Journal of Experimental Botany最新文献_第8页

Mitogen-activated protein kinase-mediated regulation of plant specialized metabolism. 丝裂原活化蛋白激酶介导的植物特化代谢调控。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae400

Yan Zhou, Sanjay Kumar Singh, Barunava Patra, Yongliang Liu, Sitakanta Pattanaik, Ling Yuan

{"title":"Mitogen-activated protein kinase-mediated regulation of plant specialized metabolism.","authors":"Yan Zhou, Sanjay Kumar Singh, Barunava Patra, Yongliang Liu, Sitakanta Pattanaik, Ling Yuan","doi":"10.1093/jxb/erae400","DOIUrl":"10.1093/jxb/erae400","url":null,"abstract":"Post-transcriptional and post-translational modification of transcription factors (TFs) and pathway enzymes significantly affect the stress-stimulated biosynthesis of specialized metabolites (SMs). Protein phosphorylation is one of the conserved and ancient mechanisms that critically influences many biological processes including specialized metabolism. The phosphorylation of TFs and enzymes by protein kinases (PKs), especially the mitogen-activated protein kinases (MAPKs), is well studied in plants. While the roles of MAPKs in plant growth and development, phytohormone signaling, and immunity are well elucidated, significant recent advances have also been made in understanding the involvement of MAPKs in specialized metabolism. However, a comprehensive review highlighting the significant progress in the past several years is notably missing. This review focuses on MAPK-mediated regulation of several important SMs, including phenylpropanoids (flavonoids and lignin), terpenoids (artemisinin and other terpenoids), alkaloids (terpenoid indole alkaloids and nicotine), and other nitrogen- and sulfur-containing SMs (camalexin and indole glucosinolates). In addition to MAPKs, other PKs also regulate SM biosynthesis. For comparison, we briefly discuss the regulation by other PKs, such as sucrose non-fermenting-1 (SNF)-related protein kinases (SnRKs) and calcium-dependent protein kinases (CPKs). Furthermore, we provide future perspectives in this active area of research.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"262-276"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142289026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

OPDA signaling channels resource (e-) allocation from the photosynthetic electron transfer chain to plastid cysteine biosynthesis in defense activation. OPDA 信号在防御激活过程中将资源（e-）从光合 ETC 分配到质体半胱氨酸生物合成。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae421

Ashna Adhikari, Simrandeep Kaur, Farhad Forouhar, Shiv Kale, Sang-Wook Park

{"title":"OPDA signaling channels resource (e-) allocation from the photosynthetic electron transfer chain to plastid cysteine biosynthesis in defense activation.","authors":"Ashna Adhikari, Simrandeep Kaur, Farhad Forouhar, Shiv Kale, Sang-Wook Park","doi":"10.1093/jxb/erae421","DOIUrl":"10.1093/jxb/erae421","url":null,"abstract":"A primary precursor of jasmonates, 12-oxo-phytodienoic acid (OPDA), is an autonomous hormone signal that activates and fine-tunes plant defense responses, as well as growth and development. However, the architecture of its signaling circuits remains largely elusive. Here we describe that OPDA signaling drives photosynthetic reductant powers toward sulfur assimilation in the chloroplasts, incorporating sulfide into cysteine. Under stressed states, OPDA-accumulated in the chloroplasts-binds and promotes cyclophilin 20-3, an OPDA receptor, to transfer electrons from thioredoxin F2, an electron carrier in the photosynthesis reaction, to serine acetyltransferase 1 (SAT1). The charge carrier (H+, e-) then splits dimeric SAT1 trimers in half to signal the recruitment of dimeric O-acetylserine(thiol)lyase B, forming a hetero-oligomeric cysteine synthase complex (CSC). CSC formation and its metabolic products (especially glutathione) then coordinate redox-resolved retrograde signaling from the chloroplasts to the nucleus in adjusting expression of OPDA-responsive genes such as GLUTAREDOXIN 480 and CYTOCHROME P450, and triggering defense responses against various ecological constraints such as salinity and excess oxidants, as well as mechanical wounding. We thus conclude that OPDA signaling regulates a unique metabolic switch in channeling light input into outputs that fuel/shape a multitude of physiological processes, optimizing plant growth fitness and survival capacity under a range of environmental stress cues.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"594-606"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

