Genome-Wide Analysis of Sweet Potato Ammonium Transporter (AMT): Influence on Nitrogen Utilization, Storage Root Development and Yield
Abstract
:1. Introduction
2. Results
2.1. Yield and Agronomic Traits at Harvest
2.2. Agronomic Traits at Canopy Closure
2.3. N Content
2.4. N Use Efficiencies
2.5. Genome-Wide Identification
2.6. Phylogenetic Analysis
2.7. Gene Structure and Motif Composition
2.8. Synteny Analysis
2.9. Analysis of Cis-Regulatory Elements
2.10. qRT-PCR Expression Analysis
2.11. Relationship between N Content and IbAMT1 Gene Expression
3. Discussion
3.1. Effect of N Uptake and Utilization on Growth, Development, and Yield
3.2. Relationship between AMT Gene Family and N Uptake and Utilization
4. Materials and Methods
4.1. Experimental Site and Plant Material
4.2. Field Experiments
4.3. Plant Sampling and Analysis
4.4. Total N Content
4.5. Calculations
4.6. Sweet Potato AMT Family Genes’ Identification and Analysis
4.7. Phylogenetic Analysis
4.8. Conserved Motifs, Gene Structures, and Chromosomal Distribution Analysis
4.9. Ka/Ks Analyses and Gene Collinearity
4.10. Cis-Regulatory Elements
4.11. qRT-PCR Analysis
4.12. Statistical Analysis
5. Conclusions
Supplementary Materials
Author Contributions
Funding
Data Availability Statement
Conflicts of Interest
References
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Year | Treatment | Storage Root Number per Plant | Storage Root Weight (g) | Yield (kg ha−1) |
---|---|---|---|---|
2021 | NN | 3.00 ± 0.53 b | 68.07 ± 2.87 b | 10,035.58 ± 1717.58 c |
LN | 3.50 ± 0.53 ab | 87.81 ± 4.76 a | 15,335.75 ± 2230.94 ab | |
MN | 3.88 ± 0.64 a | 90.00 ± 6.08 a | 17,356.83 ± 2501.77 a | |
HN | 3.25 ± 0.46 b | 86.09 ± 2.85 a | 13,975.53 ± 1901.70 b | |
2022 | NN | 2.75 ± 0.46 b | 73.43 ± 4.18 b | 10,108.88 ± 1867.65 c |
LN | 3.25 ± 0.71 ab | 84.83 ± 7.11 a | 13,653.75 ± 2601.93 ab | |
MN | 3.50 ± 0.76 a | 86.95 ± 4.69 a | 15,179.02 ± 3123.49 a | |
HN | 2.88 ± 0.64 ab | 81.99 ± 5.90 a | 11,854.79 ± 3036.84 bc | |
ANOVA | ||||
Year | 1.56 * | 22.80 | 34,895,725.64 * | |
Treatment | 2.04 ** | 1017.34 ** | 110,543,895.31 ** | |
Year × Treatment | 0.02 | 77.42 | 4,467,957.23 |
Year | Treatment | Leaf Weight per Plant (g) | Petiole Weight per Plant (g) | Stem Weight per Plant (g) | Storage Root Weight per Plant (g) |
---|---|---|---|---|---|
2021 | NN | 41.87 ± 2.55 d | 56.33 ± 3.31 d | 74.43 ± 5.33 d | 200.71 ± 34.35 c |
