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PpARF6 acts as an integrator of auxin and ethylene signaling to promote fruit ripening in peach

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Horticulture Research 2023年第9期10卷 151-164页

作者： Xiaomei Chen Yudi Liu Xian Zhang Beibei Zheng yuepeng han Ruo-Xi Zhang CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenThe Innovative Academy of Seed Design of Chinese Academy of SciencesWuhan 430074China University of Chinese Academy of Sciences 19A YuquanluBeijing 100049China Hubei Hongshan Laboratory Wuhan 430070China

Although auxin is known to induce ethylene biosynthesis in some Rosaceae fruit crops,the mechanisms underlying the auxin–ethylene interaction during fruit ripening remain largely ***,the regulatory role of an auxin response factor,PpARF6,in fruit ripening was investigated in *** fruits showed accelerated ripening after treatment with auxin and PpARF6 was found to be significantly ***6 not only could induce ethylene synthesis by directly activating the transcription of ethylene biosynthetic genes,but also competed with EIN3-binding F-box proteins PpEBF1/2 for binding to ethylene-insensitive3-like proteins PpEIL2/3,thereby keeping PpEIL2/3 ***,PpARF6 showed an interaction with PpEIL2/3 to enhance the PpEIL2/3-activated transcription of ethylene biosynthetic ***,ectopic overexpression of PpARF6 in tomato accelerated fruit ripening by promoting the expression of genes involved in ethylene synthesis and fruit *** summary,our results revealed a positive regulatory role of PpARF6 in peach fruit ripening via integrating auxin and ethylene signaling.

关键词： interaction integrating thereby

Apple SINA11-JAZ2 module is involved in jasmonate signaling response

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Journal of Integrative Plant Biology 2024年第7期66卷 1270-1273页

作者： Di Ai Lei Zhao Chun-Xiang You yuepeng han Jian-Ping An State Key Laboratory of Plant Diversity and Specialty Crops CAS Key Laboratory of Plant Germplasm Enhancement and Specialty AgricultureWuhan Botanical Garden of Chinese Academy of SciencesWuhan 430074China Hubei Hongshan Laboratory Wuhan 430070China University of Chinese Academy of Sciences Beijing 100049China Apple Technology Innovation Center of Shandong Province College of Horticulture Science and EngineeringShandong Agricultural UniversityTai-An 271018China

Jasmonic acid(JA)is an important phytolipid hormone involved in regulating many processes of plant growth and development,and plays a key role in plant resistance to biotic and abiotic *** the first discovery of methy... 详细信息

关键词： nat Apple involv

A study of the soil water potential threshold values to trigger irrigation of ‘Shimizu Hakuto’ peach at pivotal fruit developmental stages

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Horticultural Plant Journal 2024年第2期10卷 376-386页

作者： Yusui Lou yuepeng han Yubin Miao Hongquan Shang Zhongwei Lv Lei Wang Shiping Wang Horticulture Reseach Institute Henan Academy of Agricultural SciencesZhengzhouHenan 450002China School of Agriculture and Biology Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical Garden of the Chinese Academy of SciencesWuhanHubei 430074China School of Mechanical Engineering Shanghai Jiao Tong UniversityShanghai 200240China

Water management is an important practice that affects fruit size and *** implementation of irrigation scheduling requires knowledge of the appropriate indicators and thresholds,which are established manly based on the effects of water deficits on final fruit *** studies have focused on the real-time effects of water status on fruit and shoot *** establish soil water potential (ψ_(soil)) thresholds to trigger irrigation of peach at pivotal fruit developmental stages,photogrammetry,^(13)C labelling,and other techniques were used in this study to investigate real-time changes in stem diameter,fruit projected area,net leaf photosynthetic rate (P_(n)),and allocation of photoassimilates to fruit under soil water potential conditions ranging from saturation to stress in 6-year-old Shimizu hakuto’*** growth,fruit growth,and P_n exhibited gradually decreasing sensitivity to water deficits during fruit developmental stages I,II,and *** diameter growth was significantly inhibited whenψ_(soil)dropped to-8.5,-7.6,and-5.4 k Pa,*** growth rate was low,reaching zero when theψ_(soil)was-9.0 to-23.1,-14.9 to-21.4,and-16.5 to-23.3 k Pa,respectively,and P_ndecreased significantly when theψ_(soil)reached-24.2,-22.7,and-20.4 kPa,*** addition,more photoassimilates were allocated to fruit under moderateψ_(soil)conditions (-10.1 to-17.0 k Pa) than under otherψ_(soil)*** results revealed threeψ_(soil)thresholds,-10.0,-15.0,and-15.0 kPa,suitable for triggering irrigation during stages I,II,and III,*** thresholds can be helpful for controlling excessive tree vigor,maintaining rapid fruit growth and leaf photosynthesis,and promoting the allocation of more photoassimilates to fruit.

