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学者姓名：彭东辉
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Abstract ：
Genes that introgress between species can influence the evolutionary and ecological fate of recipients exposed to novel environments. However, key questions on the patterns and molecular mechanisms of introgression in perennial herbaceous plants, which enable distantly related invasive species to thrive in extreme habitats, remain largely unanswered. Here, we report unidirectional introgression from the local species Dendrobium huoshanense to the distantly related invasive species Dendrobium catenatum (Den-drobium officinale) in lithophytic habitats of eastern China. The introgressed regions, which comprise approximately 1% of the genome, contain genes that regulate responses to drought, cold, and metal-ion stresses. Notably, introgressed loci such as CDPK, HHP, PIF, BRI1, and FYshow distinct selection signatures and differential expression compared with their paralogs, each playing a distinct role in drought and cold-stress responses. In addition, CIPK23, PDR9, and HAM demonstrate differential expression relative to their paralogous genes and alleles within introgressed loci, indicating their potential involvement in responses to metal-ion stress. Introgression thus facilitates the colonization of arid, metal-enriched sedimentary habitats by D. catenatum. These findings enhance our understanding of Orchidaceae evolution and reveal the evolutionary role of unidirectional introgression in the adaptation of perennial herbaceous plants to extreme environments.
Keyword ：
Dendrobium Dendrobium distantly related species distantly related species introgression introgression invasive species invasive species metal-ion stress metal-ion stress
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| GB/T 7714 | Jiao Zhenbin , Ren Zhiyao , Hu Chao et al. Unidirectional genomic introgression facilitates the colonization of an invasive orchid in arid, metal-enriched sedimentary habitats [J]. | PLANT COMMUNICATIONS , 2026 , 7 (1) . |
| MLA | Jiao Zhenbin et al. "Unidirectional genomic introgression facilitates the colonization of an invasive orchid in arid, metal-enriched sedimentary habitats" . | PLANT COMMUNICATIONS 7 . 1 (2026) . |
| APA | Jiao Zhenbin , Ren Zhiyao , Hu Chao , Ma Xiaokai , Zhang Guo-Qiang , Chen Li-Jun et al. Unidirectional genomic introgression facilitates the colonization of an invasive orchid in arid, metal-enriched sedimentary habitats . | PLANT COMMUNICATIONS , 2026 , 7 (1) . |
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Sucrose non-fermenting 1-related protein kinases (SnRKs) are crucial for modulating plant responses to abiotic stresses, linking metabolism with stress signaling pathways. Investigating the roles and stress responses of SnRKs in plants paves the way for developing stress-tolerant strategies in orchid species. Here, 362 SnRK members were identified from nine current orchid genomes, highlighting the conservation of these genes in evolution. Among these, 33 CeSnRKs were found across 20 chromosomes of C. ensifolium genome. Multiple duplication events increased the complexity of CeSnRKs during independent evolution. Moreover, distinct functional domains beyond the kinase domain differentiated the subfamilies. These multi-copy members existed tissue specific expressions falling into 6 main trends, especially CeSnRK1, CeCIPK9, CeCIPK23 displayed a strict floral expression. ABA-related elements were enriched in the promoters of CeSnRKs, and stress-related miRNA binding sites were identified on partial CeSnRKs. Consequently, most CeSnRKs exhibited up-regulated expression during ABA treatment. Several genes, such as CeSnRK2.1 and CeCIPK28 involved growth and development at different times and various tissues. The up-regulation of SnRK2.1, along with high expression of SnRK1 and CIPK27 under drought stress, and the differential expression patterns of CeSnRKs under cold stress, underscore the involvement of CeSnRK genes in different stress responses. Additionally, the diverse interactions of CeSnRKs with proteins highlighted a multifaceted functional network.These findings offer valuable insights for the future functional characterization formation of CeSnRKs and the adaptive evolution of genes in orchids.
