共查询到19条相似文献，搜索用时 140 毫秒
1.
选择243个多态性SSR标记, 分析轮回亲本Harosoy及23个携带大豆4个不同成熟期基因的近等基因系(near isogenic line, NIL), 共检测出导入片段266个, 平均每个NIL有导入片段11.6个。其中由携带E1基因的NIL检测出导入片段150个, 主要集中在第6号染色体;由携带E2、e3和E5基因的NIL各检测出导入片段55个、49个和73个, 分别集中在第20号、第12号和第20号染色体, 根据NIL的SSR分析结果聚类,具有相同熟期基因的NILs趋向聚在一起。通过对导入片段进行分析, 推测E1基因与第6号染色体的satt643~sat_312区间及第11号染色体的sat_095位点相关, E2和E5基因与第20号染色体的satt587~satt496区间相关, e3与第12号染色体的satt317~satt181区间相关。结果表明, 利用近等基因系不仅验证了已知E1基因所在的染色体区间, 发现了一个新的标记位点与E1相关, 还鉴定出与E2、e3和E5基因相关的标记, 明确了轮回亲本中成熟期基因所在导入片段大小及其位置, 为成熟期基因的精细定位和克隆提供了信息。 相似文献
2.
大豆抗胞囊线虫4号生理小种新品系SSR标记分析 总被引：2，自引：1，他引：1
培育抗病品种是大豆胞囊线虫(Soybean Cyst Nematode, SCN)病经济、有效的防治方法。利用130个SSR标记对26份抗SCN 4号生理小种(SCN 4)新品系和15份感病品系进行基因型分析, 旨在明确抗病品系与SCN 4抗性相关联的SSR标记, 提出抗性基因分子标记鉴定方法, 以提高抗病品系在育种中的利用效率。研究表明, Hartwig与晋品系亲本具有不同的SCN 4抗病基因, 其遗传相似系数为0.362。与抗性显著关联的22个SSR位点分布在11个连锁群(LG), 推测LG D1b上分布的SSR标记附近存在1个新的SCN 4抗病基因; 而Satt684、Sat_230、Sat_222、Satt615和Satt231位点, 来自亲本Hartwig等位基因与抗病相关联, 而来自晋品系的等位基因与感病相关联, 在Sat_400、Satt329和Satt557等其他17个SSR位点, 来自Hartwig等位基因与感病相关联, 来自晋品系亲本的等位基因与抗病相关联。利用非连锁不平衡SSR标记Satt684和Sat_400可对供试品系进行有效的抗性辅助选择。 相似文献
3.
利用与大豆灰斑病抗性基因连锁的SSR标记构建品种(系)的分子身份证 总被引：2，自引：0，他引：2
以黑龙江省29个大豆育种单位的103份已鉴定大豆灰斑病3个生理小种抗性的大豆品种(系)为材料,选择与大豆灰斑病抗病基因连锁的19个SSR标记检测,获得等位变异数86个,每个标记检测到的等位变异数分布在2~6个之间,平均为4.42个。应用遗传统计软件(genetics statistics 3.0)分析表明, 标记的多样性指数介于0.198~0.751之间,平均多样性指数为0.606。品种(系)特异指数差异较大,介于46.592~481.541之间,平均为87.415。根据标记的等位基因数,使用ID Analysis 1.0软件分析表明,利用与大豆抗灰斑病基因连锁的7个SSR标记(Satt565、Satt547、Satt431、Sct_186、SOYGPATR、Satt244、Sat_151)就能有效区分各品种(系),因此利用这7个标记构建了供试品种(系)的分子身份证。 相似文献
4.
不同光周期条件下大豆生育期主基因的效应 总被引：4，自引：0，他引：4
以大豆生育期近等基因系为材料, 比较12 h短日照(SD)及16 h长日照(LD)条件下E1/e1、E2/e2、E3/e3、E4/e4、E5/e5、E7/e7等6对生育期相关主基因的效应。结果表明, 在大多数生育期基因型中, 显性位点延迟大豆的开花期和成熟期, 隐性位点提早开花期和成熟期。同一基因在不同遗传背景下的效应值不同, 显性位点可增强其他基因的效应, 说明各基因间存在互作。生育期基因的效应受光周期影响很大, 长日照可增强大豆生育期相关基因的效应, 短日照则相反。此外, 光周期对基因效应的影响因发育阶段不同而变化, 其中, E1基因在大豆营养生长阶段、E4基因在生殖生长阶段受光周期影响较大, 而E3基因在营养生长和生殖发育阶段均受光周期的严格调控。不同光照条件下生育期基因效应的分析结果, 可为不同生态区大豆品种生育期性状的定量设计提供依据。 相似文献
5.
