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Map-based cloning of a novel QTL qBN-1 influencing branch number in soybean[Glycine max(L.)Merr.]

The Crop Journal 2020年第5期8卷 793-801页

作者： Sobhi F.Lamlom Yong Zhang Bohong Su Haitao Wu Xia Zhang Jindong Fu Bo Zhang Li-Juan Qiu National Key Facility for Gene resources and genetic Improvement/Key Laboratory of Crop Germplasm Utilization Ministry of AgricultureInstitute of Crop SciencesChinese Academy of Agricultural ScienceBeijing 100081China plant Production department Faculty of Agriculture Saba BashaAlexandria UniversityAlexandria 21531Egypt Keshan Branch of Heilongjiang Academy of agricultural Sciences Keshan 161606HeilongjiangChina College of Agronomy Northeast Agricultural UniversityHarbin 150030HeilongjiangChina School of plant and Environmental Sciences Virginia Polytechnic Institute and State UniversityBlacksburgVA 24060USA

Branch number(BN)is an important agronomic attribute related to the plant architecture,adaptability,and yield of *** date,few studies ofBNhave been conducted to elucidate its genetic *** aimed to localize genetic factors affecting BN using segregating populations derived fromthe high-branching cultivar‘Kennong24’(KN24)and the low-branching cultivar‘Kenfeng19’(KF19).Composite interval mapping analysis detected a QTL(qBN-1)on chromosome 6 between the SSR markers BARCSOYSSR_06_0993 and BARCSOYSSR_06_1070 using an F2 *** fine-map qBN-1,a RIL population was developed and genotyped with 14 SSRmarkers located in the QTL ***-1 was localized to a 115.67-kb interval flanked by markers BARCSOYSSR_06_1048 and BARCSOYSSR_06_*** QTL was further confirmed using backcross populations of size 1305(BC2F2 with KN24 as a recurrent parent)and 1712(BC3F2 with KF19 as a recurrent parent).The fine-mapping region of qBN-1 contained only two candidate genes,Glyma.06G208800 and Glyma.06G208900,whose expression patterns were investigated by *** to Glyma.06G208800 gene expression,Glyma.06G208900 showed the highest expression of the two genes and showed a significant difference in expression between high-and low-branching genotypes in either axillary meristem or shoot apical meristem,and showed opposite expression patterns in the two tissues at V4 and R1 *** results identify Glyma.06G208900 as a novel candidate gene controlling *** together,the results of this study provide a foundation for cloning and functional analysis of the qBN-1 gene and for the improvement of BN bymarker-assisted selection in soybean breeding.

关键词： soybean cultivar Glycine

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Resequencing of 145 Landmark Cultivars Reveals Asymmetric Sub-genome Selection and Strong Founder Genotype Effects on Wheat breeding in China

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Molecular plant 2020年第12期13卷 1733-1751页

作者： Chenyang Hao Chengzhi Jiao Jian Hou Tian Li Hongxia Liu Yuquan Wang Jun Zheng Hong Liu Zhihong Bi Fengfeng Xu Jing Zhao Lin Ma Yamei Wang Uzma Majeed Xu Liu Rudi Appels Marco Maccaferri Roberto Tuberosa Hongfeng Lu Xueyong Zhang Key Laboratory of Crop Gene resources and Germplasm Enhancement Ministry of Agriculture and Rural Affairs/The National Key Facility for Crop Gene Resources and Genetic Improvement/Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China Novogene Bioinformatics institute Beijing 100083China AgriBio Centre for AgriBioscienceDepartment of Economic DevelopmentJobsTransportand Resources5 Ring RoadLa Trobe UniversityBundooraVIC 3083Australia department of agricultural and Food Sciences University of BolognaBolognaItaly