Keyword ：
ABA response ABA response Abiotic stress Abiotic stress Evolution Evolution Expression patterns Expression patterns Orchidaceae Orchidaceae
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| GB/T 7714 | Zheng, Ruiyue , Zhao, Kai , Chen, Jiemin et al. Genomic signatures of SnRKs highlighted conserved evolution within orchids and stress responses through ABA signaling in the Cymbidium ensifolium [J]. | BMC PLANT BIOLOGY , 2025 , 25 (1) . |
| MLA | Zheng, Ruiyue et al. "Genomic signatures of SnRKs highlighted conserved evolution within orchids and stress responses through ABA signaling in the Cymbidium ensifolium" . | BMC PLANT BIOLOGY 25 . 1 (2025) . |
| APA | Zheng, Ruiyue , Zhao, Kai , Chen, Jiemin , Zhu, Xuanyi , Peng, Yukun , Shen, Mingli et al. Genomic signatures of SnRKs highlighted conserved evolution within orchids and stress responses through ABA signaling in the Cymbidium ensifolium . | BMC PLANT BIOLOGY , 2025 , 25 (1) . |
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Angraecum sesquipedale, also known as Darwin's orchid, possesses an exceptionally long nectar spur. Charles Darwin predicted the orchid to be pollinated by a hawkmoth with a correspondingly long proboscis, later identified as Xanthopan praedicta. In this plant-pollinator interaction, the A. sesquipedale flower emits a complex blend of scent compounds dominated by diurnally regulated oximes (R1R2C = N-OH) to attract crepuscular and nocturnal pollinators. The molecular mechanism of oxime biosynthesis remains unclear in orchids. Here, we present the chromosome-level genome of A. sesquipedale. The haploid genome size is 2.10 Gb and represents 19 pseudochromosomes. Cytochrome P450 encoding genes of the CYP79 family known to be involved in oxime biosynthesis in seed plants are not present in the A. sesquipedale genome nor the genomes of other members of the orchid family. Metabolomic analysis of the A. sesquipedale flower revealed a substantial release of oximes at dusk during the blooming stage. By integrating metabolomic and transcriptomic correlation approaches, flavin-containing monooxygenases (FMOs) encoded by six tandem-repeat genes in the A. sesquipedale genome are identified as catalyzing the formation of oximes present. Further in vitro and in vivo assays confirm the function of FMOs in the oxime biosynthesis. We designate these FMOs as orchid oxime synthases 1-6. The evolutionary aspects related to the CYP79 gene losses and neofunctionalization of FMO-catalyzed biosynthesis of oximes in Darwin's orchid provide new insights into the convergent evolution of biosynthetic pathways.
Keyword ：
Angraecum sesquipedale Angraecum sesquipedale convergent evolution convergent evolution CYP79 absence CYP79 absence flavin monooxygenase flavin monooxygenase white floral scent white floral scent whole genome sequence whole genome sequence
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| GB/T 7714 | Jiang, Kai , Moller, Birger Lindberg , Luo, Shaofan et al. Genomic, transcriptomic, and metabolomic analyses reveal convergent evolution of oxime biosynthesis in Darwin's orchid [J]. | MOLECULAR PLANT , 2025 , 18 (3) : 392-415 . |
| MLA | Jiang, Kai et al. "Genomic, transcriptomic, and metabolomic analyses reveal convergent evolution of oxime biosynthesis in Darwin's orchid" . | MOLECULAR PLANT 18 . 3 (2025) : 392-415 . |
| APA | Jiang, Kai , Moller, Birger Lindberg , Luo, Shaofan , Yang, Yu , Nelson, David R. , Neilson, Elizabeth Heather Jakobsen et al. Genomic, transcriptomic, and metabolomic analyses reveal convergent evolution of oxime biosynthesis in Darwin's orchid . | MOLECULAR PLANT , 2025 , 18 (3) , 392-415 . |
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Colorful leaves, particularly red ones, represent an important ornamental trait of Cymbidium ensifolium. However, the mechanisms underlying red leaf formation in C. ensifolium are not well understood. In this study, we examined the phenotypic, physiological, and transcriptomic differences between red and green leaves at various developmental stages. We found that red leaves exhibited significantly lower levels of chlorophyll a, chlorophyll b, carotenoids, and total chlorophyll across all stages, while anthocyanin levels were notably higher. Ultrastructural analysis revealed abnormalities in the chloroplast structure of red leaves, including fewer chloroplasts, ruptured thylakoid membranes, an indistinct matrix layer, and the accumulation of osmiophilic particles, which led to reduced photosynthetic capacity. In addition, transcriptomic analysis showed significant differences in the expression of genes related to anthocyanin biosynthesis, chlorophyll metabolism, and photosynthesis between red and green leaves at different stages of growth. Therefore, we suggest that red leaf formation in C. ensifolium is driven by reduced expression of chlorophyll metabolism genes, resulting in impaired chloroplast development and chlorophyll synthesis, while upregulation of anthocyanin biosynthesis genes promotes anthocyanin accumulation, leading to the red coloration. These findings provide valuable insights into color formation mechanisms of red leaves in C. ensifolium.
