期刊文献+
共找到9篇文章
< 1 >
每页显示 20 50 100
基于BLUP方法估计玉米组合不同时期籽粒品质相关性状遗传参数的差异
1
作者 孙佩 张培风 +4 位作者 张玉红 周联东 张瑞平 李合顺 王学军 《陕西农业科学》 2023年第10期24-28,共5页
籽粒品质性状的遗传参数分析,可以为优良品质的玉米新品种选育提供依据。本研究以10个玉米组合为材料,利用R软件的混合线性模型,获取不同取样时期每个基因型的最佳线性无偏预测值(Best linear unbiased prediction,BLUP),进行籽粒品质... 籽粒品质性状的遗传参数分析,可以为优良品质的玉米新品种选育提供依据。本研究以10个玉米组合为材料,利用R软件的混合线性模型,获取不同取样时期每个基因型的最佳线性无偏预测值(Best linear unbiased prediction,BLUP),进行籽粒品质相关性状遗传参数分析。结果表明,BLUP数据更接近于真实育种值。不同取样时期,品质性状的变异系数变化较大,籽粒品质性状的最大变化发生在S3(9月14日)到S4(9月18日)时期,此时玉米正由蜡熟期进入完熟期。对各品质性状间的相关性进行分析,粗脂肪与粗蛋白、氨基酸均存在显著或极显著正相关。水分、粗蛋白、粗脂肪、粗淀粉、氨基酸含量均属于高遗传力性状,其中,粗淀粉的遗传力最高,达0.887,容重属于中等遗传力性状。 展开更多
关键词 玉米 品质相关性状 遗传参数 BLUP
下载PDF
四川地方小麦品种产量与品质相关性状SSR标记位点的优异等位变异遗传解析 被引量:2
2
作者 刘涛 权文彦 +5 位作者 吴雪莲 周露 程宇坤 姚方杰 叶雪玲 陈国跃 《麦类作物学报》 CAS CSCD 北大核心 2015年第4期449-456,共8页
为发掘控制小麦产量及品质相关性状的优异等位变异和携带优异等位变异的基因资源,本研究采用与小麦产量及品质相关性状显著关联的13个SSR标记,利用Breseghello提出的无效等位变异(null allele)方法对64份四川地方小麦品种构成的自然群... 为发掘控制小麦产量及品质相关性状的优异等位变异和携带优异等位变异的基因资源,本研究采用与小麦产量及品质相关性状显著关联的13个SSR标记,利用Breseghello提出的无效等位变异(null allele)方法对64份四川地方小麦品种构成的自然群体的等位变异进行遗传解析。共鉴定出38个控制产量相关性状、18个控制品质相关性状的等位变异。其中,7份四川地方小麦品种携带有较多的等位变异(>50个)。优异等位变异分析显示,等位变异产生的表型效应值在方向和大小上均有所不同,在与产量性状关联的5个优异等位变异中,2个具有较大增效效应值(效应值>3.00),其余3个则具有较大的减效效应值(效应值>3.00);与品质性状关联的12个优异等位变异中,9个具有较大的增效效应值,3个具有较大的减效效应值。SSR标记Xgwm372的4个等位变异与产量和品质相关性状均显著关联。基于上述研究结果,这些与小麦产量与品质相关性状显著关联的SSR等位变异可为小麦育种杂交亲本的选择和分子辅助选择育种提供依据。 展开更多
关键词 四川地方小麦品种 SSR 产量和品质相关性状 优异等位变异 等位变异效应
下载PDF
小麦主要品质性状相关性及主成分分析 被引量:49
3
作者 赵鹏涛 赵卫国 +3 位作者 罗红炼 翟周平 李保军 苟升学 《中国农学通报》 2019年第21期7-13,共7页
为了评价小麦主要品质性状对小麦品质贡献关系,本研究以219份小麦品系为研究对象,通过多种粉质仪和近红外谷物分析仪,并依据国家粮食检验标准对小麦多个品质性状进行检验,并进行相关性和主成分分析。结果表明:容重和最大拉伸阻力具有较... 为了评价小麦主要品质性状对小麦品质贡献关系,本研究以219份小麦品系为研究对象,通过多种粉质仪和近红外谷物分析仪,并依据国家粮食检验标准对小麦多个品质性状进行检验,并进行相关性和主成分分析。结果表明:容重和最大拉伸阻力具有较大的变异幅度,而湿面筋含量和吸水率变异幅度较小;稳定时间变异系数最大(41.85%);容重与硬度,蛋白质含量和湿面筋含量呈极显著负相关;硬度与吸水率和延展性相关性最高;除了容重,沉降值与其他品质呈极显著正相关;蛋白质含量和湿面筋含量与容重呈极显著负相关;吸水率与延展性和最大拉伸阻力呈现极显著正相关,与稳定时间呈极显著负相关;稳定时间与拉伸面积、延展性和最大拉伸阻力呈极显著正相关;拉伸面积与延展性和最大拉伸阻力呈极显著正相关。通过主成分分析,小麦主要品质性状可综合为沉降因子、面团因子和容重因子,累积贡献率达到93.54%,基本反映小麦品质性状的全面信息。研究结果将为小麦加工品质预测及优质小麦品种选育提供理论基础和参考依据。 展开更多
关键词 小麦品系 品质相关性状 相关性分析 主成分分析 品种选育
下载PDF
甘蓝型油菜DH群体主要品质性状相关性及主成分分析 被引量:17
4
作者 赵卫国 王灏 +8 位作者 穆建新 关周博 李保军 赵小萍 陈文杰 塔娜 朝红波 罗斌 栗茂腾 《中国农学通报》 2019年第14期18-24,共7页
研究甘蓝型油菜品质性状之间的相关性,以期有效改良油菜的品质性状。将170份DH纯系于2009—2012年进行田间试验,并对油菜籽粒品质进行检测。同时,对油菜籽粒品质表型进行相关性和主成分分析。结果表明,父本和母本芥酸含量的变异系数最大... 研究甘蓝型油菜品质性状之间的相关性,以期有效改良油菜的品质性状。将170份DH纯系于2009—2012年进行田间试验,并对油菜籽粒品质进行检测。同时,对油菜籽粒品质表型进行相关性和主成分分析。结果表明,父本和母本芥酸含量的变异系数最大(相差15.53%)。油菜DH群体中硫甙含量的变异幅度最大(128.43μmol/g饼粕),饱和脂肪酸的变异幅度最小(1.97%)。DH群体籽粒品质性状表型变异表现出超亲分离的遗传特点。除了芥酸含量,含油量与其他组分呈现出极显著的负相关,特别是与蛋白质含量的负相关最大(R=-0.72);蛋白质含量与油酸、亚油酸、亚麻酸和硫甙含量均呈极显著的正相关,与含油量和芥酸呈极显著的负相关;除了蛋白质含量,其他品质含量皆与硫甙含量呈现出极显著或者不显著负相关。主成分分析可将品质性状综合为油酸亚油酸酸因子、蛋白质因子、亚麻酸因子和硫甙因子,累积贡献率达93.94%,基本反映甘蓝型油菜品质性状的全面信息。 展开更多