关键词： Peach Soil water potential Irrigation threshold Fruit expansion Photosynthesis

The E3 ubiquitin ligase SINA1 and the protein kinase BIN2 cooperatively regulate PHR1 in apple anthocyanin biosynthesis

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Journal of Integrative Plant Biology 2023年第9期65卷 2175-2193页

作者： Jian‐Ping An Hong‐Liang Li Zhi‐Ying Liu Da‐Ru Wang Chun‐Xiang You yuepeng han CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenHubei Hongshan LaboratoryThe Innovative Academy of Seed Design of Chinese Academy of SciencesWuhan 430074China College of Horticulture Science and Engineering Shandong Agricultural UniversityTai‐An 271018China

PHR1(PHOSPHATE STARVATION RESPONSE1)plays key roles in the inorganic phosphate(Pi)starvation response and in Pi deficiency-induced anthocyanin biosynthesis in plants. However, the post-translational regulation of PHR1 is unclear,and the molecular basis of PHR1-mediated anthocyanin biosynthesis remains elusive. In this study, we determined that MdPHR1 was essential for Pi deficiency-induced anthocyanin accumulation in apple(Malus × domestica). MdPHR1 interacted with MdWRKY75, a positive regulator of anthocyanin biosynthesis, to enhance the MdWRKY75-activated transcription of MdMYB1,leading to anthocyanin accumulation. In addition,the E3 ubiquitin ligase SEVEN IN ABSENTIA1(MdSINA1) negatively regulated MdPHR1-promoted anthocyanin biosynthesis via the ubiquitination-mediated degradation of ***, the protein kinase apple BRASSINOSTEROID INSENSITIVE2(MdBIN2) phosphorylated MdPHR1 and positively regulated MdPHR1-mediated anthocyanin accumulation by attenuating the MdSINA1-mediated ubiquitination degradation of MdPHR1. Taken together,these findings not only demonstrate the regulatory role of MdPHR1 in Pi starvation induced anthocyanin accumulation, but also provide an insight into the post-translational regulation of PHR1.

关键词： anthocyanin biosynthesis apple phosphate starvation response phosphorylation PHR1 ubiquitination

MdbHLH162 connects the gibberellin and jasmonic acid signals to regulate anthocyanin biosynthesis in apple

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Journal of Integrative Plant Biology 2024年第2期66卷 265-284页

作者： Jian-Ping An Rui-Rui Xu Xiao-Na Wang Xiao-Wei Zhang Chun-Xiang You yuepeng han Apple technology innovation center of Shandong Province College of Horticulture Science and EngineeringShandong Agricultural UniversityTai-An 271018China CAS Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical GardenHubei Hongshan LaboratoryThe Innovative Academy of Seed Design of Chinese Academy of SciencesWuhan 430074China College of Biology and Oceanography Weifang UniversityWeifang 261061China

