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Plant Communications 2024年第5期5卷 75-90页

作者： Yongfa Wang Zihao Wang Yongming Chen Tianyu Lan Xiaobo Wang Gang Liu Mingming Xin Zhaorong Hu Yingyin Yao Zhongfu Ni Qixin Sun Weilong Guo Huiru Peng Frontiers science Center for Molecular Design Breeding Key Laboratory of Crop Heterosis and UtilizationBeijing Key Laboratory of Crop Genetic ImprovementChina Agricultural UniversityBeijing 100193China institute for Plant Genetics Heinrich Heine University40225 DusseldorfGermany Sanya institute of China Agricultural University Sanya 572025China

Spelt(Triticum aestivum ***)is an important wheat subspecies mainly cultivated in Europe before the 20th century that has contributed to modern wheat breeding as a valuable genetic ***,relatively little is known about the origins and maintenance of spelt ***,using resequencing data from 416 worldwide wheat accessions,including representative spelt wheat,we demonstrate that Eu-ropean spelt emerged when primitive hexaploid wheat spread to the west and hybridized with pre-settled domesticated emmer,the putative maternal *** introgression regions from domesticated emmer confer spelt’s primitive morphological characters used for species taxonomy,such as tenacious glumes and laterﬂ*** propose a haplotype-based"spelt index"to identify spelt-type wheat vari-eties and to quantify utilization of the spelt gene pool in modern wheat *** study reveals the ge-netic basis for the establishment of the spelt wheat subspecies in a specific ecological niche and the vital role of the spelt gene pool as a unique germplasm resource in modern wheat breeding.

关键词： wheat spelt interspecific hybridization gene pool modern wheat breeding

Maize ZmSRO1e promotes mesocotyl elongation and deep sowing tolerance by inhibiting the activity of ZmbZIP61

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Journal of Integrative Plant biology 2024年第8期66卷 1571-1586页

作者： Lumin Qin Fangfang Kong Lin Wei Minghan Cui Jianhang Li Chen Zhu Yue Liu Guangmin Xia Shuwei Liu key laboratory of Plant Development and Environmental Adaptation biology Ministry of EducationSchool of Life ScienceShandong UniversityQingdao 266237China crop Research institute Anhui Academy of Agricultural SciencesHefeiAnhui Province 230031China

Deep sowing is a traditional method for drought resistance in maize production,and mesocotyl elongation is strongly associated with the ability of maize to germinate from deep ***,little is known about the functional genes and mechanisms regulating maize mesocotyl *** the present study,we identified a plant-specific SIMILAR TO RCD-ONE(SRO) protein family member,ZmSRO1e,involved in maize mesocotyl *** expression of ZmSRO1e is strongly inhibited upon transfer from dark to white *** loss-of-function zmsro1e mutant exhibited a dramatically shorter mesocotyl than the wild-type in both constant light and darkness,while overexpression of ZmSRO1e significantly promoted mesocotyl elongation,indicating that ZmSRO1e positively regulates mesocotyl *** showed that ZmSRO1e physically interacted with Zmb ZIP61,an ortholog of Arabidopsis ELONGATED HYPOCOTYL 5(HY5) and showed a function similar to that of HY5 in regulating *** found that ZmSRO1e repressed the transcriptional activity of Zmb ZIP61 toward target genes involved in the regulation of cell expansion,such as ZmEXPB4 and ZmEXPB6,by interfering with the binding of ZmbZIP61 to the promoters of target *** results provide a new understanding of the mechanism by which SRO regulates photomorphogenesis and highlight its potential application in deep sowing-resistant breeding.

