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ISTR在部分柿属植物种质鉴定和亲缘关系分析中的应用 总被引：6，自引：1，他引：5
利用反向序列标签重复技术( inverse sequence-tagged repeat, ISTR) , 对柿属7个种, 包括柿(Diospyros kaki Thunb. ) 、君迁子(D. lotus L. ) 、浙江柿(D. glaucifolia Metc. ) 、油柿(D. oleifera Cheng. ) 、金枣柿(D. sp. ) 、老鸦柿(D. rhombifolia Hemsl. ) 和美洲柿(D. virginiana L. ) 共32个基因型进行了种质鉴定和亲缘关系研究。结果表明: ISTR可区分供试柿属植物中的30份; ISTR能够很好地适用于柿属植物亲缘关系分析; 供试的中国与日本原产柿种质分别聚类; 新发现的中国甜柿变异类型与日本甜柿的亲缘关系较远且存在较丰富的遗传变异, 可能是潜在的育种资源。ISTR标记可在柿属植物种质资源鉴定和亲缘关系分析中更广泛地应用。 相似文献
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基于SRAP的部分柿砧木遗传多样性分析 总被引：2，自引：0，他引：2
《中国南方果树》2016,(4)
柿Diospyros kaki Thunb.常见的砧木有君迁子D.lotus L.、浙江柿D.glaucifolia Met.、油柿D.oleifera Cheng及本砧,其遗传关系尚不完全清楚。以21份柿属砧木资源和5份栽培柿品种为试材,利用SRAP分子标记技术分析供试材料之间的亲缘关系。SRAP扩增结果表明,(1)筛选出9对多态性较好的引物,共扩增出113条清晰、可重复谱带,其中多态性带111条,多态性比例分别为98.23%;(2)UPGMA聚类分析结果显示两份本砧种质"小果甜柿"和"牛眼柿"与5份柿栽培品种聚类较近,台湾乌柿与浙江柿、油柿及浙江光叶柿聚类成组,而与其他君迁子类型的遗传关系相对较远。以上结果表明,柿砧木遗传多样性丰富,有望进一步从中挖掘新的种质类型。 相似文献
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《果树学报》2017,(6)
【目的】从分子水平探究南丰柑橘种质间的亲缘关系。【方法】应用SSR技术对28份南丰柑橘种质进行基因组的多态性分析。【结果】从91对引物中筛选得到13对SSR引物,可区分全部供试材料。共扩增得到64个等位基因,平均每个位点4.92个等位基因。以遗传相似系数0.18为界,金柑属金柑单独聚为1类,柑橘属27份供试样品聚为1类。以相似系数0.59为阈值,27份柑橘属供试种质分为5个类群,其中南丰蜜橘品种群(包含小果系、大果系、桂花蒂系、早熟系)所有20份供试种质与‘蜜广’聚为一类,‘小叶广’‘火广’‘火橘’聚为一类,‘红广’‘红橘’‘本地早橘’各为一类。【结论】南丰广橘品种群中‘蜜广’与南丰蜜橘品种群有较近的亲缘关系,而‘红广’与亲本南丰蜜橘和‘红橘’的亲缘关系均较远。‘小叶广’‘火广’和‘火橘’亲缘关系较近。 相似文献
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野生毛花猕猴桃果实表型性状及SSR遗传多样性分析 总被引：2，自引：0，他引：2
以江西省武功山境内的70份野生毛花猕猴桃种质资源为试材,对其果实表型性状、SSR遗传多样性及其亲缘关系进行分析和评价。根据UPOV（国际植物新品种保护联盟）公布的猕猴桃属品种测定标准对供试材料的果实表型性状进行观测。参照猕猴桃遗传连锁图谱,选用分布于中华猕猴桃基因组中的70对SSR引物对供试材料进行多态性分析。结果表明,在70对引物中,21对引物成功扩增出多态性片段。随机采集的70份野生毛花猕猴桃种质资源中,其果实表型性状和DNA分子水平均存在丰富的遗传多样性。基于UPGMA聚类分析将供试的野生毛花猕猴桃资源分为果实圆形和椭圆形混合组、果实椭圆形组以及果实圆柱形组。21对多态性高的SSR引物共检测出127个等位变异位点,变异范围在2 ~ 12之间,平均每对SSR引物可检测到6.04个等位位点。遗传相似系数（GS）变异范围为0.5306 ~ 0.9252。GS值在0.65水平上UPGMA聚类分析可将供试的野生毛花猕猴桃种质资源划分成Ⅰ、Ⅱ和 Ⅲ 共3个组,这与果实表型性状分析的结果基本一致。这些遗传变异丰富的种质资源可为猕猴桃育种提供有价值的材料。 相似文献
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金柑属及其近缘属植物亲缘关系的SSR分析 总被引：3，自引：1，他引：3
用SSR标记分析了金柑属(Fortunella)及柑橘属(Citrus)植物的亲缘关系。选取的22对柑橘属SSR引物中,有14对能在所有材料中扩增出带纹,表明柑橘属SSR引物在金柑属植物上具有一定的通用性。在18个材料中扩增得到275个位点,平均每对引物扩增出19.7个位点。用NTSYS-PC软件进行分析,结果表明,金柑属植物与宽皮柑橘的亲缘关系很近;SSR聚类结果支持长寿金柑种的地位;支持宁波金弹、融安金弹、蓝山金柑均为金弹的栽培种的结论。为金柑属种质的保存、育种和分类提供了分子水平上的依据。 相似文献
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不同生态类型西瓜种质资源遗传多样性的SSR分析 总被引：2，自引：0，他引：2
采用SSR分子标记技术对96份不同生态型西瓜种质资源的遗传多样性进行研究。从398对引物中筛选出38对扩增条带清晰、多态性高的引物分析供试材料,共得到7043条清晰可辨条带,其中多态性条带826条,占11.7%。平均每对引物对96份材料扩增出185.34条带,其中21.74条具有多态性。96份材料间的相似系数为0.42～0.99。聚类分析结果表明,野生西瓜与栽培西瓜的亲缘关系较远。在栽培品种内华北生态型、华南生态型和西北生态型西瓜的亲缘关系较近,说明我国西瓜种质资源同源性较高,遗传基础狭窄,有必要引入更多种质资源以拓宽西瓜育种背景。 相似文献