Controlled pedigrees and the multi-decade timescale of national crop plant breeding programs offer a unique experimental context for examining how selection affects plant *** than 3000 wheat cultivars have been registered,released,and documented since 1949 in *** this study,a set of 145 elite cultivars selected from historical points of wheat breeding in China were re-sequenced.A total of 43.75 Tb of sequence data were generated with an average read depth of 17.94x for each cultivar,and more than 60.92 million SNPs and 2.54 million InDels were captured,based on the Chinese Spring RefSeq genome *** years of breeder-driven selection led to dramatic changes in grain yield and related phenotypes,with distinct genomic regions and phenotypes tar-geted by different breeders across the *** are very clear instances illustrating how introduced Italian and otherforeign germplasm was integrated into Chinese wheat programs and reshaped the genomic landscape of local modern ***,the resequencing data also highlighted significant asymmetric breeding selec-tion among the three sub-genomes:this was evident in both the collinear blocks for homeologous chromosomes and among sets of three homeologous *** of more newly assembled genes in newer cultivars implied the potential value of these genes in *** and extended sharing of linkage disequilibrium(LD)blocks was highlighted among pedigree-related cultivars,in which fewer haplotype differences were *** or replacement of haplotypes from founder genotypes after generations of breeding was related to their breeding *** on the haplotype frequency changes in LD blocks of pedigree-related cultivars,we propose a strategy for evaluating the breeding value of any given line on the basis of the accumulation(pyramiding)of bene-ficial ***,our study demonstrates the influence of "founder genotypes" on the output of breeding effort

关键词： wheat breeding asymmetric selection founder genotype haplotype block

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The Past, Present, and Future of Maize Improvement: Domestication, Genomics, and Functional Genomic Routes toward Crop Enhancement

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plant Communications 2020年第1期1卷 38-56页

作者： Jie Liu Alisdair R.Fernie Jianbing Yan National Key Laboratory of Crop genetic Improvement Huazhong Agricultural UniversityWuhan 430070China department of Molecular Physiology Max-Planck-Institute of Molecular Plant PhysiologyAm Muhlenberg 114476 Potsdam-GolmGermany

After being domesticated from teosinte,cultivated maize(Zea mays ***)spread worldwide and now is one of the most important staple *** to its tremendous phenotypic and genotypic diversity,maize also becomes to be one of the most widely used model plant species for fundamental research,with many important discoveries reported by maize ***,we provide an overview of the history of maize domestication and key genes controlling major domestication-related traits,review the currently available resources for functional genomics studies in maize,and discuss the functions of most of the maize genes that have been positionally cloned and can be used for crop ***,we provide some perspectives on future directions regarding functional genomics research and the breeding of maize and other crops.

关键词： maize domestication genomics functional genomics improvement

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Genome-wide characterization of early response genes to abscisic acid coordinating multiple pathways in Aegilops tauschii

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The Crop Journal 2021年第4期9卷 934-944页

作者： Yu Wei Liangjing Cao Xucheng Huang Xuan Wang Huan Wang Yongchao Song Qiang He Mingjie Lyu Xinwen Hu Jun Liu National Key Facility for Crop Gene resources and genetic Improvement Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijing 100081China institute of Tropical Agriculture and Forestry Hainan UniversityHaikou 570228HainanChina department of Biological Sciences Xi’an Jiaotong-Liverpool UniversitySuzhou 215123JiangsuChina Biotechnology Research institute Chinese Academy of Agricultural SciencesBeijing 100081China

The diploid wild goat grass Aegilops tauschii(Ae. tauschii, 2 n = 14;DD), as the D-sub genome of common wheat, provides rich germplasm resources for many aspects of wheat breeding. Abscisic acid(ABA) is an essential phytohormone that plays a pivotal role in plant adaptation to abiotic stresses. However,the gene regulation network of Ae. tauschii in response to ABA stress remains unclear. Here, we conducted a time-course strand-specific RNA-sequencing study to globally profile the transcriptome that responded to ABA treatment in Ae. tauschii. We identified 4818 differentially expressed transcription units/genes with time-point-specific induction/repression patterns. Using functional annotation, one-to-one ortholog and comparative transcriptome profiling analyses, we identified 319 ABA-responsive Ae. tauschii orthologs that were also induced/repressed under ABA treatment in hexaploid wheat. On the quantitative trait loci(QTL) used in wheat marker-assisted breeding, we found that the ABA-responsive expression patterns of eight Ae. tauschii orthologs were associated with drought stress tolerance, flowering process and/or grain quality. Of them, the ABA-responsive gene encoding sucrose:sucrose 1-fructosyltransferase in fructan and glucose metabolism pathways showed the most significant association with wheat drought tolerance. The characterization of ABA early-responsive genes in this study provides valuable information for exploring the molecular functions of the regulatory genes and will assist in wheat breeding.

