检索结果-南通市图书馆

Fire blight QTL analysis in a multi-family apple population identifies a reduced-susceptibility allele in ‘Honeycrisp’

引用

Horticulture research 2021年第1期8卷 355-367页

作者： Sarah A.Kostick Soon Li Teh John L.Norelli Stijn Vanderzande Cameron Peace Kate M.Evans tree fruit research and Extension center Department of HorticultureWashington State UniversityWenatcheeWA 98801USA United States Department of Agriculture Agricultural Research ServiceAppalachian Fruit Research LaboratoryKearneysvilleWV 25430USA Department of Horticulture Washington State UniversityPullmanWA 99164USA

Breeding apple cultivars with resistance offers a potential solution to fire blight,a damaging bacterial disease caused by Erwinia *** resistance alleles at quantitative trait loci(QTLs)were previously characterized in diverse Malus germplasm with poor fruit quality,which reduces breeding *** study utilized a pedigree-based QTL analysis approach to elucidate the genetic basis of resistance/susceptibility to fire blight from multiple genetic sources in germplasm relevant to *** breeding ***-seven important breeding parents(IBPs)were represented by 314 offspring from 32 full-sib families,with‘Honeycrisp’being the most highly represented *** resistance/susceptibility data from a two-year replicated field inoculation study and previously curated genome-wide single nucleotide polymorphism data,QTLs were consistently mapped on chromosomes(Chrs.)6,7,and *** QTLs together explained~28% of phenotypic *** Chr.6 and Chr.15 QTLs colocalized with previously reported QTLs,while the Chr.7 QTL is possibly novel.‘Honeycrisp’inherited a rare reduced-susceptibility allele at the Chr.6 QTL from its grandparent‘Frostbite’.The highly resistant IBP‘Enterprise’had at least one putative reduced-susceptibility allele at all three *** general,lower susceptibility was observed for individuals with higher numbers of reduced-susceptibility alleles across *** study highlighted QTL mapping and allele characterization of resistance/susceptibility to fire blight in complex pedigree-connected apple breeding *** gained will enable more informed parental selection and development of trait-predictive DNA tests for pyramiding favorable alleles and selection of superior apple cultivars with resistance to fire blight.

关键词： blight breeding cultivar

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Marker Assisted Selection in Citrus Rootstock Breeding Based on a Major Gene Locus ‘Tyr1’Controlling Citrus Nematode Resistance

引用

Agricultural Sciences in China 2010年第4期9卷 557-567页

作者： XIANG Xu DENG Zhan-ao CHEN Chun-xian Fred G Gmitter Jr Kim Bowman Institute of fruit tree research Guangdong Academy of Agricultural Sciences Guangzhou 510640 P.R.China Gulf Coast research and education center University of Florida Bradenton FL34203 USA Citrus research and education center University of Florida Lake Alfred FL33850 USA US Horticultural research Laboratory United States Department of Agriculture Ft. Pierce FL34945-3030 USA

Based on the former constructed ＇Tyrl＇ locus genetic map in family 9145, from LB6-2 [Clementine mandarin （C. reticulata） × Hamlin orange （C. sinensis）] × Swingle citrumelo （C. paradise × P. trifoliata）, 9 markers were chosen for application in evaluating their effectiveness in marker-assisted selection （MAS） for citrus rootstock breeding program from many F1 progeny of Poncirus trifoliata. As the mapping revealed that these markers were estimated within a range of 12.1 cM in the linkage group, and among them, SCO07 co-segregated with ＂Tyrl＇, and 7A4R as the closest to ＇Tyrl＇ with a distance of 1.5 cM, these markers were basically fitful to go MAS screening. The results of screening P. trifoliata F1 progeny indicated that all the markers were inherited in codominant fashion and most of them were heterozygous on PT （Pomery of P. trifoliata）., marker 4L17R/CfoI and 7A4（1407）/BfaI were proved to be consistently reliable for accurate scoring of genotypes and the revealed polymorphism was basically coincided with the citrus nematode resistant phenotype within tested populations. The polymorphic genotype with marker 4L17R/Cfol was found completely matched up with the phenotype of individuals that conferred high resistance to citrus nematode when the USDA hybrid rootstocks were screened. Utilization of these markers, especially the highly specific 4L17R/Cfol and 7A4（1407）/Bfal, should result in great benefit to world citrus industry for early selection in rootstock-breeding program.