选用来源于中国黄淮和美国的熟期组II~IV的8个大豆品种, 按Griffing方法II设计, 配成28个双列杂交组合, 包括8个亲本共计36份材料。选用300个SSR标记, 对8个大豆亲本进行全基因组扫描, 利用基于回归的单标记分析法, 对大豆杂种产量和分子标记进行相关性分析, 估计等位变异的效应和位点的基因型值, 剖析杂种组合的等位变异。结果表明, 300个SSR标记中有38个与杂种产量显著相关, 分布于17个连锁群上, 其中D1a和M等连锁群上较多, 有8个位于连锁定位的QTL区段内(±5 cM)。单个位点可分别解释杂种产量表型变异的11.95%~30.20%。杂种的位点构成中包括有增效显性杂合位点、增效加性纯合位点、减效加性纯合位点和减效显性杂合位点4部分, 其相对重要性依次递减。从38个显著相关的SSR标记位点中, 遴选出Satt449、Satt233和Satt631等9个优异标记基因位点, Satt449~A311、Satt233~A217和Satt631~A152等9个优异等位变异, 以及Satt449~A291/311、Satt233~A202/207和Satt631~A152/180等9个优异杂合基因型位点。这些结果为理解杂种优势的遗传构成和大豆杂种产量聚合育种提供了依据。 相似文献
6.
为了鉴定北方春大豆组国家区域试验大豆品种的纯度、构建参试大豆品种的分子ID及品种间遗传关系分析,从而有效地指导中国北方春大豆新品种的选育和推广。通过对参加2012年北方春大豆国家区试的94份大豆材料用分布在大豆基因组8个连锁群的13对SSR标记进行分析。结果表明：94份参试大豆品种纯度分布范围为53.85%~100%,平均纯度为99.02%;利用Satt231、Satt288、Satt160、Satt193和Sat-092这5对引物可以将94份参试大豆品种区分开,并获得唯一的分子ID;94个参试大豆品种间遗传相似系数为0~0.846,平均相似系数为0.2783,说明参试大豆品种间遗传差异性较大。通过SSR标记分析,可以有效地鉴定参试大豆品种的纯度、建立参试大豆品种的分子ID及实现品种间遗传关系分析。 相似文献
7.
与大豆SMV3号株系抗性相关的分子标记的鉴定 总被引：5，自引：0，他引：5
对大豆花叶病毒SMV抗性的遗传研究一直是大豆抗病遗传研究的热点之一。本研究以哈91R3-301×黑农41组合构建了遗传群体,其F2分离单株的SSR标记基因型基本符合1:2:1的比例,说明这个群体没有偏分离。根据F3株系的病情指数分布推测SMV3的F2成株抗性似乎由多基因控制。根据SSR分子标记的基因型和F2:3株系对SMV3抗病性表型结果连锁分析,推测Satt296是与大豆花叶病毒(SMV)3号株系抗性主基因连锁的分子标记,应用Joinmap作图软件将该标记定位在D1b连锁群上,这一结果与部分文献报道的研究结果一致。本研究获得的与抗性基因连锁的分子标记在其他的RIL群体中的验证得到了初步证实,推测定位在D1b连锁群上的抗性座位可能是控制SMV3的主基因之一,该标记可望应用于大豆抗SMV3的分子标记辅助选择。 相似文献
8.
黑龙江部分大豆品种分子ID的构建 总被引：14，自引：4，他引：14
以黑龙江13个育种单位6个积温带的83份大豆品种为材料, 选择分布在大豆基因组19个连锁群的43对SSR引物进行检测, 共检测出等位变异157个, 每个引物检测到的等位变异数变化范围为2~7个, 平均为3.65个。将聚丙烯酰胺凝胶电泳得到的谱带统计结果根据等位变异的片段大小数字化, 用自行编制的ID Analysis 1.0软件进行数据分析。结果表明, 仅需9对引物(Satt100、Sat_218、Satt514、Satt551、Satt380、Satt193、Satt191、Satt442、Sat_084)可将83份参试大豆品种完全区分开。构建了一套黑龙江省大豆品种的分子ID。 相似文献
9.