关键词： Wheat Aegilops tauschii Transcriptome Abscisic acid Fructan

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Safflower Evaluation under Contrasted Environment Conditions and Selection of Promising Genotypes

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Journal of agricultural Science and Technology(B) 2014年第4期4卷 299-311页

作者： Lamyae Zraibi Miloud Kajeiou Hana Serghini Caid Abdelghani Nabloussi Laboratory of plants and Microorganisms Biology Biology Department Faculty of Sciences University of Mohamed PremierOujda 60000 Morocco Research Unit of plant breeding and plant genetic resources Conservation National Institute for Agricultural Research CRRAof Meknes Meknes 50000 Morocco

Development of stable crops cultivars adapted to environmental constraints is very important for food security. Safflower, an oilseed crop which tolerates environmental abiotic stresses, is suitable for marginal lands relatively dry and deprived from fertilizer inputs or irrigation. A set of Moroccan and introduced cultivars as well as international accessions were conducted at Oujda (Eastern of Morocco) during 2009-2010 for late and conventional sowing under two water regimes, in a field experiment using a completely randomized design, with three replications. The objective was to evaluate the effect of genotype and contrasting environment on safflower behavior and to select genotypes with large adaptation to the contrasted environmental conditions. Morphological, physiological and agronomic traits, as well as the stress susceptibility index (SSI), were recorded in this study. Results showed significant effect of genotype, year (sowing time), water regime and their interaction on most of the studied parameters. Late sowing and drought affected negatively all the parameters except seed oil which lightly increased under drought stress. Number of heads per plant (NHP) had the strongest association with seed yield under both drought and non-drought conditions, and hence could be taken as selection criterion for safflower seed yield improvement. Five accessions showed the highest overall mean seed yield (> 1,000 kg/ha) and four accessions exhibited the highest overall mean seed oil content (> 310 g/kg). For late sowing, the accessions PI262421 and PI537604 produced the highest seed yield (> 800 kg/ha) and the highest seed oil content (> 290 g/kg). For conventional sowing, the accessions PI250076 and PI250523 were the most performant, with a seed yield > 1,300 kg/ha and a seed oil content > 330 g/kg. Based on their mean productivity across environments, their SSI and their MDA, PI271073 and PI250076 could be selected and used as promising germplasm in safflower breeding

关键词：适应环境基因型红花种质资源种子产量种子含油量评价播种时间

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Population Structure Analysis and Genome-Wide Association Study of Tea(Camellia sinensis(L.)Kuntze)Germplasm in Qiannan,China,Based on SLAF-Seq Technology

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Phyton-International Journal of Experimental Botany 2022年第4期91卷 791-809页

作者： Fen Zhang Weili Tian Lu Cen Litang Lv Xiaofang Zeng Yulu Chen Yichen Zhao Yan Li The Key Laboratory of plant resources Conservation and Germplasm Innovation in Mountainous Region(Ministry of Education) Institute of Agro-Bioengineering and College of Life SciencesGuizhou UniversityGuiyang550025China College of Tea Sciences Guizhou UniversityGuiyang550025China

Duyun Maojian tea is a famous tea in *** this study,the specific-locus amplified fragment(SLAF)sequencing method was used to analyze the population structure and conduct a genome-wide association study(GWAS)of 2 leaf traits of 123 tea plants in Qiannan,China.A total of 462,019 SLAF tags and 11,362,041 single-nucleotide polymorphism(SNP)loci were *** results of phylogenetic tree analysis,cluster analysis,and principal component analysis showed that 123 tea germplasms were clustered into three groups,and the heterozygosity rates for Groups I,II,and II were 0.206,0.224,and 0.34,***,tea germplasms in a production area are clustered in a group,indicating that tea germplasms in different production areas have certain genetic *** traditional Duyun Maojian tea core production areas,TS and DC-SJ,are clustered into Group I and Group II respectively,while the ZY production area is relatively independent in Group ***,based on GWAS analysis,11 candidate genes related to leaf apex and 7 candidate genes related to leaf shape were *** study clarified the genetic relationship among eight Duyun Maojian tea production areas and obtained candidate genes related to leaf apex and leaf shape *** results showed that population structure and candidate genes are an effective basis for the breeding of Duyun Maojian tea germplasm.

