scholarly journals Investigation of the Genetic Diversity and Quantitative Trait Loci Accounting for Important Agronomic and Seed Quality Traits in Brassica carinata

2017 ◽  
Vol 8 ◽  
Author(s):  
Wenshan Zhang ◽  
Dandan Hu ◽  
Rosy Raman ◽  
Shaomin Guo ◽  
Zili Wei ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Seed Quality ◽  
Brassica Carinata ◽  
Quality Traits ◽  
Trait Loci ◽  
Seed Quality Traits

Genes and Quantitative Trait Loci Controlling Biomass Yield and Forage Quality Traits in Perennial Wildrye

Crop Science ◽  
2014 ◽  
Vol 54 (1) ◽  
pp. 111-126 ◽  
Author(s):  
Steven R. Larson ◽  
Kevin B. Jensen ◽  
Joseph G. Robins ◽  
Blair L. Waldron
Keyword(s):  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Biomass Yield ◽  
Forage Quality ◽  
Quality Traits ◽  
Trait Loci

scholarly journals Quantitative trait loci identification and genetic diversity analysis of panicle structure and grain shape in rice

2019 ◽  
Vol 90 (1) ◽  
pp. 89-100 ◽  
Author(s):  
Xin Xu ◽  
Mengchen Zhang ◽  
Qun Xu ◽  
Yue Feng ◽  
Xiaoping Yuan ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Quantitative Trait Loci ◽  
Quantitative Trait ◽  
Grain Shape ◽  
Rice Yield ◽  
Pcr Analysis ◽  
Diversity Analysis ◽  
Dh Population ◽  
Genetic Diversity Analysis ◽  
Trait Loci

Abstract Panicle structure and grain shape are important components of rice architecture that directly contribute to rice yield and are regulated by quantitative trait loci (QTLs). In this study, a doubled haploid (DH) population derived from a cross between japonica “Maybelle” and indica “Baiyeqiu” was used to determine genetic effects on panicle structure and grain shape. All detected traits exhibited a continuous, transgressive distribution in the DH population. QTL analysis showed that a total of 24 QTLs related to panicle structure and grain shape were detected on chromosomes 1, 2, 3, 4, 5, 6, 7, 9, 10, and 12, and three epistatic interaction QTLs were detected. Some genes related to panicle structure and grain shape were predicted in the major QTLs, and variations existed between the parents in all genes. Only OsIDS1, GS5, and SRS3 had nonsynonymous mutations that led to protein changes. Quantitative real-time PCR analysis showed that the expression levels of GS5 and OsFOR1 significantly differed between the two parents. In addition, genetic diversity analysis showed that the H3-35–H3-37, H6-18–H6-19, and H7-12–H7-14 intervals might be selected in the breeding program.

scholarly journals Identification of Quantitative Trait Loci Relating to Flowering Time, Flag Leaf and Awn Characteristics in a Novel Triticum dicoccum Mapping Population

Plants ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 829
Author(s):  
Tally I.C. Wright ◽  
Angela C. Burnett ◽  
Howard Griffiths ◽  
Maxime Kadner ◽  
James S. Powell ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Quantitative Trait Loci ◽  
Flowering Time ◽  
Quantitative Trait ◽  
Marker Assisted Selection ◽  
Mapping Population ◽  
Flag Leaf ◽  
Snp Array ◽  
Leaf Length ◽  
Trait Loci

Tetraploid landraces of wheat harbour genetic diversity that could be introgressed into modern bread wheat with the aid of marker-assisted selection to address the genetic diversity bottleneck in the breeding genepool. A novel bi-parental Triticum turgidum ssp. dicoccum Schrank mapping population was created from a cross between two landrace accessions differing for multiple physiological traits. The population was phenotyped for traits hypothesised to be proxies for characteristics associated with improved photosynthesis or drought tolerance, including flowering time, awn length, flag leaf length and width, and stomatal and trichome density. The mapping individuals and parents were genotyped with the 35K Wheat Breeders’ single nucleotide polymorphism (SNP) array. A genetic linkage map was constructed from 104 F4 individuals, consisting of 2066 SNPs with a total length of 3295 cM and an average spacing of 1.6 cM. Using the population, 10 quantitative trait loci (QTLs) for five traits were identified in two years of trials. Three consistent QTLs were identified over both trials for awn length, flowering time and flag leaf width, on chromosomes 4A, 7B and 5B, respectively. The awn length and flowering time QTLs correspond with the major loci Hd and Vrn-B3, respectively. The identified marker-trait associations could be developed for marker-assisted selection, to aid the introgression of diversity from a tetraploid source into modern wheat for potential physiological trait improvement.

Association and expression quantitative trait loci (eQTL) analysis of porcine AMBP, GC and PPP1R3B genes with meat quality traits

2011 ◽  
Vol 39 (4) ◽  
pp. 4809-4821 ◽  
Author(s):  
Mehmet Ulas Cinar ◽  
Autchara Kayan ◽  
Muhammad Jasim Uddin ◽  
Elisabeth Jonas ◽  
Dawit Tesfaye ◽  
...  
Keyword(s):  
Quantitative Trait Loci ◽  
Meat Quality ◽  
Quantitative Trait ◽  
Eqtl Analysis ◽  
Quality Traits ◽  
Expression Quantitative Trait Loci ◽  
Meat Quality Traits ◽  
Trait Loci
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