运用关联分析定位栽培大豆蛋白11S、7S组分的相关基因位点 总被引：1，自引：0，他引：1
大豆贮藏蛋白主要成分是7S和11S球蛋白,大豆贮藏蛋白组分及其亚基组成决定了蛋白质的品质和加工特性。本研究选用134对细胞核SSR标记,对166份栽培大豆微核心种质进行基因分型,运用一般线性回归(general linear model, GLM)和复合线性回归(mixed linear model, MLM)方法进行标记与性状的关联分析,定位大豆蛋白亚基的相关基因。结果表明,2年均检测到的且与蛋白亚基相关联的SSR位点有14个,以MLM方法检测到5个SSR位点(Sat_062、Satt583、Satt291、Satt234和Satt595)与蛋白亚基相关联;7S组分各亚基变异程度较大,是引起11S/7S变异的主要原因;表型变异较大的亚基可能因为相关基因进化中发生重组较多,LD衰减距离较小,导致检测到较少的相关位点。本研究结果对蛋白亚基相关性状的标记辅助选择育种有重要的利用价值。 相似文献
10.
通过发掘大豆资源中抗灰斑病1号生理小种的优异等位变异和载体材料,为开展抗灰斑病品种分子设计育种提供理论基础。以205份大豆资源构建的自然群体为试验材料,对其进行灰斑病1号生理小种的抗性鉴定;利用117对SSR标记进行全基因组扫描,分析群体的遗传多样性和群体结构,应用GLM和MLM程序对标记与大豆灰斑病抗性开展关联分析。结果表明：205份大豆资源对灰斑病1号生理小种抗性遗传变异系数为20.90%;2个模型共检测到与灰斑病1号生理小种抗性关联的位点7个,表型变异解释率在7.58%~16.06%;发掘到增效等位变异36个,其中效应值较大的等位变异为Satt244-230（26.16）、Satt142-154（21.94）和Satt244-186（20.19）,携带上述3个等位变异的载体材料均为野生资源,3个典型材料分别为12C8646、12C8670和12C6175;育成品种中具有最大增效值的等位变异为Satt142-189（8.94）,有7个品种携带该等位片段,均为黑龙江品种,典型载体材料为东农43。 上述信息可用于分子标记辅助选择育种和抗源筛选。 相似文献
11.
Myung Sik Kim Min Jung Park Woo Hyeun Jeong Ki Chul Nam Jong Il Chung 《Euphytica》2006,152(3):361-366
Soybean is a major source of protein meal in the world. Soybean kunitz trypsin inhibitor (SKTI) protein is a responsible for the inferior nutritional quality of unheated or incompletely heated soybean meal. The primary objective of this research was to identify DNA markers linked to the Ti locus controlling presence and absence of kunitz trypsin inhibitor protein. Two mapping populations were developed. Population 1 was derived from a cross between cultivar Jinpumkong2 (TiTi) and C242 (titi). Population 2 was made from a mating between cultivar Clark (TiTi) and C242. The F1 plants were grown in the greenhouse to produce F2 seeds. Each F2 seed from F1 plants was analyzed electrophoretically to determine the presence of the SKTI protein band. One-thousand RAPD primers, 342 AFLP primer sets, and 35 SSR primers were used to map Ti locus in population 1 and 2. The presence of SKTI protein was dominant to the lack of a SKTI protein and kunitz trypsin inhibit protein band was controlled by a single locus. Twelve DNA markers (4 RAPD, 4 AFLP, and 3 SSR) and Ti locus were found to be genetically linked in population 1 consisted with 94 F2 individual plants. Three SSR markers (Satt409, Satt228, and Satt429) were linked with Ti locus within 10 cM. Satt228 marker was tightly linked with Ti locus. Satt228 marker was tightly linked within 0–3.7 cM of the Ti locus and may be useful in a marker assisted selection program. 相似文献
12.
大豆灰斑病1号生理小种抗性基因的SSR标记 总被引：1，自引：0，他引：1
针对中国大豆灰斑病1号生理小种,以抗所有生理小种的品系东农40566为母本,以感所有生理小种的品种东农410为父本配制杂交组合,杂交得到F2代后连续自交3代得到F5代群体。该群体经人工接种灰斑病1号生理小种后,利用BSA法对500个SSR标记进行筛选,其中3个标记Satt565、SOYGPATR和Satt396在抗、感池间表现出稳定的多态性,并且在F2代个体中表现出抗性与多态性协同分离的趋势。3个标记与抗性基因的连锁顺序为Satt565—SOYGPATR—Hrcs1—Satt396,它们与抗性基因的连锁距离分别为12.7cM、6.5cM、14.7cM。推测抗大豆灰斑病1号生理小种的基因可能位于C1连锁群上。 相似文献
13.