关键词： Duyun maojian tea plant SLAF-seq SNP genetic structure leaf character GWAS

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Decoding altitude-activated regulatory mechanisms occurring during apple peel ripening

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Horticulture Research 2020年第1期7卷 1149-1160页

作者： Evangelos Karagiannis Michail Michailidis Georgia Tanou Federico Scossa Eirini Sarrou George Stamatakis Martina Samiotaki Stefan Martens Alisdair R.Fernie Athanassios Molassiotis Laboratory of Pomology Department of AgricultureAristotle University of Thessaloniki54124 ThessalonikiGreece institute of Soil and Water resources ELGO-DEMETERThermiThessaloniki 57001Greece Max-Planck-institute of Molecular plant Physiology Am Müehlenberg 1.Potsdam-Golm 14476Germany Council for agricultural Research and Economics Research Center for Genomics and BioinformaticsVia Ardeatina 54600178 RomeItaly institute of plant breeding and genetic resources ELGO-DEMETERThermiThessaloniki 57001Greece Biomedical Sciences Research Center“Alexander Fleming” Vari 16672Greece Fondazione Edmund Mach Centro Ricerca e InnovazioneDepartment of Food Quality and NutritionVia E.Mach138010 San Michele all’AdigeTNItaly

Apple(Malus domestica Borkh)is an important fruit crop cultivated in a broad range of environmental *** fruit ripening is a physiological process,whose molecular regulatory network response to different environments is still not sufficiently investigated and this is particularly true of the peel *** this study,the influence of environmental conditions associated with low(20 m)and high(750 m)altitude on peel tissue ripening was assessed by physiological measurements combined with metabolomic and proteomic analyses during apple fruit development and *** apple fruit ripening was itself not affected by the different environmental conditions,several key color parameters,such as redness and color index,were notably induced by high *** with this observation,increased levels of anthocyanin and other phenolic compounds,including cyanidin-3-O-galactoside,quercetin-3-O-rhamnoside,quercetin-3-O-rutinoside,and chlorogenic acid were identified in the peel of apple grown at high ***,the high-altitude environment was characterized by elevated abundance of various carbohydrates(e.g.,arabinose,xylose,and sucrose)but decreased levels of glutamic acid and several related proteins,such as glycine hydroxymethyltransferase and glutamate–glyoxylate *** processes affected by high altitude were the TCA cycle,the synthesis of oxidative/defense enzymes,and the accumulation of photosynthetic *** the obtained data we were able to construct a metabolite-protein network depicting the impact of altitude on peel *** combined analyses presented here provide new insights into physiological processes linking apple peel ripening with the prevailing environmental conditions.

关键词： altitude network prevailing

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Assessment of genetic Diversity of Moroccan Cultivated Almond(Prunus dulcis *** Webb)in Its Area of Extreme Diffusion,Using Nuclear Microsatellites

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American Journal of plant Sciences 2012年第9期3卷 1294-1303页

作者： Abdelali Elhamzaoui Ahmed Oukabli Jamal Charafi Mohiéddine Moumni Research Unit of plant breeding and genetic resources Regional Agricultural Research Centre of MeknesNational Agronomic Research InstituteMeknesMorocco Moulay Ismail University Faculty of ScienceDepartment of BiologyZitouneMeknèsMorocco

Assessment of genetic diversity of Moroccan cultivated almond (Prunus dulcis Mill.) grown from seed and cultivated at four eco-geographical regions was performed using 16 nuclear SSRs. 238 alleles were detected with an average of 14.88 alleles per locus, ranging from 4 (locus BPPCT027) to 24 (locus CPSCT018). The size of alleles ranged from 84 bp (locus UDP96-003) to 253 bp (locus UDP96-018). A high genetic diversity of the local almonds is apparent and structured into three major clusters (Oasis cluster, High and Anti Atlas cluster, and Middle Atlas cluster). Compared to the Mediterranean genetic pools, from the East to West, the genetic diversity tends to be limited in Morocco which is the area of its extreme diffusion.