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利用苹果SSR引物分析山楂属植物遗传关系 总被引：2，自引：0，他引：2
SSR引物在不同物种间具有通用性,从141对苹果属(Malus spp.)SSR引物中筛选出10对适合于山楂属(Crataegus spp.)植物的SSR引物,并对8个种37份山楂种质资源的遗传关系进行了分析。10对SSR引物共检测到91个多态性谱带,每个位点的等位基因数为3～13个,平均为9.1个。位点杂合度为0.432～0.790,平均为0.688。10对SSR引物可以将20份山楂资源区分开,17份不能区分的资源分为3组,第1组为3个伏山楂品种,第2组和第3组分别包括大果山楂的2个和12个品种。基于SSR标记构建的聚类树状图将供试37份山楂资源分成2个类群,第1类群包括6个山楂野生种,第2类群包括供试的所有伏山楂、山楂和大果山楂资源。该聚类结果与传统形态学分类一致。 相似文献
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LIAO Shi-yue CHEN Bai-li HU Kun-hua RAO Pei-si HE Yao LI Ming-tao CHEN Min-hu ZENG Zhi-rong 《园艺学报》2015,31(5):894-899
AIM: To identify the serum proteins that might serve as biomarkers for predicting mucosal healing (MH) in the patients with Crohn's disease (CD) treated with infliximab (IFX). METHODS: We collected serum samples before treatment (0 week, group A) and 14 weeks after treatment (group B) from 7 CD patients with IFX treatment who had achieved MH, as well as the serum samples from 7 CD patients who had not achieved MH (0 week, group C; 14 weeks, group D). Two-dimensional fluorescence difference gel electrophoresis was applied to analyze and compare the results of serum profiles between groups A and B, C and D, A and C, B and D. Matrix-assisted laser desorption/ionization time-of-flight tandem mass spectrometry and bioinformatics tools were utilized to preliminarily identify and figure out the differentially expressed proteins. RESULTS: (1) In total, there were 44 differentially expressed spots, 36, 3, 10 and 31 differentially expressed spots were detected while comparing A with B, C with D, A with C and B with D, respectively. (2) Among those spots, 17, 2, 2 and 15 proteins were identified, respectively. In total, there were 19 differentially expressed proteins, including apolipoprotein E, apolipoprotein A-I, complement factor H, and so on. (3) Protein functional association networks were carried out based on STRING database. CONCLUSION: The serum protein profiles obviously change after IFX treatment in MH CD patients, and the serum protein profiles of MH patients are different from that of non-MH patients after IFX treatment. The 19 proteins we identified may serve as potential biomarkers for predicting MH in CD patients with IFX treatment. 相似文献
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CAO Kai-yuan FU Yong-shui XU Lin YUAN Guang-qing HUANG Xiao-rong DAI Shu-qin TANG Yong-ping 《园艺学报》2003,19(10):1349-1352
