii</i> LA0716, three stylar UI (sui) factors and one pollen UI (pui) factor were shown to be involved in S-RNase-independent unilateral incompatibility (UI). However, additional pui factor(s) and the antagonistic relationships among pui and sui factors remain to be investigated.</li>\u0000 \u0000 \u0000 <li>Quantitative trait loci (QTL) mapping, functional and genetic analysis of LA0716-based crosses, and integrated multi-omics data are used to identify <i>pui</i> QTLs and functionally dissect <i>pui</i> QTLs from various types of stylar UI.</li>\u0000 \u0000 \u0000 <li>In addition to the reported <i>pui10.1</i> (<i>SpFPS2</i>), two <i>pui</i> QTLs (<i>pui6.2</i> and <i>pui12.1</i>) were identified. In LA0716 styles, the three <i>pui</i> loci additively attenuate stylar UI, among which <i>pui6.2</i> and <i>pui12.1</i> appear to antagonize the sui factor, SpHT, via independent mechanisms. Furthermore, <i>pui12.1′s</i> function was found to be conserved in the SC styles of <i>Solanum habrochaites</i> LA0407 and <i>Solanum chmielewskii</i> LA1028. Candidate genes linked to <i>pui6.2</i> and <i>pui12.1</i> are identified for further analysis.</li>\u0000 \u0000 \u0000 <li>This study reveals several mechanisms for three newly described types of stylar UI and the corresponding <i>pui</i> QTLs in LA0716, which advance our understanding of the complex genetic mechanisms underlying UI in the tomato clade.</li>\u0000 </ul>\u0000 \u0000 </div>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"246 1","pages":"298-316"},"PeriodicalIF":8.3,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143460105","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}

{"title":"The synaptonemal complex stabilizes meiosis in allotetraploid Brassica napus and autotetraploid Arabidopsis thaliana","authors":"Yashi Zhang, Fei Lv, Ziyang Wan, Miaowei Geng, Lei Chu, Bowei Cai, Jixin Zhuang, Xianhong Ge, Arp Schnittger, Chao Yang","doi":"10.1111/nph.70015","DOIUrl":"https://doi.org/10.1111/nph.70015","url":null,"abstract":"Summary<jats:list list-type=\"bullet\"> <jats:list-item>Polyploidy plays a key role in genome evolution and crop improvement. The formation of bivalents rather than multivalents during meiosis of polyploids is essential to ensure meiotic stability and optimal fertility of the species. However, the mechanisms preventing multivalent recombination in polyploids remain obscure.</jats:list-item> <jats:list-item>We studied the role of the synaptonemal complex in polyploid meiosis by mutating the transverse filament component ZYP1 in allotetraploid <jats:italic>Brassica napus</jats:italic> and autotetraploid Arabidopsis.</jats:list-item> <jats:list-item>In <jats:italic>B. napus</jats:italic>, a mutation of all four <jats:italic>ZYP1</jats:italic> copies results in multivalent pairing accompanied by pairing partner switches, nonhomologous recombination, and interlocks, leading to severe chromosome entanglement and fertility abortion. The presence of only one functional allele of <jats:italic>ZYP1</jats:italic> compromises synapsis and multivalent associations occur at nonsynaptic regions. Moreover, the disruption of ZYP1 causes a complete shift from predominantly multivalent pairing to exclusively multivalent pairing in pachytene cells of synthetic autotetraploid <jats:italic>Arabidopsis thaliana</jats:italic>, resulting in a dramatic increase in the frequency of multivalents at metaphase I.</jats:list-item> <jats:list-item>We conclude that the ZYP1‐mediated assembly of the synaptonemal complex facilitates the pairwise homologous pairing and recombination in both allopolyploid and autopolyploid species and plays a key role in ensuring a diploid‐like bivalent formation in polyploid meiosis.</jats:list-item> </jats:list>","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"209 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143435025","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}

{"title":"Building microbial synthetic communities: get inspired by the design of synthetic plant communities","authors":"Paloma Durán, Fabienne Vailleau, Fabrice Roux","doi":"10.1111/nph.70011","DOIUrl":"https://doi.org/10.1111/nph.70011","url":null,"abstract":"In the last decade, the generation of host-associated microbial culture collections has allowed the fine disentangling of complex relationships between commensal microbes and their hosts, and within-microbiota interactions. Specifically, these culture collections have been used to construct microbial synthetic communities (SynComs), which allow the reconstruction of host microbiota in laboratory conditions. In three recent perspective publications, the importance of this tool has been highlighted, and the ground rules of utilization and designing of such SynComs have been laid out. It is important to note that although microbial SynComs are used to understand intricate ecological interactions occurring in natural conditions, the intraspecific genetic diversity present in natural microbial communities has been seldom considered in the design of interspecific microbial SynComs so far. In this Viewpoint, we therefore argue that designing microbial SynComs could benefit from recent developments in the design of synthetic plant communities, or plant SynComs. For instance, considering intraspecific plant genetic diversity and its effects on intra- and interspecific plant–plant interactions appears essential to better understand and predict highly productive and stable plant communities. Therefore, considering genetic diversity within microbial species undoubtedly represents an exciting opportunity to design innovative microbial SynComs.","PeriodicalId":214,"journal":{"name":"New Phytologist","volume":"2 1","pages":""},"PeriodicalIF":9.4,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143427464","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}