关键词： Almond genetic Diversity Polymorphism Spatial genetic Structure Prunus dulcis Microsatellites SSR

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进化历史和气候条件共同影响中国木本植物花色的分布

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Journal of plant Ecology 2022年第1期15卷 196-207页

作者： Qinggang Wang Qiang Guo Xiulian Chi Shaoqi Zhu Zhiyao Tang department of Ecology and Ecological Engineering College of Resources and Environmental Sciencesand Key Laboratory of Biodiversity and Organic Farming of Beijing CityChina Agricultural UniversityBeijing 100193China institute of Ecology and Key Laboratory for Earth Surface Processes of the Ministry of Education College of Urban and Environmental SciencesPeking UniversityBeijing 100871China State Key Laboratory breeding Base of Dao-di Herbs National Resource Center for Chinese Materia MedicaChina Academy of Chinese Medical ScienceBeijing 100700China

本研究以中国木本植物为研究对象,主要探讨两个问题:(1)不同生活型物种花色组成的差异;(2)生物地理区、进化年龄和气候条件对不同花色地理分布格局的影响。研究使用7673种木本植物的物种分布数据和花色信息(分为白色、红色、黄色、黄绿... 详细信息

本研究以中国木本植物为研究对象,主要探讨两个问题:(1)不同生活型物种花色组成的差异;(2)生物地理区、进化年龄和气候条件对不同花色地理分布格局的影响。研究使用7673种木本植物的物种分布数据和花色信息(分为白色、红色、黄色、黄绿色、绿色和蓝紫色),并结合属级系统进化树来比较不同生活型(包括灌木、乔木和藤本)物种花色组成的差异,分析不同生物地理区、进化年龄和现代气候对花色地理格局的影响。研究结果表明,与乔木和藤本植物相比,灌木具有更高比例的由花青素着色的红色花和蓝紫色花物种。中国木本植物的花色地理格局受到区域效应和现代气候(尤其是降水和UVB辐射)的共同影响。倾向于蜂媒传粉的黄色花和蓝紫色花物种和由花青素着色、耐环境胁迫的红色花和蓝紫色花物种比例在中国西北部地区更高。绿色花物种的进化起源更早,但进化时间对花色地理格局的解释力很弱。这些结果说明中国木本植物花色的地理格局受到进化历史和现代环境的共同影响。

关键词：生活型进化年龄选择过程木本植物生物地理区

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Marker-Assisted Introgression of Quantitative Resistance Gene pi21 Confers Broad Spectrum Resistance to Rice Blast

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Rice science 2020年第2期27卷 113-123页

作者： Rosalyn B.ANGELES-SHIM Vincent P.REYES Marilyn Mdel VALLE Ruby S.LAPIS Junghyun SHIM Hidehiko SUNOHARA Kshirod K.JENA Motoyuki ASHIKARI Kazuyuki DOI plant breeding Division International Rice Research InstituteDAPO Box 7777Metro Manilathe Philippines Bioscience and Biotechnology Center Nagoya UniversityChikusa-ku Furo-choNagoyaAichi 464-8601Japan Graduate School of Bioagricultural Sciences Nagoya UniversityChikusa-ku Furo-choNagoyaAichi 464-8601Japan department of plant and Soil Science College of Agricultural Sciences and Natural ResourcesTexas Tech UniversityLubbockTexas 79409USA

The quantitative resistance gene pi21 from Sensho was introgressed to an indica breeding line IR63307-4B-13-2,a pyramiding line IRBB4/5/13/21,and a tropical japonica line Kinandang Patong by marker-assisted backcrossing.A total of 192 improved lines at the BC4F3 and BC4F4 generations were developed and confirmed to have the gene introgression via genotyping using a pi21-specific InDel *** randomly selected improved lines,representing all the three genetic backgrounds,demonstrated resistance against leaf blast composites in the field and a broader spectrum resistance against individual isolates compared to the recurrent parents in the ***,the tested lines exhibited pi21-acquired resistance against 11 leaf blast isolates that elicited susceptible reactions from the recurrent *** the tested lines maintained a comparative heading date,and similar or improved panicle length,number of primary branches per panicle and number of total grains per panicle relative to the recurrent *** physical grain characteristics of the recurrent parents were also maintained in the 13 lines tested,although variability in the amylose content and chalkiness degree was *** successful marker-assisted introgression of pi21 in diverse genetic backgrounds and the resulting broader spectrum resistance of improved lines against leaf blast indicate the potential of pi21 for deployment in cultivars grown across other rice growing regions in Asia.

关键词： rice blast pi21 gene marker-assisted breeding disease resistance

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