AIM:To amplify from leader peptide region and obtain human monoclonal anti-D variable region gene with high specificity and affinity, and analyze the nucleotide and deduced amino acid sequences.METHODS:The total RNA was extracted from an Epstein-Barr-virus-transformed cell line secreting monoclonal anti- (rhesus D) antibody. The leader region primers containing a ribosome recognition site were designed. By using PCR method, the cDNA of human anti-(rhesus D) antibody (IgM κ) variable region gene was amplified. Cloning and subsequent sequence analysis of the variable region gene was performed. The deduced amino acid sequence was also compared and analyzed with previously published sequences.RESULTS:A band of approximate 440 and 410 base pairs were amplified using heavy chain primers and light chain primers, respectively. Sequence analysis indicated that the deduced amino acid sequence was in agreement with the characterization of the amino acid present in the human Ig variable region. CONCLUSION:The cloning and sequencing of a human anti- (Rhesus D) antibody variable region cDNA will make benefits for production of recombinant anti-(Rhesus D) antibody and prevention of Rh haemolytic disease in newborns. 相似文献
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《Scientia Horticulturae》2005,105(2):283-290
Randomly amplified polymorphic DNA (RAPD) markers were used to identify cultivars of persimmon (Diospyros kaki Thunb.) and to estimate the phenetic relationships between Diospyros species. Long random primers (15 and 20 bases) were used to increase the effectiveness of recognizing polymorphism. Twenty-five of 34 (74%) long random primers amplified polymorphic bands of 25 persimmon cultivars, indicating that the effectiveness improved compared with RAPD analysis using 10-base primers. The 25 primers amplified a total of 444 polymorphic bands, which distinguished all 25 cultivars. RAPD markers (133) clarified the phenetic relationship between the six species and subspecies of Diospyros: D. lotus, D. lotus subsp. glabbra and D. taitoensis formed one group (lotus group), and persimmon was related in order of closeness to the lotus group, D. oleifera, and D. rhombifolia. 相似文献
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几种菊属植物及其种间杂种减数分裂行为观察 总被引：1，自引：0，他引：1
对菊花脑〔D. nankingense ( 2x) 〕、甘菊〔D. lavandulifilium ( 2x) 〕、四倍体菊花脑〔D.nankingense (4x) 〕、‘滁菊’〔D. morifolium ‘Chuju’ (6x) 〕、‘黄英’〔D. morifolium ‘Huangying’ (6x) 〕及其部分种间杂种减数分裂过程染色体行为进行研究。结果表明: 二倍体的菊花脑和甘菊减数分裂中期Ⅰ(MⅠ) 每个花粉母细胞( PMC) 平均染色体配对构型分别为0.83Ⅰ + 8.58Ⅱ和1.50Ⅰ + 8.25Ⅱ; 四倍体菊花脑PMCMⅠ染色体配对构型为2.64Ⅰ + 13.35Ⅱ + 1.03Ⅲ + 0.93Ⅳ; 六倍体‘滁菊’和‘黄英’PMCMⅠ染色体配对构型分别为0.48Ⅰ + 26.09Ⅱ + 0.33Ⅳ和1.09Ⅰ + 25.18Ⅱ + 0.18Ⅲ + 0.50Ⅳ, 是两个已经二倍体化的异源六倍体。菊花脑×甘菊的杂种F1 PMCMⅠ染色体配对构型为1.61Ⅰ + 8.19Ⅱ; 四倍体菊花脑×菊花脑、菊花脑×四倍体菊花脑杂种F1 PMCMⅠ染色体配对构型分别为3.42Ⅰ + 8.34Ⅱ + 1.53Ⅲ +0.58Ⅳ和3.62Ⅰ + 8.31Ⅱ + 1.50 Ⅲ + 0.56Ⅳ; 菊花脑ב黄英’、‘黄英’ ×菊花脑和甘菊ב黄英’、‘黄英’ ×甘菊正反交杂种F1 PMCMⅠ染色体配对构型分别为0.30Ⅰ + 16.45Ⅱ + 0.70Ⅳ、0.29Ⅰ + 16.07Ⅱ + 0.89Ⅳ、0.63Ⅰ + 16.32Ⅱ + 0.68Ⅳ和0.47Ⅰ + 16.38Ⅱ + 0.65Ⅳ + 0.03Ⅵ; 四倍体菊花脑ב滁菊’杂种F1 PMCMⅠ染色体配对构型为3.59Ⅰ + 18.03Ⅱ + 0.98Ⅲ + 0.52Ⅳ + 0.07Ⅴ。由减数分裂行为可以看出菊花脑和甘菊亲缘关系较近, 菊花脑和甘菊及其近缘种可能是栽培菊花的1个染色体组供体; 菊属3个染色体组间分化程度较低, 彼此亲缘关系较近, 且部分染色体可能存在易位等结构变异, 或菊属内广泛存在促进配对的基因。 相似文献
