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黄瓜ERF基因家族鉴定及其在雌花芽分化中的表达分析 被引量:5
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作者 潘健 温海帆 +4 位作者 何欢乐 连红莉 王刚 潘俊松 蔡润 《中国农业科学》 CAS CSCD 北大核心 2020年第1期133-147,共15页
【目的】通过以黄瓜9930_V2版本基因组为参照进行生物信息学分析,对ERF基因家族在基因组中的数量、结构以及表达特征进行分析,为研究ERF转录因子在黄瓜雌花分化与发育中的作用提供数据支持。【方法】根据已报道的拟南芥ERF,利用黄瓜基... 【目的】通过以黄瓜9930_V2版本基因组为参照进行生物信息学分析,对ERF基因家族在基因组中的数量、结构以及表达特征进行分析,为研究ERF转录因子在黄瓜雌花分化与发育中的作用提供数据支持。【方法】根据已报道的拟南芥ERF,利用黄瓜基因组数据库中9930_V2版本基因组进行BLAST比对,通过MEGA、MEME、TBtools、ExPASy等工具进行生物信息学分析。采用qRT-PCR方法检测不同性型黄瓜材料、雌花发育初期不同阶段中ERF基因家族成员的表达水平。采用酵母单杂交方法验证家族成员与乙烯响应元件GCC-box的互作。【结果】从黄瓜材料9930基因组中鉴定得到138个ERF基因家族成员,共分为10个亚族,编码氨基酸长度介于126-745。按照基因家族成员在染色体上的位置分布,将其命名为CsERF1-CsERF138。多序列比对和motif分析结果表明,黄瓜ERF基因家族均具有AP2/ERF结构域,其中4个成员具有B3结构域。表达分析结果显示,在不同性型材料中共有19个ERF家族成员差异表达,其中9个在FFMMAA基因型中高表达,10个在ffMMAA基因型中高表达。通过雌花芽发育初期ERF家族成员的表达趋势分析,发现31个ERF随子房发育表达上调,30个表达下调。初步证明CsERF9和CsERF31具有结合GCC-box元件的功能。【结论】从黄瓜基因组中鉴定出138个ERF基因家族成员,均拥有1个或多个AP2/ERF结构域;其中部分成员在不同性型材料中差异表达,并可能参与雌花分化初期的基因表达调控;部分成员具有结合保守元件GCC-box调控下游基因表达的功能。 展开更多
关键词 黄瓜 乙烯信号 雌花发育 ERF基因 性别决定
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黄瓜黄叶基因YL的精细定位及候选基因预测 被引量:1
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作者 潘明 熊良荣 +5 位作者 张克岩 潘健 何欢乐 潘俊松 蔡润 王刚 《上海农业学报》 2021年第4期7-12,共6页
以黄瓜自交系WD_(1)为材料,采用甲基磺酸乙酯(EMS)诱变方式获得了一个稳定遗传的黄叶突变体yl;以黄叶突变体yl为父本、黄瓜自交系S52为母本,构建F_(2)群体,并对黄叶突变体yl、S52、F_(1)和277株F_(2)群体的叶色性状进行调查和遗传分析... 以黄瓜自交系WD_(1)为材料,采用甲基磺酸乙酯(EMS)诱变方式获得了一个稳定遗传的黄叶突变体yl;以黄叶突变体yl为父本、黄瓜自交系S52为母本,构建F_(2)群体,并对黄叶突变体yl、S52、F_(1)和277株F_(2)群体的叶色性状进行调查和遗传分析。结果表明:该突变体受一个隐性核基因控制,且绿色叶对黄色叶为完全显性。利用黄瓜7条染色体上的235对SSR引物对F_(2)群体的野生型与突变体DNA池进行混合分组分析法(BSA)分析,筛选得到2个DNA池间多态性标记5对,初步将该基因定位在黄瓜4号染色体分子标记SSR15682和SSR05415之间。通过进一步开发和筛选亲本间多态性分子标记,利用277株F_(2)群体将YL基因定位于黄瓜4号染色体上的分子标记In Del4-9和In Del4-10之间,物理距离为936.39 kb。利用20株黄化苗DNA混池基因组重测序数据和课题组已有的黄瓜自交系WD_(1)、S52重测序数据以及黄瓜9930基因组数据,对定位区间内基因进行序列分析,推测Csa4G297530为候选基因。 展开更多
关键词 黄瓜 黄叶基因YL SSR标记 基因定位
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黄瓜果瘤石蜡切片制片技术 被引量:8
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作者 高东菊 鲍文敏 +2 位作者 陈岳 潘俊松 张微微 《分子植物育种》 CAS CSCD 北大核心 2020年第21期7143-7148,共6页