Masayasu Saruta Yoshitake Takada Akio Kikuchi Tetsusya Yamada Kunihiko Komatsu Takashi Sayama Masao Ishimoto Akinori Okabe 《Breeding Science》2012,61(5):625-630
The peanut stunt virus (PSV) causes yield losses in soybean and reduced seed quality due to seed mottling. The objectives of this study were to determine the phenotypic reactions of soybean germplasms to inoculation with two PSV isolates (PSV-K, PSV-T), the inheritance of PSV resistance in soybean cultivars, and the locus of the PSV resistance gene. We investigated the PSV resistance of 132 soybean cultivars to both PSV isolates; of these, 73 cultivars exhibited resistance to both PSV isolates. Three resistant cultivars (Harosoy, Tsurunotamago 1 and Hyuga) were crossed with the susceptible cultivar Enrei. The crosses were evaluated in the F1, F2 and F2:3 generations for their reactions to inoculation with the two PSV isolates. In an allelism test, we crossed Harosoy and Tsurunotamago 1 with the resistant cultivar Hyuga. The results revealed that PSV resistance in these cultivars is controlled by a single dominant gene at the same locus. We have proposed Rpsv1, as the name of the resistance gene in Hyuga. We also constructed a linkage map using recombinant inbred lines between Hyuga × Enrei using 176 SSR markers. We mapped Rpsv1 near the Satt435 locus on soybean chromosome 7. 相似文献
14.
Weixian Liu Moon Young Kim Kyujung Van Suli Sun Suk-Ha Lee 《Journal of Crop Science and Biotechnology》2010,13(4):213-218
Flowering is an important stage in plant development and crucial for adaptation of plant species to different environments.
Two soybean mapping populations were used to identify quantitative trait loci (QTLs) for days to flowering (DF) and days to
maturity (DM) by genotyping simple sequence repeat (SSR) markers. Single-factor analysis of variance detected association
of phenotypic data with SSR markers in each population. DF QTLs were identified on four chromosomes (chrs.); two QTLs located
on chrs. 2 and 13 with Satt041 and Satt206 in the Jinpumkong 2 × SS2-2 population and other two DF QTLs were detected on chrs.
6 and 19 with Satt100 and Satt373 in the Iksannamulkong × SS2-2 population. The major QTLs associated with Satt100 explained
30.3% of maximum phenotypic variation. Especially, all DF QTLs included QTLs for DM, except Satt206 on chr. 13. Moreover,
two additional DM QTLs were mapped on chrs. 10 and 11 with Satt243 and Satt359, respectively. DF QTL on chr. 2 with Satt041
was the newly identified QTL only in the Jinpumkong 2 × SS2-2 population and explained 10.3% of the phenotypic variation.
The single locus of Satt100 on chr. 6 and Satt373 on chr. 19 were located on soybean genomic regions of the known flowering
gene loci E1 and E3, respectively. These population-specific QTLs (Satt100 and Satt373) are the major QTLs for flowering time, putatively, they
may be related to maturity QTLs with large effect. Additionally, these QTLs are valuable for marker-assisted approaches and
could be widely adopted by soybean breeders. 相似文献
15.
In this study, we report the mapping of the Rf locus in soybean by microsatellite simple sequence repeat (SSR) genetic markers. A cross was made between cytoplasmic male sterility (CMS) line JLCMS82A and restorer line JIHUI 1 based on the DNA polymorphisms revealed by 109 SSR markers. A F2 population derived from a single F1 plant containing 103 individuals was used for mapping the Rf locus. The Rf gene of JIHUI 1 gametophytically restores male fertility to JLCMS82A. Fertile and semi-fertile DNA bulks and parental DNAs were screened with 219 SSR markers, and Satt215 which was previously mapped to soybean LG J, was found linked to the Rf gene. Five additional polymorphic SSR markers from LG J were used for analysis and a regional linkage map around the Rf locus was established. SSR markers, Sctt011 and Satt547, flanked the Rf locus at 3.6 cM and 5.4 cM, respectively. The availability of these SSR markers will facilitate the selection of restorer lines in hybrid soybean breeding. 相似文献
16.
