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1.
粳稻大剑叶角资源的发现及剑叶角度的遗传分析与QTL定位 总被引：2，自引：0，他引：2
利用粳稻保持系863B（P1）与A7444（P2）进行配组,构建了P1、P2、F1、B1(F1/P1)、B2(F2/P2)和F2 6个世代,并对剑叶角度进行遗传分析。调查了P1与P2及BC1F1世代141个单株SSR标记基因型和剑叶角度,构建该组合的SSR标记连锁图谱并定位剑叶角度的QTL。该连锁图谱由79个多态位点构成,全长441.6 cM,相邻标记的平均图距为5.6 cM。主基因加多基因的遗传模型分析结果表明,剑叶角度受2对主基因+多基因控制,以主基因遗传为主。单标记分析显示有15个标记与剑叶角度呈极显著相关。利用两种分析软件WinQTLCart 2.5和QTL Network 2.0共同检测到2个控制剑叶角度的QTL(qFLA2、qFLA8)。qFLA2位于RM300-RM145区间,qFLA8位于RM6215-RM8265区间,这两个QTL增效等位基因都来自A7444。 相似文献
2.
春小麦旗叶大小相关性状的QTL定位分析 总被引：1，自引：0，他引：1
为了发掘控制春小麦旗叶大小相关性状的QTL,以宁春4号/Drasdale构建的包含148个家系的RIL群体F8代为试验材料,在正常灌溉和不同干旱胁迫共3种处理下对小麦开花期旗叶长、宽、面积和周长进行了QTL定位。结果表明,共检测到相关加性QTL 22个,其中,控制旗叶面积的QTL有3个,控制旗叶长的QTL有5个,控制旗叶宽的QTL有9个,控制旗叶周长的QTL有5个,分布于1B、2D、3B、4B、7A、7B和7D染色体上,单个QTL的贡献率在6.58%~39.83%之间。其中,qFLW-2D-2.T1在T1和T3处理下均能够检测到,qFLW-7D.T1在T1和T2处理下也均能够检测到,说明这2个QTL表达不依赖于水分条件,属于稳定表达的QTL。其他QTL只在一种处理下能够检测到,说明其表达依赖于水分条件。同时,本研究也检测到了在不同处理下同时控制2种或3种性状的QTL,推测这些区域的QTL可能为一因多效QTL,但有待于进一步验证。 相似文献
3.
Fine Mapping of C（Chromogen for Anthocyanin） Gene in Rice 总被引：1，自引：1，他引：0
FAN Fang-jun FAN Ye-yang Du Jing-hong ZHUANG Jie-yun 《水稻科学》2008,15(1):1-6
Seven residual heterozygous lines (RHLs) displaying different genotypic compositions in the genomic region covering probable locations of C (Chromogen for anthocyanin) gene on the short arm of rice chromosome 6 were selected from the progenies of the indica cross Zhenshan 97B/Milyang 46. Seeds were harvested from each of the seven plants, and the resultant F2:3 populations were used for fine mapping of C gene. It was shown in the populations that the apiculus coloration matched to basal leaf sheath coloration in each plant. By relating the coloration performances of the populations with the genotypic compositions of the RHLs, the C locus was located between rice SSR markers RM314 and RM253. By using a total of 1279 F2:3 individuals from two populations showing coloration segregation, the C locus was then located between RM111 and RM253, with genetic distances of 0.7 cM to RM111 and 0.4 cM to RM253. Twenty-two recombinants found in the two populations were assayed with seven more markers located between RM111 and RM253, including six SSR markers and one marker for the C gene candidate, OsC1. The C locus was delimited to a 59.3-kb region in which OsC1 was located. 相似文献
4.