WOX1 controls leaf serration development via temporally restricting BRASSINAZOLE RESISTANT 1 and CUP SHAPED COTYLEDON 3 expression in Arabidopsis. WOX1 通过在时间上限制拟南芥中 BZR1 和 CUC3 的表达来控制叶锯齿的发育。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae443

Lian Xu, Nimeng Fang, Ting Lu, Toshiaki Tameshige, Miyuki T Nakata, Yuli Jiang, Li Tan, Hai He, Xuelin Zhang, Yimei Huang, Caiming Li, Zhenbiao Yang, Wenxin Tang, Shingo Nagawa

{"title":"WOX1 controls leaf serration development via temporally restricting BRASSINAZOLE RESISTANT 1 and CUP SHAPED COTYLEDON 3 expression in Arabidopsis.","authors":"Lian Xu, Nimeng Fang, Ting Lu, Toshiaki Tameshige, Miyuki T Nakata, Yuli Jiang, Li Tan, Hai He, Xuelin Zhang, Yimei Huang, Caiming Li, Zhenbiao Yang, Wenxin Tang, Shingo Nagawa","doi":"10.1093/jxb/erae443","DOIUrl":"10.1093/jxb/erae443","url":null,"abstract":"Leaves have evolved shape diversity, ranging from simple leaves with a smooth margin to complicated shapes with toothed/serrated, lobed, and dissected leaves with leaflets. In the model plant Arabidopsis thaliana with simple leaves producing a serrated margin, boundary regulatory factor genes CUP SHAPED COTYLEDON 2 (CUC2) and CUC3 play important roles in promoting leaf initiation and maintenance of serration. Stem cell-related WUSCHEL-RELATED HOMEOBOX1 (WOX1) and PRESSED FLOWER (PRS)/WOX3 are also essential for leaf margin morphogenesis, but the role of WOX1 and PRS as well as the relationships between CUCs and WOXs for tooth development are unclear. In this study, we found that WOX1, but not PRS, prevents overproduction of number of teeth and excessive tooth size by limiting CUC3 expression to a moderate level in a temporally regulated manner. We also revealed that BRASSINAZOLE RESISTANT 1 (BZR1), a known regulator of plant development including boundary regions, is involved in WOX1 negative regulation of tooth development by repressing CUC3 expression during the initiation/early stage of tooth development. WOX1 parallelly limits BZR1 and CUC3 expression from the late stage of the first two teeth, while it restricts CUC3 activity in a BZR1-dependent manner from the initiation/early stage of subsequently developed teeth. This study uncovers a new mechanism for WOX1 in fine-tuning the leaf margin geometry.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"478-492"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11714755/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142545830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Revisiting the early light-induced protein hypothesis in the sustained thermal dissipation mechanism in yew leaves. 重新审视紫杉叶片持续散热机制中的早期光诱导蛋白质假说。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae412

Zihao Ye, Mina Sawada, Makiko Iwasa, Ryo Moriyama, Debayan Dey, Miyu Furutani, Mitsutoshi Kitao, Toshihiko Hara, Ayumi Tanaka, Junko Kishimoto, Makio Yokono, Seiji Akimoto, Atsushi Takabayashi, Ryouichi Tanaka