对22份“十五”攻关培育的创新种质和22份大豆育成品种进行了24个SSR标记的分析比较,目的是在分子水平上阐明创新种质的遗传结构特点,为拓宽我国大豆育成品种遗传基础及亲本选择提供理论依据。本研究在24个SSR位点共发现231个等位变异,其中15.8%（36个等位变异）为创新种质所特有,特别是在与大豆胞囊线虫紧密连锁的Satt309位点上验证了一个我国独有的等位变异。结合UPGMA和Model-based聚类结果,将创新种质和育成品种分为4组,第Ⅰ组由13份来自东北和山西的创新种质组成;第Ⅱ组由8份来自东北的育成品种组成;第Ⅲ组由8份来自黄淮海和南方的大豆种质组成,其中创新种质和育成品种各为4份;第Ⅳ组由4份育成品种组成,分别来自吉林、黑龙江、河南和山西。遗传多样性分析结果表明,利用国外种质和野生大豆创造的创新种质丰富了东北地区育成品种的遗传多样性。因此,应加强利用国外种质、我国栽培大豆地方品种和野生大豆等优异资源,在创造优异大豆新种质的同时,拓宽我国大豆的遗传基础。 相似文献
17.
Molecular mapping of a new gene for resistance to frogeye leaf spot of soya bean in 'Peking' 总被引：5，自引：0，他引：5
Amplified fragment length polymorphism (AFLP) and microsatellite (simple sequence repeat, SSR) techniques were used to map the _RGSpeking gene, which is resistant to most isolates of Cercospora sojina in the soya bean cultivar ‘Peking’. The mapping was conducted using a defined F2 population derived from the cross of ‘Peking’(resistant) בLee’(susceptible). Of 64 EcoRI and MseI primer combinations, 30 produced polymorphisms between the two parents. The F2 population, consisting of 116 individuals, was screened with the 30 AFLP primer pairs and three mapped SSR markers to detect markers possibly linked to RcsPeking. One AFLP marker amplified by primer pair E‐AAC/M‐CTA and one SSR marker Satt244 were identified to be linked to ResPeking. The gene was located within a 2.1‐cM interval between markers AACCTA178 and Satt244, 1.1 cM from Satt244 and 1.0 cM from AACCTA178. Since the SSR markers Satt244 and Satt431 have been mapped to molecular linkage group (LG) J of soya bean, the ResPeking resistance gene was putatively located on the LG J. This will provide soya bean breeders an opportunity to use these markers for marker‐assisted selection for frogeye leaf spot resistance in soya bean. 相似文献
18.
Molecular tagging of Asiatic soybean rust resistance in exotic genotype EC 241780 reveals complementation of two genes 
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下载免费PDF全文 Asian soybean rust (ASR) caused by Phakopsora pachyrhizi severely reduces seed yield in soybean. Molecular tagging of ASR resistance can help in the process of resistance breeding. In this study, an F2 population of cross (susceptible cultivar ‘NRC 7’ × resistant exotic genotype EC 241780) was used for bulked segregant analysis (BSA) with 25 SSR (simple sequence repeat) primers linked with six Rpp genes. Among them, five polymorphic SSR markers, viz., Sct 187, SSR 1859, Satt 191 (Rpp1b like loci) and Satt 215, Sat_361 (Rpp2 loci) distinguished the ASR resistant and susceptible bulks and individuals. In combined marker analysis, the markers Satt 191 (Rpp1b like loci) and Satt 215 (Rpp2 loci) were linked with ASR severity score and were also confirmed in individual 110 F2 segregants. Hence, these markers could be utilized in the marker assisted rust resistance breeding of Rpp1b like and Rpp2 genes. In silico candidate gene analysis for hypersensitive response revealed that Satt 191 linked region was rich in genes encoding apoptotic ATPase having leucine‐rich repeat (LRR) domain. 相似文献
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Bacterial leaf pustule (BLP) caused by Xanthomonas axonopodis pv. glycines (Xag) is a serious soybean disease. A BLP resistant genotype ‘TS-3’ was crossed with a BLP susceptible genotype ‘PK472’, and a segregating F2 mapping population was developed for genetic analysis and mapping. The F2 population segregation pattern in 15:1 susceptible/resistance ratio against Xag inoculum indicated that the resistance to BLP in ‘TS-3’ was governed by two recessive genes. A total of 12 SSR markers, five SSR markers located on chromosome 2 and seven SSR markers located on chromosome 6 were identified as linked to BLP resistance. One of the resistance loci (r1) was mapped with flanking SSR markers Sat_183 and BARCSOYSSR_02_1613 at a distance of 0.9 and 2.1 cM, respectively. Similarly, SSR markers BARCSOYSSR_06_0024 and BARCSOYSSR_06_0013 flanked the second locus (r2) at distances of 1.5 and 2.1 cM, respectively. The identified two recessive genes imparting resistance to BLP disease and the SSR markers tightly linked to these loci would serve as important genetic and molecular resources to develop BLP resistant genotypes in soybean. 相似文献