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适于AFLP分析用的桃成熟叶片DNA提取方法 总被引：10，自引：2，他引：8
以多个野生桃秋季成熟叶片为材料,采用改进CTAB法对其基因组总DNA的提取进行了研究,并与其相应幼叶DNA的提取效果进行了比较分析。结果表明,从野生桃成熟叶片提取的DNA除产量低于幼叶外,DNA的纯度和完整性都较好,D260nm/D280nm的比值均为1.8～2.0,无降解现象,RNA去除干净,能被限制性内切酶完全消化;其AFLP分析(引物EcoRI-TA/MseI-CTT)条带清晰,多态性好,说明此方法提取的野生桃成熟叶片基因组总DNA完全适于AFLP分析。 相似文献
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放线菌‘D74’对魔芋的防病促生作用 总被引：2，自引：0，他引：2
根据供试放线菌‘D74’菌株的菌落形态特征及16S rRNA基因序列分析,确定其为娄彻氏链霉菌（Streptomyces rochei）。采用皿内拮抗试验研究表明,‘D74’对魔芋软腐病菌有较强的拮抗作用,拮抗圈直径为11.0 ~ 18.3 mm。用‘D74’无菌发酵滤液10倍稀释液处理甜瓜种子,其发芽率、简明活力指数、胚轴和胚根长度分别较对照增加34.9%、82.4%、66.4%和31.5%（P < 0.05）。盆栽条件下,拌土单接菌剂D74和菌剂与病原菌混接处理对收获期魔芋的相对防效分别为100%和17.0%。菌剂D74在单接和混接条件下能提高盆栽魔芋叶片光合作用、叶片绿色度（SPAD）、生物量及产量,亦能改善魔芋球茎品质。田间小区试验条件下,菌剂D74穴施,魔芋叶片光合指标、生物量及产量较对照增加。研究表明,放线菌‘D74’对魔芋软腐病菌有较强抑制作用,‘D74’活菌制剂对魔芋有良好的防病促生效果,对魔芋品质也有显著的改善作用。 相似文献
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Trees provide important health, ecosystem, and aesthetic services in urban areas, but they are unevenly distributed. Some neighborhoods have abundant tree canopy and others nearly none. We analyzed how neighborhood characteristics and changes in income over time related to the distribution of urban tree canopy in Washington, D.C. and Baltimore, MD. We used stepwise multiple regression analysis to identify strong predictors of UTC, from variables found in neighborhoods with different patterns of wealth-stability over time. We then built spatial lag models to predict variation in UTC cover, using the results of a Principal Component Analysis of the socioeconomic, demographic, and housing characteristics of the two cities. We found that: (1) stable-wealthy neighborhoods were more likely to have more, and more consistent, tree canopy cover than other neighborhood types; (2) decreases and increases in income were negatively associated with UTC in Washington, D.C. but not Baltimore, where income stability in both wealthy and impoverished neighborhoods was a significant predictor of UTC; and (3) the association of high socioeconomic status with UTC coverage varied between the two cities. 相似文献
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采用室内苗期人工喷雾接种鉴定方法，对我国现行推广的222 个黄瓜品种和52 份黄瓜种质
资源进行了细菌性角斑病的人工接种抗病性鉴定。结果表明，222 个黄瓜栽培品种中，3 个品种D07194
（金满田黄瓜）、D07207（绿丰园8 号青瓜）和D07251（新津春4）表现为高抗，占鉴定品种总数的1.4%；
56 个品种表现为抗病，125 个品种表现为中抗，30 个品种表现为感病，8 个品种表现为高感。从52 份黄
瓜种质资源中筛选出13 份高抗细菌性角斑病的材料，分别为D0618、C05-056、F02-07.04、C05-36、
D0327、C04-02、D0463、D0435-3、D0328、D0462、D2009-1、129 和北进，未发现对细菌性角斑病免
疫的材料。 相似文献