关键词： citrus Poncirus trifoliata nematode resistance marker-assisted selection

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multiple locus genealogies and phenotypic characters reappraise the causal agents of apple ring rot in China

引用

Fungal Diversity 2015年第2期71卷 215-231页

作者： Chao Xu Chunsheng Wang Liangliang Ju Rong Zhang Alan R.Biggs Eiji Tanaka Bingzhi Li Guangyu Sun Key Laboratory of Crop Stress Biology in Arid Areas College of Plant ProtectionNorthwest A&F UniversityNo.3 Taicheng RoadYangling 712100ShaanxiChina College of Horticulture Northwest A&F UniversityNo.3 Taicheng RoadYangling 712100ShaanxiChina kearneysville tree fruit research and education center West Virginia UniversityP.O.Box 609KearneysvilleWV 25443USA Division of Environmental Science Ishikawa Prefectural UniversitySuematsu 1-308NonoichiIshikawa 921-8836Japan

Apple ring rot inflicts severe economic losses in the main apple producing areas of East *** causal agent of the disease has been variously identified as Macrophoma kuwatsukai,Physalospora piricola and Botryosphaeria berengeriana ***,although *** is currently the most widely accepted pathogen *** taxonomic uncertainty has delayed research that is needed to manage effectively this destructive *** the present study,genealogical concordance phylogenetic species recognition(GCPSR)was applied to pathogenic fungal isolates from apple and pear from several locations in China,along with several reference *** results based on sequences of four nuclear loci(ITS,EF-1α,HIS and HSP)revealed the existence of two species within the examined *** includes an ex-epitype isolate of *** and the other includes an isolate that was previously designated as *** ***,the latter taxon presented an appressed mycelial mat on PDA whereas *** displayed columns of aerial mycelia reaching the lids,and conidia of the latter species were longer than *** dothidea had a faster growth rate than the latter taxon under relatively high *** tests showed that on pear stems the latter taxon caused large-scale cankers along with blisters whereas *** was non-pathogenic,but on apple shoots the two fungi induced large and small wart-like prominences,***,this cryptic species demonstrated sufficient genetic variations and biological differences from *** a result of taxonomic study,we described here the latter taxon in a new combination,Botryosphaeria kuwatsukai and designate an *** *** and *** are considered to be the main causal agents for apple ring rot in China and Japan.

关键词： Botryosphaeriaceae Pear Multi-gene phylogeny Pathogenicity Group I intron Taxonomy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Defining the‘HoneySweet’insertion event utilizing NextGen sequencing and a de novo genome assembly of plum(Prunus domestica)

引用

Horticulture research 2021年第1期8卷 25-37页

作者： Ann M.Callahan Tetyana N.Zhebentyayeva Jodi L.Humann Christopher A.Saski Kelsey D.Galimba Laura L.Georgi Ralph Scorza Dorrie Main Christopher D.Dardick USDA-ARS Appalachian Fruit Research StationKearneysvilleWV 25430USA The Schatz center for tree Molecular Genetics Department of Ecosystem Science and ManagementThe Pennsylvania State UniversityUniversity ParkPA 16802USA Department of Horticulture Washington State UniversityPullmanWA 99164USA Plant and Environmental Sciences Department Clemson UniversityClemsonSC 29634USA Department of Genetics and Biochemistry Clemson UniversityClemsonSC 29634USA

HoneySweet’plum(Prunus domestica)is resistant to Plum pox potyvirus,through an RNAi-triggered *** the precise nature of the transgene insertion event has been complicated due to the hexaploid genome of *** blots previously indicated an unintended hairpin arrangement of the Plum pox potyvirus coat protein gene as well as a multicopy insertion *** confirm the transgene arrangement of the insertion event,‘HoneySweet’DNA was subjected to whole genome sequencing using Illumina short-read *** indicated two different insertion events,one containing seven partial copies flanked by putative plum DNA sequence and a second with the predicted inverted repeat of the coat protein gene driven by a double 35S promoter on each side,flanked by plum *** determine the locations of the two transgene insertions,a phased plum genome assembly was developed from the commercial plum‘Improved French’.A subset of the scaffolds(2447)that were>10 kb in length and representing,>95%of the genome were annotated and used for alignment against the‘HoneySweet’transgene *** of eight matching scaffolds spanned both insertion sites ranging from 157,704 to 654,883 bp apart,however we were unable to identify which scaffold(s)represented the actual location of the insertion sites due to potential sequence differences between the two plum ***,there was no evidence of any gene(s)being interrupted as a result of the ***,RNA-seq data verified that the insertions created no new transcriptional units and no dramatic expression changes of neighboring genes.