关键词： deep sowing HY5 maize Mesocotyl SRO

Mapping of powdery mildew resistance genes transferred to common wheat from wild emmer wheat revealed three functional Pm60 haplotypes

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The crop Journal 2024年第2期12卷 540-548页

作者： Wenxin Wei Nannan Liu Shengnan Zhang Jing Zhang Wei Pan Xiaoming Xie Zuhuan Yang Junna Sun Jun Ma Zhaorong Hu Weilong Guo Qiaoling Luo Jingzhong Xie Fei He Yinghui Li Chaojie Xie Qixin Sun key laboratory of crop Heterosis and Utilization(MOE)/key laboratory of crop Genetic Improvement China Agricultural UniversityBeijing 100193China institute of Advanced Agricultural science Peking UniversityWeifang 261200ShandongChina institute of Genetics and Developmental biology Chinese Academy of SciencesBeijing 100101China Triticeae Research institute Sichuan Agricultural UniversityChengdu 611130SichuanChina institute of Evolution University of HaifaMt.CarmelHaifa 3498838Israel

Powdery mildew(PM),caused by Blumeria graminis ***(Bgt),is one of the destructive wheat diseases *** emmer wheat(Triticum turgidum ***,WEW),a tetraploid progenitor of common wheat,is a valuable genetic resource for wheat disease resistance breeding *** developed three hexaploid pre-breeding lines with PM resistance genes derived from three WEW *** resistant pre-breeding lines were crossed with susceptible common wheat *** in the F2populations were 3 resistant:1 susceptible,suggesting a single dominant allele in each resistant *** of the resistance gene in each line indicated a single locus on the long arm of chromosome 7A,at the approximate location of previously cloned Pm60 from *** sequencing revealed three different Pm60 haplotypes(Hap 3,Hap 5,and Hap 6).Co-segregating diagnostic markers were developed for identification and selection of each *** resistance function of each haplotype was verified by the virus-induced gene silencing(VIGS).Common wheat lines carrying each of these Pm60 haplotypes were resistant to most Bgt isolates and differences in the response arrays suggested allelic variation in response.

关键词： Alleles Blumeria graminus Marker-assisted selection Molecular marker Triticum dicoccoides

Biochar alleviates apple replant disease by reducing the growth of Fusarium oxysporum and regulating microbial communities

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Horticultural Plant Journal 2024年第3期10卷 657-671页

作者： Yinghao Liu Can Wang Ran Chen Weitao Jiang Yun Li Chengmiao Yin Yanfang Wang Zhiquan Mao College of Chemistry and Material science Shandong Agricultural UniversityTaianShandong 271018China State key laboratory of crop biology/College of Horticultural science and Engineering Shandong Agricultural UniversityTaianShandong 271018China

Apple replant disease(ARD)negatively affects plant growth and reduces yields in replanted *** this study,biochar was applied to apple replant soil with Fusarium *** aim was to investigate whether biochar could promote plant growth and alleviate apple replant disease by reducing the growth of harmful soil microorganisms,changing soil microbial community structure and improving the soil *** experiment included five treatments:apple replant soil(CK),methyl bromide fumigation apple replant soil(FM),replant soil with biochar addition(2%),replant soil with *** spore solution(8×10^(7)spores·mL^(-1)),and replant soil with biochar and *** spore solution *** biomass,the activity of antioxidant enzymes in the leaves and roots,and soil environmental variables were *** community composition and community structure were analyzed using 16SrDNA and ITS2 gene *** significantly reduced the abundance of *** and increased soil microbial diversity and *** also increased the soil enzyme activities(urease,invertase,neutral phosphatase,and catalase),the biomass(plant height,fresh weight,dry weight)and the activity of antioxidant enzymes(superoxide dismutase,peroxidase,and catalase).The root indexes of apple seedlings was also increased in replant soil by *** sum,biochar promoted the growth of plants,improved the replant soil environment,and alleviated apple replant disease.