《Plant Production Science》2013,16(2):224-232
AbstractIn rice (Oryza sativa L.), the maintenance of high photosynthetic rate of flag leaves and the carbon remobilization from leaf sheaths after heading is a critical physiological component affecting the yield. To clarify the genetic basis of RuBisCO content of the flag leaf, a major determinant of photosynthetic rate, and non-structural carbohydrate (NSC) concentration in the third leaf sheath at heading, we carried out quantitative trait loci (QTL) analysis with 39 Koshihikari/Kasalath chromosome segment substitution lines (CSSLs) and backcross progeny F2 population derived from target CSSL holding the QTL/Koshihikari in the field. QTLs for RuBisCO content and NSC concentration at heading were detected between R2447-C1286 and R2447-R716 on chromosome 10, respectively, by comparing Koshihikari with four CSSLs for chromosome 10 (SL-229, -230, -231 and -232). The progeny QTL for RuBisCO content and for NSC concentration at heading qRCH-10 and qNSCLSH-10-1, respectively, were detected at similar marker intervals between RM8201 and RM5708. In addition, QTLs for RuBisCO content at 14 d after heading, qRCAH-10-1 and qRCAH-10-2, were detected in regions different from that of qRCH-10. No QTL for NSC concentration at 14 d after heading was detected between RM8201 and R716, the region analyzed in this study. The QTLs qRCH-10 and qRCAH-10-1 for RuBisCO content would have additive effects. These QTLs for RuBisCO content and NSC concentration newly found using CSSLs and their backcross progeny F2 population should be useful for better understanding the genetic basis of source and temporary-sink functions in rice and for genetic improvement of Koshihikari in terms of their functions. 相似文献
5.
Identification of quantitative trait loci (QTLs) for grain mineral elements can assist in faster and more precise development of micronutrient dense rice varieties through marker-assisted breeding. In the present study, QTLs were mapped for Fe and Zn concentrations in two BC2F3 mapping populations derived from the crosses of O. sativa cv Swarna with two different accessions of O. nivara. In all, 10 and 8 QTLs were identified for grain Fe and Zn concentrations in population 1, and 7 and 5 QTLs were identified in population 2, respectively. Eighty percent of the QTLs detected in both populations were derived from O. nivara. Five QTLs for Fe and three QTLs for Zn explained more than 15% phenotypic variance either in interval or composite interval mapping. The locations of O. nivara derived QTLs such as qFe2.1, qFe3.1, qFe8.2 and qZn12.1 were consistently identified in both the populations. Epistatic interaction was observed only between RM106 and RM6 on chromosome 2 and between RM22 and RM7 on chromosome 3 for Fe concentration in population 1. Sixteen candidate genes for metal homeostasis were found to co-locate with 10 QTLs for Fe and Zn concentrations in both the populations. Most of the Fe and Zn QTLs were found to co-locate with QTLs for grain yield and grain quality traits. Some of the major effect QTLs identified can be used to improve rice grain Fe and Zn concentrations. 相似文献
6.
《Plant Production Science》2013,16(4):447-456
AbstractThirty-nine chromosome segment substitution lines (CSSLs) population derived from a Koshihikari / Kasalath cross was used for quantitative trait locus (QTL) analysis of plant type in rice (Oryza sativa L.). Putative rough QTLs (26.2～60.3cM of Kasalath chromosomal segments) for culm length, plant height, panicle number, chlorophyll content of flag leaf blade at heading and specific leaf weight, were mapped on the several chromosomal segments based on the comparison of CSSLs with Koshihikari in the field experiment for 3 years. In order to verify and narrow QTLs detected in CSSLs, we conducted QTL analyses using F2 populations derived from a cross between Koshihikari and target CSSL holding a putative rough QTL. The qPN-2, QTL for panicle number was mapped on chromosome 2. In traits of flag leaf, the qCHL-4-1 and qCHL-4-2 for chlorophyll content was mapped on chromosome 4, and the qSLW-7 for specific leaf weight on chromosome 7. All QTLs were detected in narrow marker intervals, compared with rough QTLs in CSSLs. The qPN-2, qCHL-4-1 and qCHL-4-2 had only additive effect. On the other hand, the qSLW-7 showed over-dominance. It could be emphasized that QTL analysis in the present study with the combination of CSSLs and backcross progeny F2 population can not only verify the rough QTLs detected in CSSLs but also estimate allelic effects on the QTL. 相似文献
7.
旗叶相关性状是影响小麦植株结构、光合能力和产量潜力的重要因素。为发掘控制小麦旗叶性状相关的数量性状位点(QTL),以品冬34和MY11847为亲本构建的含有356个株系的F7:8重组自交系(recombinant inbred line, RIL)群体为材料,基于本课题组前期利用简化基因组测序(specific-locus amplified fragment sequencing, SLAF-seq)结合传统分群分析法(bulk segregant analysis, BSA)技术构建的高密度遗传连锁图谱,对小麦灌浆期旗叶长、旗叶宽和旗叶面积进行QTL定位。结果表明,共检测到9个旗叶长QTL、7个旗叶宽QTL和8个旗叶面积QTL,可解释1.71%～14.71%的表型变异。其中,旗叶长位点QFLL.nwafu-3D和QFLL.nwafu-2D.1、旗叶宽位点QFLW.nwafu-6B以及旗叶面积位点QFLA.nwafu-3D的表型贡献率均大于10%,为主效QTL,且QFLL.nwafu-3D和QFLA.nwafu-3D共定位于相同遗传区间。 相似文献
8.