关键词： plum insertion Sweet

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genetic characterization of worldwide Prunus domestica(plum)germplasm using sequence-based genotyping

引用

Horticulture research 2019年第1期6卷 1807-1819页

作者： Tetyana Zhebentyayeva Vijay Shankar Ralph Scorza Ann Callahan Michel Ravelonandro Sarah Castro Theodore DeJong Christopher A.Saski Chris Dardick The Schatz center for tree Molecular Genetics Department of Ecosystem Sciences and ManagementThe Pennsylvania State UniversityUniversity ParkPA16802USA Genomics and Computational Biology Laboratory Clemson UniversityClemsonSC 29634USA USDA Appalachian fruit research Laboratory KearneysvilleWV 25430USA UMR BFP1332-INRA-Bordeaux Bordeaux II University33882 Villenave d’OrnonFrance Department of Plant Sciences University of CaliforniaDavisCA 95616USA

Prunus domestica commonly known as European plum is a hexaploid fruit tree species cultivated around the *** it is used for fresh consumption,in jams or jellies,and the production of spirits while commercially the fruit is primarily sold dried(prunes).Despite its agricultural importance and long history of cultivation,many questions remain about the origin of this species,the relationships among its many pomological types,and its underlying ***,we used a sequence-based genotyping approach to characterize worldwide plum germplasm including the potential progenitor Eurasian plum *** of 405 DNA samples established a set of four clades consistent with the pomological groups Greengages,Mirabelles,European plums,and d’Agen(French)prune plums.A number of cultivars from each clade were identified as likely clonal selections,particularly among the“French”type prune germplasm that is widely cultivated ***,there was relatively low genetic diversity across all cultivated plums suggesting they have been largely inbred and/or derived from a limited number of *** results agree with *** having originated as an interspecific hybrid of a diploid *** and a tetraploid *** that itself may have been an interspecific hybrid of *** and an unknown Eurasian plum *** low genetic diversity and lack of true wild-types coupled with the known cultivation history of Eurasian plums imply that *** may have been a product of inter-specific cross breeding and artificial selection by early agrarian Eurasian societies.

关键词： germplasm breeding cultivar

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Influence of physiological and environmental factors on the diurnal variation in emissions of biogenic volatile compounds from Pinus tabuliformis

引用

Journal of Environmental Sciences 2019年第7期31卷 102-118页

作者： Jungang Chen Huaxing Bi Xinxiao Yu Yanlin Fu Wenchao Liao College of Soil and Water Conservation Beijing Forestry University Institute of Ecology College of Urban and Environmental Sciences and Key Laboratory for Earth Surface Processes of the Ministry of Education Peking University Ji County Station Chinese National Ecosystem Research Network (CNERN) Key Laboratory of State Forestry Administration on Soil and Water Conservation Beijing Forestry University Beijing Engineering research center of Soil and Water Conservation Beijing Forestry University Engineering research center of Forestry Ecological Engineering Ministry of Education Beijing Forestry University Beijing Collaborative Innovation center for Eco-Environmental Improvement With Forestry and fruit trees Beijing Water Consulting Co. LTD

