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Identification of candidate genes for key fibre-related QTLs and derivation of favourable alleles in Gossypium hirsutum recombinant inbred lines with G. barbadense introgressions
海岛棉 基因组组分 遗传作图群体
2024/5/17
该研究以渗入了海岛棉基因组组分的优质种质鲁原343为亲本，构建了包含239个重组自交系的遗传作图群体，利用SLAF标签构建了高密度遗传图谱，结合7个环境的表型数据，共鉴定104个纤维品质和产量性状QTLs，其中66个QTL共定位于19个QTL簇中。该研究团队通过进一步对鲁原343进行全基因组深度测序，解析鲁原343的遗传组成及其对纤维相关性状的遗传贡献，发现来自G. hirsutum races（...
Examining two sets of introgression lines across multipleenvironments reveals background‑independent and stably expressedquantitative trait loci of fiber quality in cotton
陆海渐渗系 纤维品质 QTL 棉花
2024/5/17
首次利用两套陆海渐渗系鉴定纤维品质QTL，探讨遗传背景和环境对纤维品质QTL表达的影响，揭示了遗传背景对纤维品质QTL表达的影响明显大于环境因素；在全基因组上鉴定到稳定的QTLs 109个，不受背景影响的QTLs 9个。其中，61个稳定的QTLs，包括2个不受背景影响的QTLs，是新发现的；鉴定到19个含有多个纤维品质性状的优良等位基因的QTL簇，为进一步棉花分子育种提供了重要信息和理论指导。
Quantitative trait loci for resistance to Sharp Eyespot (Rhizoctonia cerealis) in recombinant inbred wheat lines from the cross Niavt 14 × Xuzhou 25
genetic map molecular marker QTL Rhizoctonia cerealis Sharp Eyespot wheat
2016/12/8
This paper studies QTL (quantitative trait locus) resistance to Sharp Eyespot in wheat using a genetic population of the recombinant inbred line (RIL) hybridized from Niavt 14 and Xuzhou 25. Based on ...
Stem rust resistance in 1BL.1RS and 2RL.2BS double wheat-rye translocation lines
backcrossing durable resistance minor genes Puccinia graminis f.sp. tritici
2015/12/29
The wheat stem rust pathogen, Puccinia graminis f.sp. tritici, is a significant and devastating disease of wheat crops worldwide. Wheat has many wild relatives in which to source new resistance genes,...
New resistance sources to Russian wheat aphid (Diuraphis noxia) in Swedish wheat substitution and translocation lines with rye (Secale cereale) and Leymus mollis
alien introgressions aphid resistance Dnr genes Triticum aestivum 1R
2015/12/29
Russian wheat aphid is an important pest in many wheat growing countries of the world. Different resistance genes to the pest have previously been identified. However, some biotypes of the pest are vi...
Common bunt resistance of Czech and European winter wheat cultivars and breeder lines
Bt genes SSRs Tilletia tritici Tilletia laevis
2014/9/22
Winter wheat cultivars recently registered in the Czech Republic were tested in three-year field tests for resistance to common bunt. Seeds were inoculated with a mixture of local strains of Tilletia ...
Effect of closed circuits drip irrigation system and lateral lines length on growth, yield, quality and water use efficiency of soybean crop
Closed Circuits Drip Irrigation Lateral Lines Soybean WUE
2013/2/28
Field experiment was conducted for one growing season (2012) in clay loam soil at the Experimental Farm of Faculty of Agriculture, Southern Illinois University at Carbondale (SIUC), USA on soybean cro...
Differential response of maize hybrid and its parental lines to salinity stress
antioxidant enzymes Na+ proline salinity stress sugars Zea mays L.
2014/2/24
We studied differences in salt stress response between two parental maize genotypes and their hybrid of the first filial (F1) generation. We determined their membrane stability index in addition to th...
Quantitative Trait Loci Influencing Endosperm Proteins and End-use Quality Traits of Hard Red Spring Wheat Breeding Lines
quantitative trait locus wheat quality
2014/2/25
Wheat bread-making quality is influenced by a complex group of traits including dough visco-elastic characteristics. In this study, quantitative trait locus/loci (QTL) mapping and analysis were conduc...
Developing Isogenic Lines of Japanese Rice Cultivar ‘Koshihikari’ with Early and Late Heading
heading date marker-assisted selection pleiotropic effect quantitative trait locus
2011/2/24
Four quantitative trait loci (QTLs) for rice (Oryza sativa L.) heading date were previously detected by QTL analysis of progeny derived from crosses between a japonica cultivar, Koshihikari, and an in...
Estimates of genetic parameters for yield and yield attributes in elite lines and popular cultivars of India’s pearl millet
PCV GCV heritability genetic advance
2011/1/13
Estimation of genetic parameters would be useful in developing appropriate selection strategies. Heritability is a measure of possible genetic advancement under selection. The research work pertaining...
Characterization of Introgression Lines for Yield-related Traits with Indica-type Rice Variety IR64 Genetic Background
days to heading grain weight new plant type Oryza sativa L., total spikelet number
2010/10/25
A total of 334 introgression lines (INLs: BC3-derived lines) derived from crosses between Indica cultivar IR64 as a recurrent parent and 10 donor parents including new plant type lines (IR65600-87-2-2...
Relationships between the HMW- and LMW-glutenin Subunits and SDS-Sedimentation Volume in Spanish Hulled Wheat Lines
emmer wheat genetic resources bread-making quality spelt wheat
2014/3/11
Emmer and spelt are two hulled wheats that were widely grown in Spain until the latter 1960s. Twentynine emmer and twenty-six spelt lines obtained from Spanish accessions of these hulled wheats were a...
Characterization of Inter-varietal Chromosome Substitution Lines of Wheat Using Molecular Markers
whea substitution lines SSR markers
2014/3/11
Several sets of wheat inter-varietal chromosome substitution lines (SLs) have been produced over the
last fifty years at the CRI (formerly RICP) in Prague-Ruzyně, based on cytogenetic manipulations ...
A multivariate analysis of variance (MANOVA) of the performance of sorghum lines in different agro-ecological regions of Zimbabwe
Multi-environment MANOVA resettled farmers sorghum production
2011/1/10
This study presents a multi-environment trial to evaluate the performance of sorghum lines in a target population of environments in Zimbabwe. The study attempts to determine whether genotypic variati...