Keyword ：
Anthocyanin Anthocyanin Chlorophyll metabolism Chlorophyll metabolism Cymbidium ensifolium Cymbidium ensifolium Red leaves Red leaves
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| GB/T 7714 | Xiong, Longwei , Ou, Yue , Li, Peng et al. Comparative physiology and transcriptome analysis revealed the mechanisms underlying red leaf formation in Cymbidium ensifolium [J]. | SCIENTIA HORTICULTURAE , 2025 , 340 . |
| MLA | Xiong, Longwei et al. "Comparative physiology and transcriptome analysis revealed the mechanisms underlying red leaf formation in Cymbidium ensifolium" . | SCIENTIA HORTICULTURAE 340 (2025) . |
| APA | Xiong, Longwei , Ou, Yue , Li, Peng , Tian, Yang , Guo, Liting , Li, Jinjin et al. Comparative physiology and transcriptome analysis revealed the mechanisms underlying red leaf formation in Cymbidium ensifolium . | SCIENTIA HORTICULTURAE , 2025 , 340 . |
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Chinese Cymbidium are prized for their ornamental beauty, ecological significance, and economic value. However, genomic resources crucial for breeding studies within this genus remain scarce, which has hindered the identification of key genes controlling economically important traits and posed challenges for conservation efforts. We performed a comprehensive identification of whole-genome simple sequence repeats (SSRs) and single-nucleotide polymorphism (SNP) markers using the restriction-site associated DNA sequencing (RADseq) on C. goeringii and C. faberi. A total of 49,640 SSR loci were identified across both species, with an average density of 12.7 SSRs/Mb. Among these, 17,637 SSRs were common to both C. goeringii and C. faber, while 17,676 and 14,329 SSRs were uniquely identified in C. goeringii and C. faberi, respectively. Additionally, we identified 405,416 SNPs and 26,870 InDels, with average densities of 105.2/Mb and 6.5/Mb. Furthermore, we validated two SSRs (located at Chr01:78857480-78860461 and Chr01:93382182-93384869) and developed an efficient method for identifying hybrids among the progeny resulting from crosses between C. goeringii and C. faberi. We also validated two SNP markers that showed a close association with the petal and lip length using Sanger sequencing. Our findings revealed that the Chr01_99657375 SNP achieved 73% predictive accuracy for identifying long-petal/lip phenotypes. The results are expected to greatly benefit marker-assisted breeding efforts in Cymbidium orchids and lay a solid foundation for the molecular breeding process of improving flower shape traits in orchid plants.
Keyword ：
Cymbidium orchids Cymbidium orchids flower shape traits flower shape traits molecular marker molecular marker RAD-seq RAD-seq
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| GB/T 7714 | Cheng, Mengya , Liu, Yingqi , Jin, Chentai et al. Genome-Wide Identification of SNP and SSR Markers from Cymbidium goeringii and C. faberi for Their Potential Application in Breeding [J]. | HORTICULTURAE , 2025 , 11 (6) . |
| MLA | Cheng, Mengya et al. "Genome-Wide Identification of SNP and SSR Markers from Cymbidium goeringii and C. faberi for Their Potential Application in Breeding" . | HORTICULTURAE 11 . 6 (2025) . |
| APA | Cheng, Mengya , Liu, Yingqi , Jin, Chentai , Jiang, Xiao , Chen, Xiuming , Wang, Fei et al. Genome-Wide Identification of SNP and SSR Markers from Cymbidium goeringii and C. faberi for Their Potential Application in Breeding . | HORTICULTURAE , 2025 , 11 (6) . |
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鉴于枢纽互通型桥下空间的独特优势及无序利用的现状，该文选取福州市南屿枢纽互通桥下空间作为研究对象，创新融合环境行为学与公共空间—公共生活调研法，剖析空间中的行人环境感知与行为特征。研究发现，该空间的布局、环境及儿童娱乐功能具备较高满意度，但花卉展销与餐饮休憩功能仍需优化；行人活动集中于下午、周末、节假日及春秋两季，空间中社交互动行为占比突出。基于此，该文总结各功能空间形态特征并提出优化策略，旨在为同类空间规划与设计提供理论依据与实践指导。
Keyword ：
桥下空间 桥下空间 环境行为学 环境行为学 福州市南屿枢纽互通 福州市南屿枢纽互通 高速公路枢纽互通 高速公路枢纽互通
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| GB/T 7714 | 赵思妍 , 任维 , 吴祯海 et al. 环境行为学视角下福州市南屿枢纽互通桥下空间优化研究 [J]. | 海峡科学 , 2025 , 8 (04) : 75-81,145 . |
| MLA | 赵思妍 et al. "环境行为学视角下福州市南屿枢纽互通桥下空间优化研究" . | 海峡科学 8 . 04 (2025) : 75-81,145 . |
| APA | 赵思妍 , 任维 , 吴祯海 , 黄元豪 , 彭东辉 . 环境行为学视角下福州市南屿枢纽互通桥下空间优化研究 . | 海峡科学 , 2025 , 8 (04) , 75-81,145 . |