关键词： Biochar Fusarium oxysporum Apple replant disease Soil environment

Natural variation in the cytochrome c oxidase subunit 5B OsCOX5B regulates seed vigor by altering energy production in rice

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Journal of Integrative Agriculture 2024年第9期23卷 2898-2910页

作者： Chengwei Huang Zhijuan Ji Qianqian Huang Liling Peng Wenwen Li Dandan Wang Zepeng Wu Jia Zhao Yongqi He Zhoufei Wang laboratory of Seed science and Technology/Guangdong key laboratory of Plant Molecular Breeding/State key laboratory for Conservation and Utilization of Subtropical Agro-Bioresources/South China Agricultural University Guangzhou 510642China national Nanfan Research institute(Sanya) Chinese Academy of Agricultural SciencesSanya 572025 China national rice Research institute Hangzhou 310006China

Seed vigor is a crucial trait for the direct seeding of *** we examined the genetic regulation of seed vigor traits in rice,including germination index(GI)and germination potential(GP),using a genome-wide association study *** major quantitative trait locus,qGI6/qGP6,was identified simultaneously for both GI and *** candidate gene encoding the cytochrome c oxidase subunit 5B(OsCOX5B)was validated for qGI6/*** disruption of OsCOX5B caused the vigor traits to be significantly lower in Oscox5b mutants than in the japonica Nipponbare wild type(WT).Gene co-expression analysis revealed that OsCOX5B influences seed vigor mainly by modulating the tricarboxylic acid cycle *** glucose levels were significantly higher while the pyruvic acid and adenosine triphosphate levels were significantly lower in Oscox5b mutants than in WT during seed *** elite haplotype of OsCOX5B facilitates seed vigor by increasing its expression during seed ***,we propose that OsCOX5B is a potential target for the breeding of rice varieties with enhanced seed vigor for direct seeding.

关键词： cytochrome c oxidase natural variation rice seed vigor

Introgression of lac6/tl1/du13 improves the palatability of japonica rice

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The crop Journal 2024年第4期12卷 1259-1265页

作者： Yong Yang Tao Zhang Yuliang Shi Yan Lu Qianfeng Li Xiaolei Fan Lichun Huang Lu Chen Xuetang Song Qing Liu Changquan Zhang Qiaoquan Liu Jiangsu key laboratory of crop Genomics and Molecular Breeding/Zhongshan Biological Breeding laboratory/key laboratory of Plant Functional Genomics of the Ministry of Education Agricultural College of Yangzhou UniversityYangzhou 225009JiangsuChina Jiangsu Co-Innovation Center for Modern Production Technology of Grain crops/Jiangsu key laboratory of crop Genetics and Physiology Yangzhou UniversityYangzhou 225009JiangsuChina Jiang Su(Wu Jin)rice Research institute Changzhou 213175JiangsuChina

Amylose content(AC)is a crucial determinant of the eating and cooking quality(ECQ)of rice,with low AC varieties exhibiting a softer texture and greater stickiness-attributes that enhance palatability and are desirable in specific culinary *** harness these traits,significant efforts have been made to manipulate AC to improve rice *** research utilized the MutMap+approach to identify LAC6/TL1,a gene that is an allele of Du13,responsible for low ***6 encodes a C2H2 zinc finger protein,which specifically increases the splicing efficiency of the Wxb allele without affecting the Wxa *** studies of LAC6 revealed that its proper integration could rectify the undesirable AC phenotype,whereas mutations within this gene led to reduced AC and were associated with shorter grain length and decreased thousand-grain *** these drawbacks,such mutations positively impact rice palatability,presenting a trade-off between grain size and eating *** address the challenges posed by the reduced grain weight associated with LAC6 mutations,we developed a specific molecular marker for LAC6,which has been effectively used in breeding programs to select lac6/tl1/du13 homozygous individuals with larger grain *** findings demonstrate that the“small grain”trait associated with lac6/tl1/du13 can be effectively mitigated through combined phenotype-based and marker-assisted *** study highlights the potential of lac6/tl1/du13 as a valuable gene for breeding novel,high-quality soft rice varieties through targeted breeding strategies.