Anthocyanins are secondary metabolites induced by environmental stimuli and developmental *** positive regulators of anthocyanin biosynthesis have been reported,whereas the anthocyanin repressors have been *** the signal transduction pathways of gibberellin(GA)and jasmonic acid(JA)and their regulation of anthocyanin biosynthesis have been investigated,the cross-talk between GA and JA and the antagonistic mechanism of regulating anthocyanin biosynthesis remain to be *** this study,we identified the anthocyanin repressor MdbHLH162 in apple and revealed its molecular mechanism of regulating anthocyanin biosynthesis by integrating the GA and JA ***162 exerted passive repression by interacting with MdbHLH3 and MdbHLH33,which are two recognized positive regulators of anthocyanin ***162 negatively regulated anthocyanin biosynthesis by disrupting the formation of the anthocyanin-activated MdMYB1-MdbHLH3/33complexes and weakening transcriptional activation of the anthocyanin biosynthetic genes MdDFR and MdUF3GT by MdbHLH3 and *** GA repressor MdRGL2a antagonized MdbHLH162-mediated inhibition of anthocyanins by sequestering MdbHLH162 from the MdbHLH162-MdbHLH3/33 *** JA repressors MdJAZ1 and MdJAZ2 interfered with the antagonistic regulation of MdbHLH162 by MdRGL2a by titrating the formation of the MdRGL2a-MdbHLH162 *** findings reveal that MdbHLH162 integrates the GA and JA signals to negatively regulate anthocyanin *** study provides new information for discovering more anthocyanin biosynthesis repressors and explores the cross-talk between hormone signals.

关键词： anthocyanin biosynthesis bHLH transcription factor gibberellin jasmonic acid regulatory network transcriptional regulation

Reduced representation genome sequencing reveals patterns of genetic diversity and selection in apple

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Journal of Integrative Plant Biology 2017年第3期59卷 190-204页

作者： Baiquan Ma Liao Liao Qian Peng Ting Fang Hui Zhou Schuyler S. Korban yuepeng han Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical Garden of the Chinese Academy of Sciences Wuhan 430074 China Graduate University of Chinese Academy of Sciences 19A Yuquanlu Beijing 100049 China Sino-African Joint Research Center Chinese Academy of Sciences Wuhan 430074 China Department of Biology University of Massachusetts Boston Boston Massachusetts 02184 USA

Identifying DNA sequence variations is a fundamental step towards deciphering the genetic basis of traits of interest. Here, a total of 20 cultivated and lo wild apples were genotyped using specific-locus ampli- fied fragment sequencing, and 39,635 single nucleotide polymorphisms with no missing genotypes and evenly distributed along the genome were selected to investi- gate patterns of genome-wide genetic variations between cultivated and wild apples. Overall, wild apples displayed higher levels of genetic diversity than culti- vated apples. Linkage disequilibrium （LD） decays were observed quite rapidly in cultivated and wild apples, with an r2-value below 0.2 at 440 and 280 bp, respectively. Moreover, bidirectional gene flow and different distribu- tion patterns of LD blocks were detected betweendomesticated and wild apples. Most LD blocks unique to cultivated apples were located within QTL regions controlling fruit quality, thus suggesting that fruit quality had probably undergone selection during apple domes- tication. The genome of the earliest cultivated apple in China, Nai, was highly similar to that of Malus sieversii, and contained a small portion of genetic material from other wild apple species. This suggested that introgres- sion could have been an important driving force during initial domestication of apple. These findings will facilitate future breeding and genetic dissection of complex traits in apple.

关键词： Hongya Gu Peking University China

Developing gene-tagged molecular markers for evaluation of genetic association of apple SWEET genes with fruit sugar accumulation

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Horticulture Research 2018年第1期5卷 762-773页

作者： Qiaoling Zhen Ting Fang Qian Peng Liao Liao Li Zhao Albert Owiti yuepeng han Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical Garden of the Chinese Academy of SciencesWuhan430074China Graduate University of Chinese Academy of Sciences 19A YuquanluBeijing100049China Sino-African Joint Research Center Chinese Academy of SciencesWuhan430074China College of Horticulture Science and Engineering Shandong Agricultural UniversityTai-AnShandong271018China

Sugar content is an important component of fruit *** sugar transporters are known to be crucial for sugar accumulation,the role of genes encoding SWEET sugar transporters in fruit sugar accumulation remains *** we report the effect of the SWEET genes on fruit sugar accumulation in apple.A total of 25 MdSWEET genes were identified in the apple genome,and 9 were highly expressed throughout fruit *** markers of these 9 MdSWEET genes were developed and used for genotyping of 188 apple *** association of polymorphic MdSWEET genes with soluble sugar content in mature fruit was *** genes,MdSWEET2e,MdSWEET9b,and MdSWEET15a,were significantly associated with fruit sugar content,with MdSWEET15a and MdSWEET9b accounting for a relatively large proportion of phenotypic variation in sugar ***,both MdSWEET9b and MdSWEET15a are located on chromosomal regions harboring QTLs for sugar ***,MdSWEET9b and MdSWEET15a are likely candidates regulating fruit sugar accumulation in *** study not only presents an efficient way of implementing gene functional study but also provides molecular tools for genetic improvement of fruit quality in apple-breeding programs.