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The GRF (Growth-Regulating Factor) gene family has indispensable regulatory functions in the morphological and physiological development of plants. Nonetheless, comprehensive investigations of GRF gene family members and their functional roles in Cymbidium goeringii, Cymbidium ensifolium, and Cymbidium sinense are still lacking. Therefore, the GRF gene family members in three Cymbidium species were systematically identified, and their expression profiles and potential biological functions were comprehensively evaluated in the study. The results provided evidence that eleven, eleven, and nine GRF genes were identified in C. goeringii, C. ensifolium, and C. sinense, respectively. These genes encode proteins considered as 153-584 amino acids and have been postulated to be located in the cell nucleus. The promoter contains cis-acting elements associated with hormone response regulation, tissue-specific expression, modulation of organismal growth and development, and environmental signal response. The analyses of gene architecture and motif composition demonstrated that introns and motifs within each evolutionary branch are highly similar, whereas significant differences exist between evolutionary branches. The results of chromosome localization and collinearity analysis showed that only a pair of segmental duplication genes was identified in C. goeringii. Moreover, transcriptome data and qRT-PCR results indicated that GRF genes are involved in various organs of C. goeringii. In conclusion, these findings may establish a foundation for theoretical inquiry into the future functional analysis of GRF genes in orchids.
Keyword ：
Cymbidium Cymbidium functional prediction functional prediction genome-wide identification genome-wide identification GRF genes GRF genes
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| GB/T 7714 | Deng, Yan , Pan, Yun , Wang, Fei et al. Genome-Wide Identification of the Growth-Regulating Factor (GRF) Gene Family in Three Cymbidium Species and Expression Patterns in C. goeringii [J]. | HORTICULTURAE , 2025 , 11 (9) . |
| MLA | Deng, Yan et al. "Genome-Wide Identification of the Growth-Regulating Factor (GRF) Gene Family in Three Cymbidium Species and Expression Patterns in C. goeringii" . | HORTICULTURAE 11 . 9 (2025) . |
| APA | Deng, Yan , Pan, Yun , Wang, Fei , Chen, Feng , Wu, Xiaopei , Chen, Jinliao et al. Genome-Wide Identification of the Growth-Regulating Factor (GRF) Gene Family in Three Cymbidium Species and Expression Patterns in C. goeringii . | HORTICULTURAE , 2025 , 11 (9) . |
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为了研究国兰杂交后代表型性状的分离和遗传变异规律，本研究以春兰（Cymbidium goeringii）和蕙兰（C. faberi）种间杂交F
Keyword ：
兰属 兰属 杂种优势 杂种优势 种间杂交 种间杂交 表型性状 表型性状 遗传变异 遗传变异
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| GB/T 7714 | 周小琴 , 陈桂珍 , 孙佳婷 et al. 春兰和蕙兰种间杂交F [J]. | 分子植物育种 , 2025 , 23 (11) : 3679-3691 . |
| MLA | 周小琴 et al. "春兰和蕙兰种间杂交F" . | 分子植物育种 23 . 11 (2025) : 3679-3691 . |
| APA | 周小琴 , 陈桂珍 , 孙佳婷 , 刘舒雅 , 刘钰颖 , 张燕萍 et al. 春兰和蕙兰种间杂交F . | 分子植物育种 , 2025 , 23 (11) , 3679-3691 . |
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Phalaenopsis is a widely cultivated ornamental plant of considerable economic value worldwide. However, traditional growing medium, sphagnum moss, is limited and non-renewable. It also decomposes slowly and is prone to environmental issues. Therefore, there is an urgent need to identify more environmentally friendly and efficient alternatives. Biochar, a sustainable material with excellent physical and chemical properties, has been recognized as an effective promoter of plant growth. In this study, we investigated the influence of biochar derived from three raw materials (corn straw, bamboo, and walnut) mixed1 with coconut shell at ratios of 1:2, 1:10, and 4:1, on the growth of Phalaenopsis 'Big Chili'. Over a 150-day controlled experiment, we evaluated multiple growth parameters, including plant height, crown width, total root length, total projected area, total surface area, and root volume. Compared to the traditional growing medium, the optimal biochar-coconut shell mixture (maize straw biochar: coconut shell = 1:2) increased plant height and crown width by 7.55% and 6.68%, respectively. Root metrics improved substantially, with total root length increasing by 10.96%, total projected area by 22.82%, total surface area by 22.14%, and root volume by 38.49%. Root biomass in the optimal treatment group increased by 42.47%, while aboveground and belowground dry weights increased by 6.16% and 77.11%, respectively. These improvements were closely associated with favorable substrate characteristics, including low bulk density, high total and water-holding porosity, moderate aeration, and adequate nutrient availability. These findings demonstrate that substrate characteristics critically influence plant performance and that biochar-coconut shell mixtures, particularly at a 1:2 ratio, represent a viable and sustainable alternative to sphagnum moss for commercial cultivation of Phalaenopsis.