A spontaneous mutation,tentatively named d63,was derived from the twin-seedling progenies of rice crossed by diploid SARIII and Minghui 63.Compared with wild-type plants,the d63 mutant showed multiple abnormal phenotypes,such as dwarfism,more tillers,smaller flag leaf and reduced seed-setting rate and 1000-grain weight.In this study,two F 2 populations were developed by crossing between d63 and Nipponbare,d63 and 93-11.Genetic analysis indicated that d63 was controlled by a single recessive gene,which was located on the short arm of chromosome 8,within the genetic distance of 0.40 cM from RM22195.Hence,D63 might be a new gene as there are no dwarf genes reported on the short arm of chromosome 8. 相似文献
9.
Wenqiang Liu Xiaowu Pan Yongchao Li Yonghong Duan Jun Min Sanxiong Liu Licheng Liu Xinnian Sheng Xiaoxiang Li 《水稻科学》2019,26(1):42-49
Cadmium(Cd) is one of heavy metals harmful to human health. As rice is the main staple food in Asia and Cd is easily contaminated in rice, the molecular regulation of Cd accumulation should be explored. In this study, a recombinant inbred population derived from Xiang 743/Katy was grown in Cd-polluted fields and used to map the quantitative trait loci(QTLs) for Cd accumulation in rice grains. We identified seven QTLs distributed on chromosomes 2, 3, 6, 7, 8 and 10. These QTLs displayed phenotypic variances of 58.50% and 40.59% in 2014 and 2015, respectively. Two QTLs, qCd-2 and qCd-7, were identified in both the two years. qCd-2 was detected on the interval of RM250–RM207 on chromosome 2, with an LOD of 2.51 and a phenotypic contribution of 13.75% in 2014, and an LOD of 3.35 and a phenotypic contribution of 14.16% in 2015. qCd-7 co-localized with the cloned qCdT7 on chromosome 7 and may represent the correct candidate. The other five QTLs were detected only in one year. To further confirm the effects of qCd-2, a residual heterozygous line designated as RHL945, with a heterozygous interval of RM263–RM207 on chromosome 2, was selected from the recombinant inbred population and used to develop an F2 population consisting of 155 individual plants. By incorporating further simple sequence repeat markers into the segmental linkage map of the target region, qCd-2 was delimited in the interval of RM5404–RM3774, with an LOD value of 4.38 and a phenotypic contribution of 15.52%. These results reflected the genetic regulation of grain Cd in rice and paved the way for the future cloning of qCd-2. 相似文献
10.
【目的】通过对水稻剑叶性状的综合评价,明确剑叶相关性状间及与6个农艺性状的关系。检测剑叶相关性状的QTL,为优良株型品种选育,剑叶性状基因的精细定位和克隆奠定基础。【方法】以日本优质粳稻品种越光和葡萄牙粳稻地方种Bertone构建的回交群体两个世代为实验材料,利用BC3F1群体基因型构建遗传连锁图谱;测定亲本和BC3F2群体各株系剑叶SPAD、剑叶长、剑叶宽,计算剑叶长宽比、剑叶面积;利用隶属函数和标准差系数赋予权重法获得剑叶性状综合评价值(D值),分析其与6个农艺性状间的关系。分别利用单标记分析(SPA)和区间作图(IM)检测水稻剑叶相关性状QTL。【结果】在抽穗灌浆期,两亲本剑叶SPAD值呈现先升高后降低的动态变化。BC3F2群体的5个剑叶相关性状变异丰富,总体表现趋向轮回亲本越光。4个剑叶形态性状间相关性均达到极显著水平,与剑叶SPAD的相关性不显著。主成分和逐步线性回归分析表明剑叶宽、剑叶SPAD、剑叶长、剑叶面积是影响剑叶综合评价值(D值)的主要因子。高D值株系的株高、穗长、茎基粗和单株产量均极显著高于低D值株系,两者的分蘖数和有效穗数差异不显著。共检测到18个控制剑叶性状的QTL,分布在水稻第1、4、7和8染色体上,贡献率分布范围为4.00%~28.00%(SPA)和3.41%~27.00%(IM),除qFLSPAD1之外的17个QTL增效基因均来自Bertone。在第8染色体上的RM22720-RM404区间发现1个QTL簇,含6个主效QTL,分别为qFLL8.1、qFLL8.2、qFLA8.1、qFLA8.2、qD8.1和qD8.2。【结论】获得了剑叶宽、剑叶SPAD、剑叶长和剑叶面积4个评价剑叶性状的关键指标;明确了剑叶性状与单株产量之间的正相关关系;检测到18个剑叶相关性状QTL,位于第8染色体RM22720-RM404区间的QTL簇,是影响剑叶性状的1个重要染色体区域。 相似文献
11.