关键词： breeding sugar cultivar

A PpEIL2/3–PpNAC1–PpWRKY14 module regulates fruit ripening by modulating ethylene production in peach

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Journal of Integrative Plant Biology 2024年第11期66卷 2470-2489页

作者： Yudi Liu Wen Xiao Liao Liao Beibei Zheng Yunpeng Cao Yun Zhao Ruo-Xi Zhang yuepeng han State Key Laboratory of Plant Diversity and Specialty Crops Wuhan Botanical GardenChinese Academy of SciencesWuhan 430074China Hubei Hongshan Laboratory Wuhan 430070China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Hybrid Rice Department of Plant SciencesCollege of Life SciencesWuhan UniversityWuhan 430072China Sino-African Joint Research Center Chinese Academy of SciencesWuhan 430074China

WRKY transcription factors play key roles in plant resistance to various stresses,but their roles in fruit ripening remain largely ***,we report a WRKY gene PpWRKY14 involved in the regulation of fruit ripening in *** expression of PpWRKY14 showed an increasing trend throughout fruit ***14was a target gene of PpNAC1,a master regulator of peach fruit ***14 could directly bind to the promoters of PpACS1 and PpACO1 to induce their expression,and this induction was greatly enhanced when PpWRKY14 formed a dimer with ***,the transcription of PpNAC1 could be directly suppressed by two EIN3/EIL1 genes,PpEIL2 and *** PpEIL2/3 genes were highly expressed at the early stages of fruit development,but their expression was programmed to decrease significantly during the ripening stage,thus derepressing the expression of *** results suggested a PpEIL2/3–PpNAC1–PpWRKY14 module that regulates fruit ripening by modulating ethylene production in *** results provided an insight into the regulatory roles of EIN3/EIL1 and WRKY genes in fruit ripening.

关键词： EIL ethylene NAC1 Prunus persica ripening WRKY

Investigation of benzylisoquinoline alkaloid biosynthetic pathway and its transcriptional regulation in lotus

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Horticulture Research 2018年第1期5卷 588-603页

作者： Xianbao Deng Li Zhao Ting Fang Yaqian Xiong Collins Ogutu Dong Yang Sornkanok Vimolmangkang Yanling Liu yuepeng han Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture Wuhan Botanical Garden of the Chinese Academy of SciencesWuhan430074China Graduate University of Chinese Academy of Sciences 19A YuquanluBeijing100049China Sino-African Joint Research Center Chinese Academy of SciencesWuhan430074China Department of Biochemistry and Microbiology Faculty of Pharmaceutical SciencesChulalongkorn UniversityBangkok10330Thailand

Lotus predominantly accumulates benzylisoquinoline alkaloids(BIAs),but their biosynthesis and regulation remain ***,we investigated structural and regulatory genes involved in BIA accumulation in *** clustered CYP80 genes were identified to be responsible for the biosynthesis of bis-BIAs and aporphine-type BIAs,respectively,and their tissue-specific expression causes divergence in alkaloid component between leaf and *** contrast with the common(S)-reticuline precursor for most BIAs,aporphine alkaloids in lotus leaf may result from the(S)-N-methylcoclaurine *** diversity of BIA alkaloids in the leaf is attributed to enzymatic modifications,including intramolecular C–C phenol coupling on ring A and methylation and demethylation at certain ***,most BIA biosynthetic pathway genes show higher levels of expression in the leaf of high-BIA cultivar compared with low-BIA cultivar,suggesting transcriptional regulation of BIA accumulation in *** transcription factors,including three MYBs,one ethylene-responsive factor,and one basic helix–loop–helix(bHLH),were identified to be candidate regulators of BIA biosynthesis in *** study reveals a BIA biosynthetic pathway and its transcriptional regulation in lotus,which will enable a deeper understanding of BIA biosynthesis in plants.

关键词： alkaloid benzyl alkaloids