{"title":"Revisiting the early light-induced protein hypothesis in the sustained thermal dissipation mechanism in yew leaves.","authors":"Zihao Ye, Mina Sawada, Makiko Iwasa, Ryo Moriyama, Debayan Dey, Miyu Furutani, Mitsutoshi Kitao, Toshihiko Hara, Ayumi Tanaka, Junko Kishimoto, Makio Yokono, Seiji Akimoto, Atsushi Takabayashi, Ryouichi Tanaka","doi":"10.1093/jxb/erae412","DOIUrl":"10.1093/jxb/erae412","url":null,"abstract":"Overwintering evergreen trees in boreal regions continuously convert absorbed light energy into heat through a process known as sustained thermal dissipation. To better understand this mechanism, this study examined the alterations in the photosynthetic apparatus and transcriptomes of yew (Taxus cuspidata) leaves throughout the year, comparing sun-exposed and shaded leaves. The Y(II) parameter, conventionally used to estimate the quantum yield of photosystem II (PSII), indicated the occurrence of temperature-dependent thermal dissipation during winter. On the other hand, the levels of photosystem subunits, including the D1 subunit of the PSII reaction center, remained relatively stable year-round, indicating that typical photoinhibition is unlikely to occur. Time-resolved chlorophyll fluorescence analysis revealed that heat dissipation at the PSII antenna is prominent in winter. Winter transcriptomes are notably characterized by a predominance of Elip transcripts encoding early light-induced protein (ELIP), which constitute 20% of the total transcripts, as deduced from RNA-seq analysis. Furthermore, ELIP protein concentration increased to nearly half that of the major light-harvesting complexes. The predicted structure of ELIP includes potential chlorophyll a and carotenoid binding sites. These findings, taken together with a previous report showing ELIP capacity for energy dissipation, lead to a re-evaluation of its significant role in sustained thermal dissipation.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"513-531"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142372034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Light and temperature signals are integrated through a phytochrome B-dependent gene regulatory network in rice. 水稻中的光照和温度信号通过依赖于phyB的基因调控网络进行整合。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae402

Bruno Catarino, Luís Andrade, André M Cordeiro, Pedro Carvalho, Pedro M Barros, Miguel A Blázquez, Nelson J M Saibo

{"title":"Light and temperature signals are integrated through a phytochrome B-dependent gene regulatory network in rice.","authors":"Bruno Catarino, Luís Andrade, André M Cordeiro, Pedro Carvalho, Pedro M Barros, Miguel A Blázquez, Nelson J M Saibo","doi":"10.1093/jxb/erae402","DOIUrl":"10.1093/jxb/erae402","url":null,"abstract":"Angiosperms are the most dominant land plant flora and have colonized most of the terrestrial habitats, thriving in different environmental conditions, among which light and temperature play a crucial role. In the eudicot Arabidopsis thaliana, light and temperature are integrated into a phytochrome B (phyB)-dependent signalling network that regulates development. However, whether this signal integration controls the development in other angiosperm lineages and whether phyB is a conserved hub of this integratory network in angiosperms is unclear. We used a combination of phylogenetic, phenotypic, and transcriptomic analyses to understand the phyB-dependent light and temperature integratory network in the monocot Oryza sativa and infer its conservation in angiosperms. Here, we showed that light and temperature co-regulate rice growth through a phyB-dependent regulatory network that shares conserved features between O. sativa and A. thaliana. Despite the conservation of the components of this regulatory network, the transcriptional regulation between the components has changed qualitatively since monocots and eudicots diverged (~192-145 million years ago). The evolutionary flexibility of this integratory network might underlie the successful adaptation of plants to diverse ecological niches. Furthermore, our findings provide promising candidate genes whose activity and expression can be fine-tuned to improve plant growth and productivity in a warming planet.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"562-575"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142390990","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction to: Invasion of the stigma by oomycete pathogenic hyphae or pollen tubes: striking similarities and differences. 更正：卵菌致病菌丝或花粉管入侵柱头：惊人的相似之处和不同之处。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae478

引用次数: 0

Comparative transcriptomics pinpoints conserved and specific transcriptional responses to phosphorus limitation. 比较转录组学精确定位了对磷限制的保守和特异性转录反应。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae434