To increase the thermotolerance of improved White Ponni (IWP), two quantitative trait loci (QTLs), qHTSF1.1 and qHTSF4.1, controlling spikelet fertility under high-temperature stress, were introgressed from Nagina 22 into IWP through marker-assisted breeding. The progenies were subjected to foreground selection of target QTLs using simple sequence repent markers RM431 and RM5757 linked to qHTSF1.1 and qHTSF4.1, respectively. At each generation, foreground selection with single target QTL or both QTLs was done together. The QTL-positive plants were forwarded to next generation by selfing. The F2:3 progenies were subjected to phenotypic analyses under high-temperature stress at the flowering stage. Chlorophyll stability index, malondialdehyde content, grain yield, and yield-related components of the F2:3 progenies were measured. The progenies IWP-295, IWP-277 and IWP-246 harboring both qHTSF1.1 and qHTSF4.1 showed higher fertility percentages under high-temperature stress at the flowering stage. These QTLs were responsible for maintaining membrane integrity and yield under elevated temperature conditions. 相似文献
12.
为加快AL型杂交小麦的发展,以不育系AL18A、恢复系99AR144-1及二者杂交F2代群体为材料,选用SSR标记和分离群体分组分析法进行育性恢复基因的QTL定位。结果表明,育性恢复由主效和微效基因共同控制,采用复合区间作图法分析,在1B染色体上检测到了1个主效恢复基因QTLqRf-1B-1,在5AL染色体上检测到了1个微效QTLqRf-5A-1。qRf-1B-1位于SSR标记Xbarc8与Xgwm413之间,与两标记的遗传距离分别为0.85cM和2.00cM,LOD值为14.06,加性效应为18.87,可解释22.43%的表型变异;qRf-5A-1位于SSR标记Xgwm595与Xgwm410之间,与两标记的遗传距离分别为10.00cM和0.10cM,LOD值为3.18,加性效应为12.32,可解释5.44%的表型变异。 相似文献
13.
FAN Gui-zhi DONG Yan-jun WANG Chun-ming WAN Jian-min XIE Hui XU Chang-liang ZHU Jian-guo CAI Qing-sheng 《水稻科学》2007,14(1):7-12
To understand the responses of flag leaf shape in rice to elevated CO2 environment and their genetic characteristics,quantitative trait loci(QTLs)for flag leaf shape in rice were mapped onto the molecular marker linkage map of chromosome segment substitution lines(CSSLs)derived from a cross between a japonica variety Asominori and an indica variety IR24 under free air carbon dioxide enrichment(FACE,200μmol/mol above current levels)and current CO2 concentration(Ambient,about 370μmol/mol).Three flag-leaf traits,flag-leaf length(LL),width(LW)and the ratio of LL to LW (RLW),were estimated for each CSSL and their parental varieties.The differences in LL,LW and RLW between parents and in LL and LW within IR24 between FACE and Ambient were significant at 1%level.The continuous distributions and transgressive segregations of LL,LW and RLW were also observed in CSSL population,showing that the three traits were quantitatively inherited under both FACE and Ambient.A total of 16 QTLs for the three traits were detected on chromosomes 1,2,3,4,6,8 and 11 with LOD(Log10-likelihood ratio)scores ranging from 3.0 to 6.7.Among them,four QTLs (qLL-6*,qLL-8*,qLW-4*,and qRLW-6*)were commonly detected under both FACE and Ambient.Therefore,based on the different responses to elevated CO2 in comparison with current CO2 level,it can be suggested that the expressions of several QTLs associated with flag-leaf shape in rice could be induced by the high CO2 level. 相似文献
14.