关键词 甘蓝型油菜 DH系群体 品质相关性状 相关 主成分分析
下载PDF
基因型和环境对转基因抗虫杂交棉种子品质的影响 被引量:3
5
作者 刘天雄 陈进红 +1 位作者 何秋伶 祝水金 《科技通报》 北大核心 2013年第3期88-95,共8页
以10个转基因抗虫杂交棉品种在7个不同地点的实验材料,分析了基因型和环境及其互作对棉籽种仁率、短绒率、蛋白质含量和油分含量等7个主要种子品质性状的影响。结果表明,基因型和环境及其互作效应对于所分析的转基因抗虫杂交棉品种的种... 以10个转基因抗虫杂交棉品种在7个不同地点的实验材料,分析了基因型和环境及其互作对棉籽种仁率、短绒率、蛋白质含量和油分含量等7个主要种子品质性状的影响。结果表明,基因型和环境及其互作效应对于所分析的转基因抗虫杂交棉品种的种子品质性状均有极显著的影响。根据种子品质性状分析结果,每个品种都有适宜其种植的地区。不同地点种子品质性状的表现不尽相同,同一地点不同性状之间的表现也不一致。因此,基因型和环境效应分析中应注重品种的综合表现,育种改良时应考虑其品质性状在育种目标中的权重进行品质改良和综合提高。相关性分析表明,棉籽短绒率与棉仁中蛋白质含量有极显著负相关,但与种仁油分含量和棉酚含量呈极显著正相关。 展开更多
关键词 基因型 环境 品质性状 相关性分析
下载PDF
Correlation Analysis of Characters of Indica Hybrid Rice with High Content of Amylose 被引量:4
6
作者 杨扬 况浩池 +4 位作者 曾正明 罗俊涛 陈光珍 何兴材 付均 《Agricultural Science & Technology》 CAS 2013年第3期475-477,共3页
[Objective] The aim was to research and analyze characters and related correlation of indica hybrid rice containing high amylose. [Method] In the research, major characters of 16 species of groups of {ndica hybrid ric... [Objective] The aim was to research and analyze characters and related correlation of indica hybrid rice containing high amylose. [Method] In the research, major characters of 16 species of groups of {ndica hybrid rice and the correlation were explored in rice belts in Sichuan in 2011. [Result] The variation of chalkiness degree was the highest at 26.8%, followed by rate of head rice at 22.89%; varia- tions of head rice rate and chalkiness degree were lower at 0.72% and 2.61%. In addition, rate of unpolished rice was of significantly negative correlation with chalki- ness degree; rate of chalky rice was of extremely positive correlation with chalkiness degree and gel consistency; chalkiness degree was of significantly positive correla- tion with gel consistency; gel consistency was of significantly negative correlation with protein content; amylose content was of insignificant correlation with gel consis- tency (r=0.166 9) of the 16 hybrid groups. These indicated that gel consistency would be still high as the content of amylose grows (AC≥25%). For example, when the content of anylose in Chuanxiang 29A/Luhui 37, Kangfeng AJ6684, and Lefeng A/SR536 exceeded 27%, the gel consistency was over 80 mm in the research. [Conclusion] The research provides references for improvement of amylose content in breeding hybrid rice. 展开更多
关键词 Higher amylose content Indica hybrid rice CHARACTERS Correlaiton analysis