Pooja Pant, Hui Duan, Nick Krom, Raul Huertas, Wolf-Rüdiger Scheible

{"title":"Comparative transcriptomics pinpoints conserved and specific transcriptional responses to phosphorus limitation.","authors":"Pooja Pant, Hui Duan, Nick Krom, Raul Huertas, Wolf-Rüdiger Scheible","doi":"10.1093/jxb/erae434","DOIUrl":"https://doi.org/10.1093/jxb/erae434","url":null,"abstract":"Translating biological knowledge from Arabidopsis to crop species is important to advance agriculture and secure food production in the face of dwindling fertilizer resources and biotic and abiotic stresses. However, it is often not trivial to identify functional homologs (orthologs) of Arabidopsis genes in crops. Combining sequence and expression data can improve the correct prediction of orthologs. Here, we conducted a large-scale RNA sequencing based transcriptomics study of Arabidopsis, Medicago, Brachypodium, and Setaria grown side-by-side in phosphorus (P)-sufficient and P-limited conditions to generate comparable transcriptomics datasets. Comparison of top 200 P-limitation-induced genes in Arabidopsis revealed that ~80% of these genes have identifiable close homologs in the other three species but only ~50% retain their P-limitation response in the legume and grasses. Most of the hallmark genes of the P-starvation response were found conserved in all four species. This study reveals many known, novel, unannotated, conserved, and species-specific forms of regulation of the transcriptional P-starvation response. Identification and experimental verification of expressologs by independent RT-qPCR for P-limitation marker genes in Prunus showed the usefulness of comparative transcriptomics in pinpointing the functional orthologs in diverse crop species. This study provides an unprecedented resource for functional genomics and translational research to create P-efficient crops.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":"76 2","pages":"621-638"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142949856","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cytokinin-responsive RhRR1-RhSCL28 transcription factor module positively regulates petal size by promoting cell division in rose. 细胞分裂素响应型 RhRR1-RhSCL28 转录因子模块通过促进玫瑰细胞分裂正向调节花瓣大小。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae331

Weichan Jin, Feifei Gong, Yuanfei Zhang, Rui Wang, Huwei Liu, Yinghao Wei, Kaiyang Tang, Yunhe Jiang, Junping Gao, Xiaoming Sun

{"title":"Cytokinin-responsive RhRR1-RhSCL28 transcription factor module positively regulates petal size by promoting cell division in rose.","authors":"Weichan Jin, Feifei Gong, Yuanfei Zhang, Rui Wang, Huwei Liu, Yinghao Wei, Kaiyang Tang, Yunhe Jiang, Junping Gao, Xiaoming Sun","doi":"10.1093/jxb/erae331","DOIUrl":"10.1093/jxb/erae331","url":null,"abstract":"Petal size, a crucial trait in the economically important ornamental rose (Rosa hybrida), is synergistically regulated by cell division and cell expansion. Cell division primarily occurs during the early development of petals. However, the molecular mechanism underlying the regulation of petal size is far from clear. In this study, we isolated the transcription factor gene RhSCL28, which is highly expressed at the early stage of rose petal development and is induced by cytokinin. Silencing RhSCL28 resulted in a reduced final petal size and reduced cell number in rose petals. Further analysis showed that RhSCL28 participates in the regulation of cell division by positively regulating the expression of the cyclin genes RhCYCA1;1 and RhCYCB1;2. To explore the potential mechanism for cytokinin-mediated regulation of RhSCL28 expression, we investigated the cytokinin response factor RhRR1 and determined that it positively regulates RhSCL28 expression. Like RhSCL28, silencing RhRR1 also resulted in smaller petals by decreasing cell number. Taken together, these results reveal that the RhRR1-RhSCL28 module positively regulates petal size by promoting cell division in rose.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"381-392"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142125922","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolutionary origins, macroevolutionary dynamics, and climatic niche space of the succulent plant syndrome in the Caryophyllales. 石竹目多肉植物综合征的进化起源、宏观进化动态和气候生态位空间。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae428