为了发掘新的穗部性状和株高QTL,利用扬麦17与扬麦18杂交后代206个单株组成的F2群体,构建了一个由141个SSR标记组成的全长1005.1cM的遗传图谱。该图谱包括26个连锁群,覆盖15条染色体,标记间平均距离为7.03cM。结合F2和F2:3群体的表型数据,对穗部性状和株高进行QTL分析,利用复合区间作图法检测出15个QTL,分布在2B、2D、4B、5A、5B和7A染色体上,其中4个QTL能够同时在两个世代被检测到,表型变异解释率为1.93%~20.78%,穗长QTLQSl-YY-2D、QSl-YY-5A和株高QTLQPh-YY-4B的贡献率超过10%。根据6VS特异性标记鉴定和表型调查结果,推测扬麦18的6VS上携带有增加穗长和穗粒数的基因,且为部分显性。2B染色体上总小穗数和5B染色体上穗粒数、穗基部结实粒数的QTL增效等位基因及2D、4B染色体上降低株高的QTL增效等位基因均来自扬麦18,表明该品种可作为具有高产潜力的小麦育种材料加以利用。 相似文献
15.
Christian Okechukwu Anyaoha Mamadou Fofana Vernon Gracen Pangirayi Tongoona Semon Mande 《水稻科学》2019,26(1):32-41
FUNAABOR-2 is a popular Ofada rice variety grown in a large area under rainfed upland condition across western states of Nigeria. We used the combination of phenotypic and marker-assisted selection(MAS) to improve grain yield of FUNAABOR-2 under drought stress(DS) at the reproductive stage via introgression of two drought quantitative trait loci(QTLs), qDTY12.1 and qDTY2.3. Foreground selection was carried out using peak markers RM511 and RM250, associated with qDTY12.1 and qDTY2.3, respectively, followed by recombinant selection with RM28099 and RM1261 distally flanking qDTY12.1. Furthermore, BC1 F2-derived introgressed lines and their parents were evaluated under DS and non-stress(NS) conditions during the 2015–2016 dry season. Overall reduction of grain yield under DS compared to NS was recorded. Introgressed lines with qDTY12.1 and qDTY2.3 combinations showed higher yield potential compared to lines with single or no QTL under DS, indicating significant positive interactions between the two QTLs under the FUNAABOR-2 genetic background. Pyramiding of qDTY12.1 and qDTY2.3 in the FUNAABOR-2 genetic background led to higher grain yield production under DS and NS. 相似文献
16.
春小麦旗叶长度、宽度及叶绿素含量QTL分析 总被引：1，自引：0，他引：1
为了提高高产和理想株型小麦的选育效率,以普通小麦(Triticum aestivum L.)宁春4号和宁春27号杂交得到的128个F9代重组自交系(RILs)为试验材料,利用从1 001个SSR标记中筛选出的307个在亲本之间存在多态性的标记对该群体进行遗传分析和QTL检测.构建了覆盖小麦21对染色体的包含291个SSR标记的遗传连锁图谱,遗传距离总计2 576.09 cM,标记间平均遗传距离为8.85 cM.以复合区间作图法(ICIM)分别对旗叶长度、宽度和叶绿素含量进行加性QTL检测,分别检测到6、8和4个QTL.多数QTL只在单一生态环境下检测到,说明这些性状受一定环境因素的影响. 相似文献
17.
为了发掘更多控制小麦旗叶大小及穗部相关性状的QTL,以兰考906和小偃81创制的133个F6~F7重组自交系为试验材料,在6个环境下利用SSR标记对旗叶大小及穗部相关性状进行QTL定位。结果表明,有202对SSR标记被用于构建遗传连锁图谱,图谱覆盖小麦21条染色体,全长1 678.93cM,标记间平均距离8.30cM。采用完备区间作图法共检测到30个QTL,分布在1B、2A、3D、4A、4B、4D、5D、6A、6B、6D和7D染色体上。其中,旗叶宽QTL有7个,穗长QTL有9个,小穗数QTL有5个,穗粒数QTL有5个,小穗着生密度QTL有4个,不同环境下单个QTL可解释的表型变异率为4.94%~23.14%,有14个QTL的表型贡献率大于10%,有8个QTL可在2个或2个以上环境中被检测到。其中,Qflw-4A在3个环境中被检测到,贡献率为10.13%~20.77%,是控制旗叶宽的稳定主效QTL;Qsl-4D.2在4个环境中被检测到,贡献率为12.58%~23.14%,是控制穗长的稳定主效QTL;Qker-5D在2个环境中被检测到,贡献率为11.44%~14.32%,是控制穗粒数的稳定主效QTL。这3个稳定主效QTL可作为改良叶宽和增加穗粒数的功能QTL作进一步研究。 相似文献
18.