关键词： rice Dull endosperm Amylose content Wx Breeding

Recognition of the inducible,secretory small protein OsSSP1 by the membrane receptor OsSSR1 and the co-receptor OsBAK1 confers rice resistance to the blast fungus

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Molecular Plant 2024年第5期17卷 807-823页

作者： Tianfeng Zhao Shijie Ma Ziying Kong Haimiao Zhang Yi Wang Junzhe Wang Jiazong Liu Wanzhen Feng Tong Liu Chunyan Liu Suochen Liang Shilin Lu Xinyu Li Haipeng Zhao Chongchong Lu Muhammad Zunair Latif Ziyi Yin Yang Li Xinhua Ding State key laboratory of crop biology Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect PestsCollege of Plant ProtectionShandong Agricultural UniversityTaian 271018ShandongChina College of Breeding and Multiplication(Sanya institute of Breeding and Multiplication) Hainan UniversitySanya 572024HainanChina

The plant apoplast,which serves as the frontline battleground for long-term host–pathogen interactions,harbors a wealth of disease resistance ***,the identification of the disease resistance proteins in the apoplast is relatively *** this study,we identified and characterized the rice secretory protein OsSSP1(Oryza sativa secretory small protein 1).OsSSP1 can be secreted into the plant apoplast,and either in vitro treatment of recombinant OsSSP1 or overexpression of OsSSP1 in rice could trigger plant immune *** expression of OsSSP1 is suppressed significantly during Magnaporthe oryzae infection in the susceptible rice variety Taibei 309,and OsSSP1-overexpressing lines all show strong resistance to *** the knockout and overexpression results,we found that OsSSP1 positively regulates plant immunity in response to fungal ***,the recognition and immune response triggered by OsSSP1 depend on an uncharacterized transmembrane OsSSR1(secretory small protein receptor 1)and the key co-receptor OsBAK1,since most of the induced immune response and resistance are lost in the absence of OsSSR1 or ***,the OsSSP1 protein is relatively stable and can still induce plant resistance after 1 week of storage in the open environment,and exogenous OsSSP1 treatment for a 2-week period did not affect rice ***,our study reveals that OsSSP1 can be secreted into the apoplast and percepted by OsSSR1 and OsBAK1 during fungal infection,thereby triggering the immune response to enhance plant resistance to *** findings provide novel resources and potential strategies for crop breeding and disease control.

关键词： rice plant apoplast OsssP1 receptor plant resistance Magnaporthe oryzae

Genetic and molecular mechanisms of reproductive isolation in the utilization of heterosis for breeding hybrid rice

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Journal of Genetics and Genomics 2024年第6期51卷 583-593页

作者： Chaolong Wang Xiaowen Yu Jian Wang Zhigang Zhao Jianmin Wan State key laboratory for crop Genetics&Germplasm Enhancement and Utlization Nanjing Agricultural UniversityZhongshan Biological Breeding LaboratoryNanjingJiangsu210095China State key laboratory of crop Gene Resources and Breeding Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China

Heterosis,also known as hybrid vigor,is commonly observed in rice *** hybridization of rice species or subspecies exhibits robust hybrid vigor,however,the direct harnessing of this vigor is hindered by reproductive ***,we review recent advances in the understanding of the molecular mechanisms governing reproductive isolation in inter-subspecific and inter-specific *** review encompasses the genetic model of reproductive isolation within and among Oryza sativa species,emphasizing the essential role of mitochondria in this ***,we delve into the molecular intricacies governing the interaction between mitochondria and autophagosomes,elucidating their significant contribution to reproductive ***,our exploration extends to comprehending the evolutionary dynamics of reproductive isolation and speciation in *** on these advances,we offer a forward-looking perspective on how to overcome the challenges of reproductive isolation and facilitate the utilization of heterosis in future hybrid rice breeding endeavors.

关键词： Hybrid vigor Reproductive isolation Hybrid ricebreeding

Salinity Stress Deteriorates Grain Yield and Increases 2-Acetyl-1-Pyrroline Content in rice

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rice science 2024年第4期31卷 371-374,I0015-I0021页

