scholarly journals Analysis of QTLs for Reproductive Development and Seed Quality Traits in Soybean using Recombinant Inbred Lines

2004 ◽  
Vol 54 (4) ◽  
pp. 399-407 ◽  
Author(s):  
Satoshi Watanabe ◽  
Teuku Tajuddin ◽  
Naoki Yamanaka ◽  
Masaki Hayashi ◽  
Kyuya Harada
Keyword(s):  
Recombinant Inbred ◽  
Seed Quality ◽  
Recombinant Inbred Lines ◽  
Reproductive Development ◽  
Inbred Lines ◽  
Quality Traits ◽  
Seed Quality Traits

Identification of QTLs for seed quality traits in rapeseed (Brassica napus L.) using recombinant inbred lines (RILs)

Euphytica ◽  
2016 ◽  
Vol 210 (1) ◽  
pp. 1-16 ◽  
Author(s):  
Xian-Qun Huang ◽  
Tuan Huang ◽  
Guo-Zuo Hou ◽  
Li Li ◽  
Yan Hou ◽  
...  
Keyword(s):  
Brassica Napus ◽  
Recombinant Inbred ◽  
Seed Quality ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Quality Traits ◽  
Brassica Napus L ◽  
Seed Quality Traits

QTL mapping of seed-quality traits in sunflower recombinant inbred lines under different water regimes

Genome ◽  
2008 ◽  
Vol 51 (8) ◽  
pp. 599-615 ◽  
Author(s):  
A. Ebrahimi ◽  
P. Maury ◽  
M. Berger ◽  
S. Poormohammad Kiani ◽  
A. Nabipour ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Water Treatment ◽  
Recombinant Inbred ◽  
Oil Content ◽  
Seed Quality ◽  
Recombinant Inbred Lines ◽  
Principal Component ◽  
Inbred Lines ◽  
Quality Traits ◽  
Seed Quality Traits

The objectives of the present research were to determine the effects of water stress on seed-quality traits and to map QTLs controlling the studied traits under two different water treatments in a population of sunflower recombinant inbred lines (RILs). Two experiments were conducted in greenhouse and field conditions, each with well-watered and water-stressed treatments. The experiments consisted of a split-plot design (water treatment and RIL) with three blocks. Analyses of variance showed significant variation among genotypes, and a water treatment × genotype interaction was also observed for most of the traits. Two to 15 QTLs were found, depending on trait and growth conditions, and the percentage of phenotypic variance explained by the QTLs ranged from 5% to 31%. Several QTLs for oil content overlapped with QTLs for palmitic and stearic acid contents in all four conditions. An overlapping region on linkage group 3 (QTLs 2.OC.3.1 and 4.SA.3.1) was linked to an SSR marker (ORS657). A principal component analysis was performed on four fatty acid traits. Two principal components, P1 and P2, were used for QTL analysis. This method improved the ability to identify chromosomal regions affecting the fatty acids. We also detected the principal-component QTLs that did not overlap with the fatty acid QTLs. The results highlight genomic regions of interest in marker-based breeding programmes for increasing oil content in sunflower.

scholarly journals Molecular mapping of QTLs for fiber quality traits in Gossypium hirsutum multi-parent recombinant inbred lines

Euphytica ◽  
2021 ◽  
Vol 217 (9) ◽  
Author(s):  
Asena Akkose Baytar ◽  
Ceng Peynircioğlu ◽  
Volkan Sezener ◽  
Anne Frary ◽  
Sami Doğanlar
Keyword(s):  
Gossypium Hirsutum ◽  
Recombinant Inbred ◽  
Molecular Mapping ◽  
Recombinant Inbred Lines ◽  
Fiber Quality ◽  
Inbred Lines ◽  
Quality Traits ◽  
Fiber Quality Traits

Application of Aegilops tauschii–Triticum aestivum recombinant inbred lines for grain protein content quantitative trait loci detection and wheat improvement

2020 ◽  
Vol 100 (4) ◽  
pp. 425-434
Author(s):  
Yarui Su ◽  
Pingan Liao ◽  
Danyang Song ◽  
Shiquan Huang ◽  
Jie He ◽  
...  
Keyword(s):  
Triticum Aestivum ◽  
Quantitative Trait Loci ◽  
Protein Content ◽  
Quantitative Trait ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Aegilops Tauschii ◽  
Grain Protein Content ◽  
Inbred Lines ◽  
Quality Traits

Grain protein content (GPC) is an important nutritional quality trait of wheat. Aegilops tauschii Coss. is a progenitor of common wheat and has been shown to have high GPC. The objective of this study was to identify quantitative trait loci (QTL) for GPC using A. tauschii–Triticum aestivum L. recombinant lines. An advanced BC2F6 population (112 lines) containing A. tauschii segments was developed using synthetic octaploid wheat (hexaploid wheat Zhoumai 18 × A. tauschii T093), which displayed significant phenotype variances. Two quality traits, GPC and wet gluten, and four yield-related traits, thousand kernel weight, spikelet number per plant, grain number per spike, and grain weight per spike, were evaluated. The results show that the mean GPCs of these lines were significantly higher than those of Zhoumai 18. Correlation and mapping analyses indicated that quality traits were weakly negatively correlated with yield traits. Furthermore, 16 A. tauschii-derived QTL for GPC were detected in the recombinant inbred lines, and four stable QTL that have no significant negative effects on yield and are located within the same marker interval were detected in both environments. Additionally, high-protein, high-yield lines 150228 and 150368 with stable QTL were obtained, and both can be directly utilised for fine mapping of the GPC genes and molecular marker–assisted selection to achieve synergistic improvement of wheat yield and protein content.

scholarly journals Pedigree-based genetic dissection of quantitative loci for seed quality and yield characters in improved soybean

2021 ◽  
Vol 41 (2) ◽  
Author(s):  
Wenxuan Huang ◽  
Jingjing Hou ◽  
Quan Hu ◽  
Jie An ◽  
Yanwei Zhang ◽  
...  
Keyword(s):  
Recombinant Inbred ◽  
Seed Quality ◽  
Recombinant Inbred Lines ◽  
Meta Analysis ◽  
Inbred Lines ◽  
Genetic Dissection ◽  
Germplasm Resources ◽  
Breeding Goal ◽  
The Relationship ◽  
Qtls Mapping

AbstractAs soybean plays an indispensable role in the supply of vegetable oil and protein, balancing the relationship between seed quality and yield traits according to human demand has become an important breeding goal for soybean improvement. Here, 256 intraspecific recombinant inbred lines (RILs), derived from a cross between Qi Huang No.34 (QH34) and Ji Dou No.17 (JD17), were used for quantitative trait loci (QTLs) mapping with remarkable four chemical and physical properties with a purpose for exploring the distribution of excellent alleles in germplasm resources in China. A total of 25 QTLs were detected, of which 10 QTLs inherited the alleles from the parent QH34. Pedigree research on favorable alleles on these QTLs showed the process of excellent alleles pyramided into QH34. Meta-analysis of the 25 QTLs by comparing with existed QTLs in previous study identified 17 novel QTLs. QTLs with pleiotropic effects have been detected. Furthermore, three representative elite recombinant inbred lines in different locations that have great potential in soybean breeding were selected, and finally, four seed weight-related candidate genes were identified. The discovery of these QTLs provides a new guidance for combining the diversity and rarity of germplasm resources, which can effectively increase population genetic diversity and broaden genetic basis of varieties.

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