下载PDF
Analysis of Correlation between Yield and Quality Traits of Quality Hybrid Rapeseed 被引量:3
7
作者 高志宏 赵继献 +1 位作者 任廷波 程国平 《Agricultural Science & Technology》 CAS 2013年第12期1737-1741,1771,共6页
[Objective] This study aimed to investigate the correlation between yield and quality traits of rape. [Method] Taking "Sanbei 98" and "Youyan 599" as ex- periment materials, correlation between yield and quality t... [Objective] This study aimed to investigate the correlation between yield and quality traits of rape. [Method] Taking "Sanbei 98" and "Youyan 599" as ex- periment materials, correlation between yield and quality traits of Brassica napus L. cultivars was explored by orthogonal rotation method. [Result] The results showed that: 1 In both the two varieties-Sanbei98 and Youyan599, erucic acid content had the largest coefficient of variation, but its average content was lower than 2% in both the two varieties (0.90% in Sanbei98 and 1.24% in Youyan599), and the palmitic acid content had the smallest coefficient of variation. 2 In terms of the dif- ferences in quality traits at different yield levels, only the mean of eicosenoic acid content revealed significant difference in Sanbei98, and only the mean of seed-pro- tein content revealed significant difference in Youyan599, and there was no signifi- cant difference in any combined quality traits in both the two varieties. 3 The yield was negatively correlated with the erucic acid content or oil content, and posi- tively correlated with the content of seed-protein, linoleic acid, or linolenic acid, and the coefficient of correlation between the yield and either of the contents of glucosi- nolates, oleic acid, palmitic acid, stearic acid, and eicosenoic acid was smaller. ~, when the yield of a variety increased considerably, there was a certain decreasing trend in erucic acid content, oil content, the total amount of erucic chain fatty acids (El & Er), while there was an increasing trend in seed-protein content, linoleic acid content, linolenic acid content, saturated fatty acids (SFA), the total amount of fat and protein (P & F), unsaturation index (IUFA), unsaturated fatty acids (UFA), the total amount of 18 carbon fatty acids (18-C FA), unsaturated fatty acids [UFA/(Ei & Er) ], and the sum of oleic acid and linoleic acid (OI & Li). 5 When the seed-pro- tein content is increased, the quality of rape oil cake is also improved; when the unsaturated index is increased, the oil stability is decreased. The increase in the total amount of unsaturated fatty acids, oleic acid and linoleic acid helps to increase in the total amount of fatty acids absorbed by human bodies. [Conclusion] This study provides a theoretical foundation for the cultivation of high-yielding and top- quality hybrid rape cultivars. 展开更多