Biological volatile organic compounds(BVOCs) have a large influence on atmospheric environmental quality, climate change and the carbon cycle. This study assesses the composition and diurnal variation in emission rates of BVOCs from Pinus tabuliformis, using an enclosure technique. Environmental parameters(temperature and light intensity) and physiological parameters(net photosynthetic rate, P_n; stomatal conductance, g_s; intercellular CO_2 concentration, C_i; and transpiration rate, T_r) that may affect emission behavior were continuously monitored. The 10 most abundant compound groups emitted by P. tabuliformis were classified by gas chromatography–mass spectrometry. The dominant monoterpenoid compounds emitted were α-pinene, β-myrcene, α-farnesene and limonene. The diurnal emission rate of BVOCs changed with temperature and light intensity, with dynamic analysis of BVOCs emissions revealing that their emission rates were more affected by temperature than light. The variation in monoterpene emission rates was consistent with estimates of P_n, g_s and T_r. Basal emission rates(at 30 °C,) of the main BVOCs ranged from 0.006 to 0.273 μg^(-1)/(hr g),while the basal ER standardization coefficients ranged from 0.049 to 0.144 °C^(-1). Overall, these results provide a detailed reference for the effective selection and configuration of tree species to effectively prevent and control atmospheric pollution.

关键词： Biogenic volatile organic compounds Pinus tabuliformis Emission rate Monoterpenes

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

The relationship between severity of apple Valsa canker and leaf nutrition

The relationship between severity of apple Valsa canker and ...

引用

中国菌物学会2015年学术年会

作者： Haixia Peng Xiaoyong Wei Yunxue Xiao Yue Sun Alan R.Biggs Mark L.Gleason Guangyu Sun College of Plant Protection & Shaanxi Key Laboratory of Molecular Biology for Agriculture Northwest A&F University Faculty of Science National University of Singapore kearneysville tree fruit research and education center West Virginia University Department of Plant Pathology and Microbiology Iowa State University

Valsa canker, caused by the fungus Valsa mali, is one of the most destructive diseases of apple in the primary production areas of China and other East Asian countries. Currently there are no effective control methods for this disease. We investigated the occurrence of Valsa canker in 24 apple orchards in Shaanxi Province in concert with foliar nutrient analysis, and found that there was a significant negative correlation of leaf potassium（K） content with incidence and severity of Valsa canker. Fertilization experiments showed that increasing tree K content enhanced resistance to pathogen colonization and establishment. Apple trees with leaf K content greater than 1.30% exhibited almost complete resistance to V. mali. Field trials demonstrated that increasing K fertilization could significantly reduce disease incidence. Improved management of tree nutrition, especially K content, could effectively control the occurrence and development of apple Valsa canker.

关键词： apple Valsa canker leaf nutrition analysis potassium resistance

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Comparative transcriptome analysis identifies differentially expressed genes between normal and late-blooming Siberian apricot

引用

Journal of Forestry research 2019年第6期30卷 2277-2288页

作者： Zhe Wang Shuang Song Songbai Sheng Ju Tian Rongling Wu Xiaoming Pang Beijing Advanced Innovation center for tree Breeding by Molecular Design National Engineering Laboratory for Tree BreedingKey Laboratory of Genetics and Breeding in Forest Trees and Ornamental PlantsMinistry of EducationCenter for Computational BiologyCollege of Biological Sciences and BiotechnologyBeijing Forestry UniversityBeijing 100083People’s Republic of China center for Computational Biology College of Biological Sciences and BiotechnologyBeijing Forestry UniversityBeijing 100083People’s Republic of China Inner Mongolia Hesheng Ecological Science and Technology research Institute Huhhot 011517People’s Republic of China

Blooming date is an important trait in fruit tree *** several quantitative trait loci confirming blooming date were identified in Prunus spp.,the molecular mechanism underlying it remains *** from this,the transcriptomes of normal blooming and lateblooming Siberian apricot(*** L.)flower buds were analyzed using RNA-seq technology.A total of 68,855 unigenes were de novo assembled,among which 1204 were differentially expressed between normal and late *** ontology enrichment analysis revealed that biological processes were enriched with metabolic *** catalytic-related gene transcripts between the two types of blooming were significantly changed in the molecular *** Encyclopedia of Genes and Genomes pathway analysis showed that 156 genes were successfully annotated and 75 pathways *** for gibberellin biosynthesis were up-regulated in normal blooming,whereas abscisic acid degradation-related genes were also up-regulated in normal ***,circadian rhythms related genes including EARLY FLOWERING 4,LATE ELONGATED HYPOCOTYL and CIRCANDIAN CLOCK ASSOCIATED1 were all up-regulated in normal blooming,indicating that circadian rhythms have a very important role in controlling blooming ***,zinc finger protein CONSTANS-LIKE 12 was blasted onto the quantitative trait loci region on linkage group 4 in ***,changes in the abundance of key flowering genes such as SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1,FLOWERING LOCU T,LEAFY and FLOWERING LOCUS C were not significantly different,indicating that further investigation should explore the function of these genes on blooming *** outcomes of this study will provide a valuable platform for further research on the molecular mechanism of blooming date in Prunus.