果瘤是黄瓜(Cucumis sativus L.)果实重要外观品质性状之一,与黄瓜的经济价值密切相关。为了获得黄瓜果实果瘤石蜡切片制作方法,研究其性状形态建成的细胞学机制,本研究以黄瓜有果瘤品种S52和无果瘤品种S42 (大刺)/S06 (小刺)为材料,在... 果瘤是黄瓜(Cucumis sativus L.)果实重要外观品质性状之一,与黄瓜的经济价值密切相关。为了获得黄瓜果实果瘤石蜡切片制作方法,研究其性状形态建成的细胞学机制,本研究以黄瓜有果瘤品种S52和无果瘤品种S42 (大刺)/S06 (小刺)为材料,在传统石蜡切片方法的基础上,对脱水、染色、脱蜡等重要环节进行改良。结果表明:脱水时增加乙醇浓度梯度,可缩短每级处理时间至30 min;染色用埃氏苏木精(Ehrlich’s Hematoxylin)整染法染色3 d,便于后续操作;最优切片厚度为8μm;脱蜡时经两次纯二甲苯后可显微镜检精选,缩短获得高质量切片的时间。通过优化的制片方法可获得切片组织完整,结构清晰的高质量切片,是观察果瘤解剖学结构的有效方法。本研究为黄瓜果瘤切片技术提供一套完整、高效的操作步骤,为黄瓜其他器官及结构相似性状的解剖学研究提供技术参考。 展开更多
关键词 黄瓜(Cucumis sativus L.) 解剖学 石蜡切片 显微观察
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Construction of a cucumber genetic linkage map with SRAP markers and location of the genes for lateral branch traits 被引量:24
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作者 WANG Gang pan junsong +3 位作者 LI Xiaozun HE Huanle WU Aizhong CAI Run 《Science China(Life Sciences)》 SCIE CAS 2005年第3期213-220,共8页
Using SRAP(sequence-related amplified polymorphism)markers a genetic linkage map of cucumber was constructed with a population consisting of 138 F_(2) individuals derived from a cross of the two cucumber lines,S06 and... Using SRAP(sequence-related amplified polymorphism)markers a genetic linkage map of cucumber was constructed with a population consisting of 138 F_(2) individuals derived from a cross of the two cucumber lines,S06 and S52.In the survey of parental polymorphisms with 182 primer combinations,64 polymorphism-revealing primer pairs were screened out,which generated totally 108 polymorphic bands with an average of 1.7 bands per primer pair and at most 6 bands from one primer pair.The constructed molecular linkage map included 92 loci,distributed in seven linkage groups and spanning 1164.2 cM in length with an average genetic distance of 12.6 cM between two neighboring loci.Based on this linkage map,the quantitative trait loci(QTL)for the lateral branch number(lbn)and the lateral branch average length(lbl)in cucumber were identified by QTLMapper1.6.A major QTL lbn1 located between ME11SA4B and ME5EM5 in LG2 could explain 10.63%of the total variation with its positively effecting allele from S06.A major QTL lbl1 located between DC1OD3 and DC1EM14 in LG2 could account for 10.38%of the total variation with its positively effecting allele from S_(06). 展开更多
关键词 CUCUMBER SRAP(sequence-related amplified polymorphism) molecular linkage map lateral branch gene quan-titative trait loci(QTL).