作者： WEI Huanhe MA Weiyi ZHANG Xiang ZUO Boyuan GENG Xiaoyu WANG Lulu ZHU Wang CHEN Yinglong HUO Zhongyang XU Ke MENG Tianyao DAI Qigen Jiangsu key laboratory of crop Cultivation and Physiology/Jiangsu key laboratory of crop Genetics and Physiology/Jiangsu Co-Innovation Center for Modern Production Technology of Grain crops/key laboratory of Saline-Alkali Soil Reclamation and Utilization in Coastal Areas the Ministry of Agriculture and Rural Affairs of China/East China Branch of National Center of Technology Innovation for Saline-Alkali Tolerant Rice/Research Institute of Rice Industrial Engineering TechnologyYangzhou UniversityYangzhou 225009China institutes of Agricultural science and Technology Development/Joint International Research laboratory of Agriculture and Agri-Product Safety the Ministry of Education of ChinaYangzhou UniversityYangzhou 225009China

Salinity stress greatly impacts rice grain yield and quality, as well as the 2-acetyl-1-pyrroline(2-AP) content in grains. The present study was conducted with Nanjing 9108(NJ9108, conventional japonica rice) and Wenliangyou 669(WLY669, indica hybrid rice) in the fields with non-salinity(NS), low salinity(LS), and high salinity(HS) stresses in 2021 and 2022.

关键词： salinity Yield erior

Transcriptional landscape of cotton roots in response to salt stress at single-cell resolution

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Plant Communications 2024年第2期5卷 46-66页

作者： Pengtao Li Qiankun Liu Yangyang Wei Chaozhu Xing Zhongping Xu Fang Ding Yuling Liu Quanwei Lu Nan Hu Tao Wang Xiangqian Zhu Shuang Cheng Zhaoguo Li Zilin Zhao Yanfang Li Jiangping Han Xiaoyan Cai Zhongli Zhou Kunbo Wang Baohong Zhang Fang Liu Shuangxia Jin Renhai Peng College of biology and Food Engineering Anyang Institute of TechnologyAnyangHenan 455000China State key laboratory of Cotton biology Institute of Cotton ResearchChinese Academy of Agricultural SciencesAnyangHenan 455000China Research Base Anyang Institute of TechnologyState Key Laboratory of Cotton BiologyAnyang 455000HenanChina School of Life sciences Zhengzhou UniversityZhengzhouHenan 450001China Hubei Hongshan laboratory National Key Laboratory of Crop Genetic ImprovementHuazhong Agricultural UniversityWuhanHubeiChina Hubei key laboratory of Plant Pathology Huazhong Agricultural UniversityWuhanHubei 430070China Department of biology East Carolina UniversityGreenvilleNC 27858USA

Increasing soil salinization has led to severe reductions in plant yield and quality,and investigating the mo-lecular mechanism of salt stress response is therefore an urgent *** this study,we systematically analyzed the response of cotton roots to salt stress using single-cell transcriptomics technology;56281 high-quality cells were obtained from 5-day-old lateral root tips of Gossypium arboreum under natural growth conditions and different salt *** cell types with an array of novel marker genes were identified and confirmed by in situ RNA hybridization,and pseudotime analysis of some specific cell types revealed their potential differentiation *** changes in cell numbers under salt stress were observed for outer epidermal and inner endodermal cells,which were significantly enriched in response to stress,amide biosynthetic process,glutathione metabolism,and glycolysis/*** of differentially expressed genes identified in multiple comparisons revealed other functional ag-gregations concentrated on plant-type primary cell wall biogenesis,defense response,phenylpropanoid biosynthesis,and metabolic *** candidate differentially expressed genes encoding transcrip-tion factors or associated with plant hormones also responsive to salt stress were identified,and the func-tion of Ga03G2153,annotated as auxin-responsive GH3.6,was confirmed by virus-induced gene *** GaGH3.6-silenced plants showed a severe stress-susceptible phenotype,and physiological and biochemical measurements indicated that they suffered more significant oxidative *** results suggest that GaGH3.6 might participate in cotton salt tolerance by regulating redox *** thus construct a transcriptional atlas of salt-stressed cotton roots at single-cell resolution,enabling us to explore cellular heterogeneity and differentiation trajectories and providing valuable insights into the mo-lecular mechanisms that underlie plan

关键词： cotton salt stress scRNA-seq root cell types virus-induced gene silencing