冬前镇压和灌溉对冬小麦灌浆期旗叶光合特性和叶绿体超微结构的影响 总被引：1，自引：0，他引：1
为明确冬前镇压和灌溉对冬小麦灌浆期旗叶功能的影响,以济麦22为材料,在2016-2017小麦生长季,对其进行冬前镇压+灌溉(C+I)、灌溉(I)和镇压(C)处理,以常规种植管理为对照(CK),研究不同冬前栽培措施对冬小麦灌浆期土壤微环境、旗叶光合特性和叶绿体超微结构以及最终产量和生物量的影响。结果表明,与CK相比,C、I及C+I处理都可提高麦田土壤含水量和土壤温度,可增加花后14～28d旗叶叶绿素相对含量(SPAD)、灌浆期旗叶最大光学效率(Fv/Fm)、净光合速率(Pn)和蒸腾速率(Tr),缓解旗叶SPAD、Fv/Fm、Pn和Tr在灌浆后期的下降,其中以C+I处理的效果最佳;灌浆中后期(花后21d),CK条件下小麦植株旗叶部分叶绿体呈圆形,大部分基粒片层变形且排列紊乱,可见较多的亲锇颗粒,但C+I、C和I处理下叶绿体的破坏程度降低,较多的叶绿体呈椭圆形,单位面积内叶绿体数和叶绿体基粒数提高,基粒片层较CK清晰且排列紧密,亲锇颗粒数量减少,其中C+I和I处理对叶绿体超微结构的改善作用大于C处理。这说明在本试验条件下,冬前镇压+灌溉较单独灌溉或镇压更有利于改善小麦灌浆期旗叶光合功能,缓解灌浆后期旗叶的衰老,促进小麦产量形成。 相似文献
19.
玉米穗上叶与主茎夹角性状的数量遗传研究 总被引：2，自引：2，他引：0
以两个株型不同的玉米自交系自330和PH4CV构成的6世代群体为试验材料,利用量角器测定玉米穗上叶基部与主茎自然夹角角度。通过P1、P2、F1、F2、B1和B26个世代联合分析法,研究玉米穗上叶与主茎夹角性状的基因遗传分离规律。结果表明,该性状在F2分离世代群体呈多峰分布,B1和B2群体分离世代呈双峰分布,说明玉米穗上叶与主茎夹角性状遗传由多基因数量性状控制,且符合一对加-显主基因+加-显-上位性多基因遗传模型(即D模型),主基因遗传率为27.55%～52.60%,多基因遗传率为47.40%～72.45%,两者在后代遗传方面都具有重要作用。 相似文献
20.
基于SRAP和SSR标记的小麦品质相关性状的QTL定位 总被引：2，自引：0，他引：2
为了对小麦品质相关性状进行QTL定位,以两个品质性状差异较大的小麦品种西农981和陕麦159构建的169株F2群体和F2:3家系为材料,利用SRAP标记和SSR标记进行遗传图谱构建,并通过完备区间作图法对杨凌及三原两个环境下籽粒的粗蛋白质含量、淀粉含量、湿面筋含量和Zeleny沉降值进行QTL定位。结果表明,在两个环境下共检测到33个与品质性状相关的QTL,其中11个为粗蛋白含量QTL,分布于1A、3A、5A、6A、2B和4B染色体上,可解释表型效应的0.69%~2.48%;7个为淀粉含量QTL,分布于1A、6A、4B和2D染色体上,可解释表型变异的2.94%~6.99%;12个为湿面筋含量QTL,分布于1A、3A、5A、6A、2B、3B和4B染色体上,可解释表型变异的0.58%~2.37%;3个为Zeleny沉降值QTL,分布于3A、1B和3B染色体上,可解释表型变异的2.72%~11.31%。同时,在1A、3A、5A、6A、2B、4B染色体上存在粗蛋白质含量、淀粉含量和湿面筋含量QTL富集区,在后续研究中可重点关注。 相似文献