Marilyn Vásquez-Cruz, Israel Loera, Melina Del Angel, Miguel Nakamura, Kevin R Hultine, Tania Hernández-Hernández

{"title":"Evolutionary origins, macroevolutionary dynamics, and climatic niche space of the succulent plant syndrome in the Caryophyllales.","authors":"Marilyn Vásquez-Cruz, Israel Loera, Melina Del Angel, Miguel Nakamura, Kevin R Hultine, Tania Hernández-Hernández","doi":"10.1093/jxb/erae428","DOIUrl":"10.1093/jxb/erae428","url":null,"abstract":"The succulent plant syndrome is defined by the coordination of traits that enhance internal water storage within plant tissues. Although distributed globally in different habitats, succulent plants are thought to have evolved to avoid drought in arid regions, due to trait modifications that decrease tissue water deficits. We evaluated the evolution and the ecological significance of the succulent strategy at a global scale by comparing the climatic niche of species displaying succulence within the core Caryophyllales with their non-succulent relatives. We assembled and curated a worldwide dataset of 201 734 georeferenced records belonging to 5447 species within 28 families, and analyzed the climatic niche of species along with their origin and evolutionary trajectories using ecological niche modeling, phylogenetic regression, divergence dates, and ancestral state estimation. The results indicated that the core Caryophyllales have inhabited drylands since their origin in the Early Cretaceous. However, the succulent syndrome appeared and diversified during later geological periods. The climatic niche space of succulents is narrower than that of non-succulent relatives, but no niche separation was detected between groups. Our results support alternative interpretations of the environmental and ecological forces that spurred the origin and diversification of the succulent plant syndrome and the radiation of rich succulent lineages.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"576-593"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142467248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hybrid grain production in wheat benefits from synchronized flowering and high female flower receptivity. 小麦杂交种的谷物产量得益于同步开花和雌花受精率高。

IF 5.6 2区生物学

Journal of Experimental Botany Pub Date : 2025-01-10 DOI: 10.1093/jxb/erae430

Constanze Schmidt, Valentin Hinterberger, Norman Philipp, Jochen C Reif, Thorsten Schnurbusch

{"title":"Hybrid grain production in wheat benefits from synchronized flowering and high female flower receptivity.","authors":"Constanze Schmidt, Valentin Hinterberger, Norman Philipp, Jochen C Reif, Thorsten Schnurbusch","doi":"10.1093/jxb/erae430","DOIUrl":"10.1093/jxb/erae430","url":null,"abstract":"The performance of plant hybrids relative to line breeding types is generally associated with higher yields, better adaptation, and improved yield stability. In bread wheat (Triticum aestivum L.), however, a broad commercial success for hybrids has not been accomplished until now largely due to the low efficiency of hybrid grain production, which is highly attributable to its self-pollinating nature. To better understand how hybrid wheat grains can be produced more effectively, we investigated the influence of synchronized flowering between female (i.e. male-sterile) lines and their male cross-pollinator lines as well as of the duration of flowering on hybrid grain production. We found that synchronization of flowering in combination with the longest possible temporal overlap had the largest positive effect on hybrid grain production. However, despite sufficient spatial and temporal synchronization of flowering, we also found that some female lines had lower hybrid grain set than others, suggesting genetic differences in female floral receptivity. To better assess female receptivity, we established a new phenotyping scale of male-sterile wheat flowers that provides the floral basics for effective cross-pollination. Applying this scale in our field and greenhouse trials revealed that better performing female lines remained longer in the pollen-receptive phase.","PeriodicalId":15820,"journal":{"name":"Journal of Experimental Botany","volume":" ","pages":"445-460"},"PeriodicalIF":5.6,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142501744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0