关键词： Blooming date Differentially expressed genes(DEGs) Flowering time Siberian apricot Transcriptome

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

富士苹果霉心、褐变、心腐病病原学

富士苹果霉心、褐变、心腐病病原学

引用

2012年中国菌物学会学术年会

作者：高玲玲张强孙鑫尧张荣孙广宇 Alan R.Biggs 西北农林科技大学植物保护学院 kearneysville tree fruit research and education center West Virginia UniversityKearneysville 25430

从陕西省果园随机采集富士苹果样品,从健康和显现褐变、典型的霉心症状和心腐症状的果核处分离真菌,获得186个菌株。根据核苷酸系统发育分析和形态学鉴定,所有菌株均鉴定到种。致病性测定采用将果实均分为两半,分别用1×10到1×10孢子/m... 详细信息

从陕西省果园随机采集富士苹果样品,从健康和显现褐变、典型的霉心症状和心腐症状的果核处分离真菌,获得186个菌株。根据核苷酸系统发育分析和形态学鉴定,所有菌株均鉴定到种。致病性测定采用将果实均分为两半,分别用1×10到1×10孢子/ml悬浮液对心皮进行无伤接种。结果显示不同属的真菌致病性差异很大,症状类型与菌种浓度有关:链格孢Alternaria spp.和枝孢Cladosporium spp.在低浓度下产生褐变,在高浓度下产生霉心症状。不同浓度的菌种组合比单独菌种接种产生同样的症状需要的接种体浓度要低。附球菌Epicoccum和茎点霉Phoma主要引起心干腐,而聚端孢Trichothecium、镰刀菌Fusarium和青霉Penicillium主要引起心湿腐。褐变类型为首次描述的症状类型。链格孢、细极链格孢、枝状链格孢、枝状枝孢、细极枝孢为褐变和霉心症状的主要病原。

关键词：接种体霉心病心腐病

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Small RNAs, emerging regulators critical for the development of horticultural traits

引用

Horticulture research 2018年第1期5卷 285-298页

作者： Chengjie Chen Zaohai Zeng Zongrang Liu Rui Xia State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources South China Agricultural UniversityGuangzhou510642China Key Laboratory of Biology and Germplasm Enhancement of Horticultural Crops in South China Ministry of AgricultureSouth China Agricultural UniversityGuangzhou510642China Guangdong Litchi Engineering research center College of HorticultureSouth China Agricultural UniversityGuangzhou510642China Appalachian fruit research Station Agricultural Research ServiceUnited States Department of AgricultureKearneysvilleWV25430USA

Small RNAs(sRNAs)have been recently recognized as key genetic and epigenetic regulators in various organisms,ranging from the modification of DNA and histone methylations to the modulation of the abundance of coding or non-coding *** plants,major regulatory sRNAs are classified as respective microRNA(miRNA)and small interfering RNA(siRNA)species,with the former primarily engaging in posttranscriptional regulation while the latter in transcriptional *** of these characterized sRNAs are involved in regulation of diverse biological programs,processes,and pathways in response to developmental cues,environmental signals/stresses,pathogen infection,and pest ***,sRNAs-mediated regulations have also been extensively investigated in horticultural plants,with many novel mechanisms unveiled,which display far more mechanistic complexity and unique regulatory features compared to those studied in model ***,we review the recent progress of sRNA research in horticultural plants,with emphasis on mechanistic aspects as well as their relevance to trait *** that major and pioneered sRNA research has been carried out in the model and other plants,we also discuss ongoing sRNA research on these *** miRNAs and phased siRNAs(phasiRNAs)are the most studied sRNA regulators,this review focuses on their biogenesis,conservation,function,and targeted genes and traits as well as the mechanistic relation between them,aiming at providing readers comprehensive information instrumental for future sRNA research in horticulture crops.

关键词： Small critical latter

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：