scholarly journals The Hot QTL Locations for Potassium, Calcium, and Magnesium Nutrition and Agronomic Traits at Seedling and Maturity Stages of Wheat under Different Potassium Treatments

Genes ◽  
2019 ◽  
Vol 10 (8) ◽  
pp. 607 ◽  
Author(s):  
Shen ◽  
Yuan ◽  
Zhang ◽  
Guo ◽  
Zhao ◽  
...  
Keyword(s):  
High Frequency ◽  
Agronomic Traits ◽  
Recombinant Inbred Lines ◽  
Field Trials ◽  
Inbred Lines ◽  
Mineral Nutrients ◽  
Seedling Traits ◽  
Maturity Stages ◽  
Use Efficiency ◽  
Low K

Potassium (K) is one of the most important mineral nutrients for wheat. In this study, the effects of low K (LK) treatments and the quantitative trait loci (QTLs) for K, calcium (Ca), and magnesium (Mg) use efficiency traits, both at the seedling and maturity stages of wheat, were investigated. The set of “Tainong 18 × Linmai 6” recombinant inbred lines (RILs) were used to identify the QTLs under different K treatments using hydroponic culture and field trials. The majority of K concentrations and content-related traits at seedling and maturity stages decreased with reduced K supply, but the K use efficiency-related traits increased. In contrast, with reduced K supply, the contents of Ca and Mg increased, while the Ca and Mg use efficiency decreased. A total of 217 QTLs for seedling traits and 89 QTLs for adult traits were detected. Four relatively high-frequency QTLs (RHF-QTLs) and 18 QTL clusters (colocation of QTLs for more than two traits) were detected. Eight clusters were detected for K-, Ca-, and Mg-related traits simultaneously. This means that these traits might be controlled by the same QTL. In addition, we highlight that 4B might be an important chromosome regulating the nutrition of K, Ca, and Mg in wheat. The 4B chromosome and four hot QTL clusters, which located 45 QTLs, might be important potential targets for further investigation.

QTL analysis of agronomic traits in recombinant inbred lines of sunflower under partial irrigation

2011 ◽  
Vol 5 (2) ◽  
pp. 135-146 ◽  
Author(s):  
P. Haddadi ◽  
B. Yazdi-samadi ◽  
M. R. Naghavi ◽  
A. Kalantari ◽  
P. Maury ◽  
...  
Keyword(s):  
Qtl Analysis ◽  
Recombinant Inbred ◽  
Agronomic Traits ◽  
Recombinant Inbred Lines ◽  
Inbred Lines

QTL mapping of seedling traits in cucumber using recombinant inbred lines

2015 ◽  
Vol 135 (1) ◽  
pp. 124-129 ◽  
Author(s):  
Min Wang ◽  
Shulin Liu ◽  
Shengping Zhang ◽  
Han Miao ◽  
Guili Tian ◽  
...  
Keyword(s):  
Qtl Mapping ◽  
Recombinant Inbred ◽  
Recombinant Inbred Lines ◽  
Inbred Lines ◽  
Seedling Traits

scholarly journals Potassium Uptake, Physiological and Molecular Responses in Different Winter Wheat Cultivars under Deficit Irrigation and Potassium Levels

2021 ◽  
Vol 25 (05) ◽  
pp. 937-944
Author(s):  
Xinyang Bai
Keyword(s):  
Winter Wheat ◽  
Biomass Production ◽  
Deficit Irrigation ◽  
Agronomic Traits ◽  
Photosynthetic Parameters ◽  
Wheat Cultivars ◽  
K Uptake ◽  
Winter Wheat Cultivars ◽  
Use Efficiency ◽  
Low K

Improving potassium (K) use efficiency (KUE) is beneficial for the sustainable production of cereal crops. In this study, the effects of K input level on its uptake and agronomic trait of the winter wheat under deficit irrigation were investigated in K deprivation responses, using two cultivars contrasting (low-K tolerant cultivar Kenong 9204 and K deprivation sensitive one Jimai 120). Under sufficient-K treatment (K180, SK), the two cultivars showed similar K contents, and K accumulation, biomass, photosynthetic parameters in upper expanded leaves, including yield components. Under deficient-K (K60, DK) condition, both cultivars showed varied behaviors of the K-associated traits, physiological parameters, growth and agronomic traits; however, better response was observed in Kenong 9204 than Jimai 120. These results suggested the essential roles of low-K tolerant cultivars under the K-saving management together with deficit irrigation. Two genes of the potassium transporter (HAK) family, TaHAK3 and TaHAK5, showed expression of significantly upregulated upon K deprivation, with much more transcripts shown in the K-deprived Kenong 9204 plants than Jimai 120 ones. Transgene analysis on the HAK genes validated their positive roles in modulating the K accumulation and biomass production of plants under low-K condition. These results indicated that distinct HAK family genes are transcriptionally regulated underlying K deprivation signaling and contribute to plant K uptake and biomass production under low-K conditions. This study suggested the drastically genetic variation on K uptake and biomass production across winter wheat cultivars treated by K- and water-saving conditions, associated with transcription efficiency of the distinct HAK genes which modulate K uptake, growth and development of plants. © 2021 Friends Science Publishers

scholarly journals QTLs for agronomic traits detected in recombinant inbred lines derived from a bread wheat × spelt cross

2018 ◽  
Vol 68 (5) ◽  
pp. 587-595 ◽  
Author(s):  
Yuki Sakai ◽  
Liangzi Cao ◽  
Ryosuke Funata ◽  
Takatou Shiraishi ◽  
Koki Yoshikawa ◽  
...  
Keyword(s):  
Bread Wheat ◽  
Recombinant Inbred ◽  
Agronomic Traits ◽  
Recombinant Inbred Lines ◽  
Inbred Lines
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