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Quantitative trait locus analysis of lateral branch-related traits in cucumber(Cucumis sativus L.)using recombinant inbred lines 被引量:5
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作者 JIANG Su YUAN XiaoJun +2 位作者 pan junsong HE HuanLe CAI Run 《Science China(Life Sciences)》 SCIE CAS 2008年第9期833-841,共9页
A group of 224 recombinant inbred lines (RILs) was derived from a narrow cross between 2 cucumber (Cucumis sativus L.) lines, namely, S94 (Northern China type with weak lateral branch growth potential and early latera... A group of 224 recombinant inbred lines (RILs) was derived from a narrow cross between 2 cucumber (Cucumis sativus L.) lines, namely, S94 (Northern China type with weak lateral branch growth potential and early lateral branch sprouting time) and S06 (Northern European type with strong lateral branch growth potential and late lateral branch sprouting time). These lines were then used for investigating lateral branch-related traits. A total of 36 quantitative trait loci (QTLs) were detected for the following 4 lateral branch-related traits: lateral branch average length (LBAL), lateral branch total length (LBTL), lateral branch number (LBN), and first lateral branch node (FLBN). Further, each QTL explained 3.1% (lbtl2.1, spring) to 32.3% (lbn2.3, spring) of the observed phenotypic variance. Eleven QTLs (lbal1.1, lbtl1.1, lbn1.2, flbn1.2, etc.) for different traits were found to be clustered on the e23m18d-ME23EM6c section (7.4 cM) of linkage group (LG) 1; further, 15 QTLs (lbal2.1, lbtl2.1, lbn2.1, flbn2.1, etc.) were found to be clustered on the S94A1-ME4SA4a section (13.9 cM) of LG2. Twenty-one QTLs explained more than 10% of the phenotypic variance. Moreover, lbtl1.3 (autumn, 26.2%, logarithm of odds (LOD) = 17.4; spring, 26.9%, LOD = 17.9) had stable position and contribution in both seasons. Several se-quence-anchor markers (CMBR40, F, CS30, S94A1, CSWTA11B, etc.) were closely linked with some QTLs for LBAL, LBTL, LBN, and FLBN, which can be used for the marker-assisted selection to improve the plant architecture in cucumber breeding. 展开更多
关键词 Cucumis sativus L. lateral branching recombinant inbred lines quantitative trait loci
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Efficient Transposition of the Retrotransposon Tnt1 in Cucumber(Cucumis sativus L.) 被引量:1
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作者 ZHANG Qi DU Hui +7 位作者 LV Duo XIAO Tingting pan Jian HE Huanle WANG Gang CAI Run WENG Yiqun pan junsong 《Horticultural Plant Journal》 SCIE 2018年第3期111-116,共6页
Tnt1 is an active retrotransposon originally identified in tobacco(Nicotiana tabacum L.)(Grandbastien et al.,1989),but its transposition activity could be activated through tissue culture in other plant species.The in... Tnt1 is an active retrotransposon originally identified in tobacco(Nicotiana tabacum L.)(Grandbastien et al.,1989),but its transposition activity could be activated through tissue culture in other plant species.The insertions are stable and inheritable in the progeny,which has made it a valuable and versatile tool for developing insertional mutagenesis libraries in several plant species.Here,we explored its utility for mutagenesis in cucumber(Cucumis sativus L.).T_3 Tnt1 transgenic cucumber plants were subjected to tissue culture to regenerate self-pollinated progeny.With PCR and analyses and Southern hybridization,we found regenerated plants maintained the original Tnt1 insertion and created new insertions suggesting characteristic re-transposition activity of Tnt1 during this process.Using genome walking,some flanking sequences of Tnt1 insertions were recovered in regenerated plants.The results demonstrated that Tnt1 could be stably inherited and re-transposable during tissue culture in cucumber and that it is feasible to use for developing an insertional mutagenesis library for cucumber. 展开更多
关键词 CUCUMBER Tnt1 RETROTRANSPOSON tissue culture mutagenesis library
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Reporter-based screen for Arabidopsis mutants compromised in nonhost resistance
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作者 CHEN HuaMin pan junsong +2 位作者 ZHAO XiuXiang ZHOU JianMin CAI Run 《Chinese Science Bulletin》 SCIE EI CAS 2008年第7期1027-1034,共8页
Plants are exposed to many potentially pathogenic microbes in the environment, but each species is only susceptible to a limited number of pathogens. The broad resistance is referred to as nonhost re-sistance. To date... Plants are exposed to many potentially pathogenic microbes in the environment, but each species is only susceptible to a limited number of pathogens. The broad resistance is referred to as nonhost re-sistance. To date, little is known about the underlying mechanism of nonhost resistance and the sig-naling transduction process. Here we describe a simple method for isolating Arabidopsis nonhost re-sistance mutants against a nonadapted bacterial pathogen. A RAP2.6 promoter-driven LUC reporter system was developed to replace the tedious bacterial growth assay during the primary screening. The RAP2.6-LUC reporter gene is normally induced by the virulent bacterium Pseudomonas syringae pv tomato but not the nonadapted bacterium P. syringae pv phaseolicola. By using this method we iso-lated 4 mutants displaying strong reporter activity in response to P. syringae pv phaseolicola, which were characterized in some details. ebs1, ebs2, ebs3, and ebs4 (enhanced bacterial susceptibility) were compromised in resistance against P. syringae pv phaseolicola and/or P. syringae pv tomato. In addi-tion, ebs4 showed enhanced hypersensitive response to the incompatible bacterium P. syringae pv tomato (avrB). These results demonstrated that the method is suited for large scale screening for nonhost resistance mutants. 展开更多
关键词 突变体 抗寄生植物 电阻 基因
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