关键词 Brassica napus L. rape cultivars Top-quality hybrid rape Quality traits YIELD Correlation analysis
下载PDF
Correlation between Carotenoids Content and Several Quality Traits of Wheat Varieties 被引量:2
8
作者 任得强 吴媛媛 +5 位作者 周健 姜艳 郑文寅 张文明 郭文善 姚大年 《Agricultural Science & Technology》 CAS 2015年第9期1883-1890,1977,共9页
A total of 31 wheat varieties(lines) released in different years in Huanghuai Area were selected as materials so as to study the carotenoids content,lipoxygenase activity, and some other quality traits of wholemeal.... A total of 31 wheat varieties(lines) released in different years in Huanghuai Area were selected as materials so as to study the carotenoids content,lipoxygenase activity, and some other quality traits of wholemeal. Results showed that carotenoid content and other quality traits had highly significant differences among varieties. Carotenoids content was significantly positive correlated with watersoluble pentosan and yellowness. Carotenoids content was significantly negative correlated with peak viscosity, hold through, breakdown, final viscosity, unit weight,formation time, and was negative correlated with peak time, protein content and stability time. According to cluster analysis, carotenoid contents in 31 varieties were divided into three major groups: one group had common carotenoid content, which included 19 varieties such as Meng 0318; one group had relatively low carotenoid content, which included 10 varieties such as Luomai23; and the last group had relatively high carotenoid content, which included 2 varieties such as Huaimai22. The average carotenoid contents of the three groups were 1.93, 1.07 and 2.99 mg/kg respectively. 展开更多
关键词 WHEAT CAROTENOID Wholemeal Quality traits CORRELATION
下载PDF
家禽极低密度脂蛋白受体基因的研究进展 被引量:1
9
作者 任宇 马思雨 +5 位作者 郭爱伟 李青青 吴培福 杨亚晋 陈粉粉 刘莉莉 《中国家禽》 北大核心 2020年第12期81-86,共6页
极低密度脂蛋白受体(VLDLR)是一类不可缺少的膜表面受体蛋白,在哺乳动物体内主要是将肝脏合成的甘油三酯和胆固醇转移到肝外组织供机体利用。在家禽中,VLDL和卵黄蛋白原(VTG)是占卵黄重量30%以上的两个重要的卵黄前体物质,它们通过VLDL... 极低密度脂蛋白受体(VLDLR)是一类不可缺少的膜表面受体蛋白,在哺乳动物体内主要是将肝脏合成的甘油三酯和胆固醇转移到肝外组织供机体利用。在家禽中,VLDL和卵黄蛋白原(VTG)是占卵黄重量30%以上的两个重要的卵黄前体物质,它们通过VLDLR介导的内吞作用被生长中的卵母细胞吸收,从而加快卵泡的发育和卵黄的形成。目前关于VLDLR基因对家禽卵泡发育及蛋品质相关性状的调控取得了大量的研究进展,文章综述了VLDLR基因在家禽卵泡发育及蛋品质相关性状形成过程的研究进展,以期为后续相关研究提供参考和新的思路。 展开更多
关键词 极低密度脂蛋白受体 卵泡发育 品质相关性状
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部