Keyword ：
biochar biochar Phalaenopsis 'Big Chili' Phalaenopsis 'Big Chili' plant growing medium plant growing medium plant growth plant growth
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| GB/T 7714 | Pan, Yun , Chen, Daoyuan , Deng, Yan et al. Biochar-Coconut Shell Mixtures as Substrates for Phalaenopsis 'Big Chili' [J]. | PLANTS-BASEL , 2025 , 14 (14) . |
| MLA | Pan, Yun et al. "Biochar-Coconut Shell Mixtures as Substrates for Phalaenopsis 'Big Chili'" . | PLANTS-BASEL 14 . 14 (2025) . |
| APA | Pan, Yun , Chen, Daoyuan , Deng, Yan , Wang, Shunshun , Chen, Feng , Wang, Fei et al. Biochar-Coconut Shell Mixtures as Substrates for Phalaenopsis 'Big Chili' . | PLANTS-BASEL , 2025 , 14 (14) . |
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Melastoma dodecandrum is primarily propagated through stem cuttings, which limits genetic variation and constrains breeding efforts. To overcome this limitation and facilitate molecular breeding, the establishment of a reliable and efficient regeneration system is essential. This study investigated the effects of plant growth regulators (PGRs) and culture media on the in vitro regeneration system of M. dodecandrum. The highest rate of callus induction (96.67%) was achieved when sterile leaf explants were cultured on Murashige and Skoog (MS) basal medium supplemented with 2.00 mgL-1 2,4-dichlorophenoxyacetic acid (2,4-D) and 0.50 mgL-1 6-benzylaminopurine (6-BA). For callus differentiation, the optimal formulation of MS + 2.0 mgL-1 6-BA + 0.5 mgL-1 naphthylacetic acid (NAA) resulted in a differentiation frequency of 83.33%. The optimal PGR combinations for shoot proliferation were 1.5 mgL-1 6-BA + 0.1 mgL-1 NAA and 0.5 mgL-1 6-BA + 0.2 mgL-1 NAA. The optimal rooting media were MS medium supplemented with 0.1, 0.2, or 0.5 mgL-1 indole-3-butyric acid (IBA) or 1/2MS medium supplemented with 0.1 mgL-1 IBA. Additionally, this study investigated the dynamic changes in endogenous hormones during the regeneration process. The levels and ratios of hormones, including gibberellin (GA3), abscisic acid (ABA), indole-3-acetic acid (IAA), and zeatin (ZT), collectively regulated the regeneration process. Elevated levels of ABA and GA3 may promote callus initiation as well as the growth and development of adventitious roots during the early induction stage. Reduced levels of ABA and IAA favored callus differentiation into shoots, whereas elevated GA3 levels facilitated proliferation of adventitious shoots. Throughout the regeneration process, fluctuations in ZT levels remained relatively stable. This study successfully established an in vitro regeneration system for M. dodecandrum using leaf explants, providing theoretical guidance and technical support for further molecular breeding efforts, genetic transformation, and industrial development.
Keyword ：
callus induction callus induction explant explant leaves leaves plant growth regulators (PGRs) plant growth regulators (PGRs) tissue culture tissue culture
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| GB/T 7714 | Wang, Shunshun , Tang, Ruonan , Wang, Fei et al. Establishment of an In Vitro Regeneration System and Analysis of Endogenous Hormone Dynamics in Melastoma dodecandrum [J]. | HORTICULTURAE , 2025 , 11 (8) . |
| MLA | Wang, Shunshun et al. "Establishment of an In Vitro Regeneration System and Analysis of Endogenous Hormone Dynamics in Melastoma dodecandrum" . | HORTICULTURAE 11 . 8 (2025) . |
| APA | Wang, Shunshun , Tang, Ruonan , Wang, Fei , Pan, Yun , Duan, Yanru , Xue, Luyu et al. Establishment of an In Vitro Regeneration System and Analysis of Endogenous Hormone Dynamics in Melastoma dodecandrum . | HORTICULTURAE , 2025 , 11 (8) . |
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