LN | 76.66 ± 3.03 c | 107.36 ± 5.16 c | 123.61 ± 5.61 c | 306.72 ± 44.62 ab | |
MN | 90.97 ± 5.38 b | 126.88 ± 5.96 b | 153.89 ± 3.73 b | 347.14 ± 50.04 a | |
HN | 97.50 ± 2.09 a | 150.07 ± 5.77 a | 207.27 ± 5.64 a | 279.51 ± 38.03 b | |
2022 | NN | 46.92 ± 1.69 c | 43.23 ± 1.91 d | 105.42 ± 5.69 d | 202.18 ± 37.35 c |
LN | 63.36 ± 5.03 b | 74.53 ± 1.71 c | 145.92 ± 4.49 c | 273.08 ± 52.04 ab | |
MN | 88.81 ± 4.40 a | 95.75 ± 2.50 b | 185.98 ± 3.50 b | 303.58 ± 62.47 a | |
HN | 90.78 ± 7.00 a | 123.20 ± 5.22 a | 204.81 ± 8.05 a | 237.10 ± 34.54 bc | |
ANOVA | |||||
Year | 293.99 ** | 10,799.89 ** | 6880.54 ** | 13,958.29 * | |
Treatment | 8260.67 ** | 21,558.12 ** | 39,354.79 ** | 44,217.56 ** | |
Year × Treatment | 238.19 ** | 320.08 ** | 1033.28 ** | 1787.18 |
Year | N Application Rate (kg ha−1) | Storage Root Number per Plant | Storage Root Weight per Plant (g) | Storage Root Weight per Plant (g) |
---|---|---|---|---|
2021 | NN | - | - | - |
LN | 3.50 ± 0.53 ab | 9.22 ± 0.50 b | 32.09 ± 3.90 b | |
MN | 4.13 ± 0.64 a | 11.43 ± 1.65 a | 46.36 ± 3.86 a | |
HN | 3.25 ± 0.71 b | 9.12 ± 0.68 b | 29.75 ± 6.99 b | |
2022 | NN | 2.63 ± 0.84 c | 8.84 ± 2.02 b | 22.60 ± 6.28 c |
LN | 3.30 ± 0.64 ab | 9.76 ± 1.64 b | 31.79 ± 5.58 b | |
MN | 3.55 ± 0.50 a | 12.07 ± 2.08 a | 42.71 ± 9.14 a | |
HN | 2.98 ± 0.49 bc | 10.20 ± 1.07 b | 29.96 ± 2.74 b | |
ANOVA analysis | ||||
Year | 1.47 | 6.81 | 18.77 | |
Treatment | 2.27 ** | 23.70 ** | 971.80 ** | |
Year × Treatment | 0.16 | 0.33 | 17.53 |
Period | Year | Treatment | N Uptake Efficiency (kg kg−1) | N Use Efficiency (kg kg−1) | N Fertilization Contribution Rates |
---|---|---|---|---|---|
Canopy Closure Period | 2021 | NN | - | - | - |
LN | 19.49 ± 0.27 b | 0.30 ± 0.01 a | - | ||
MN | 25.42 ± 0.16 a | 0.17 ± 0.01 b | - | ||
HN | 9.54 ± 0.09 c | 0.18 ± 0.01 b | - | ||
2022 | NN | - | 0.58 ± 0.05 a | - | |
LN | 22.72 ± 1.19 b | 0.27 ± 0.02 b | - | ||
MN | 27.66 ± 0.67 a | 0.17 ± 0.01 c | - | ||
HN | 11.86 ± 0.23 c | 0.15 ± 0.01 c | - | ||
Harvest Time | 2021 | NN | - | 0.78 ± 0.09 a | - |
LN | 107.04 ± 8.45 a | 0.55 ± 0.05 b | 0.35 ± 0.02 b | ||
MN | 73.96 ± 3.86 b | 0.45 ± 0.02 c | 0.42 ± 0.01 | ||
HN | 44.01 ± 2.58 c | 0.39 ± 0.02 c | 0.28 ± 0.01 | ||
2022 | NN | - | 1.17 ± 0.22 a | - | |
LN | 68.49 ± 8.43 a | 0.77 ± 0.10 b | 0.26 ± 0.01 | ||
MN | 47.29 ± 5.04 b | 0.62 ± 0.07 bc | 0.33 ± 0.02 | ||
HN | 32.72 ± 3.04 c | 0.44 ± 0.05 c | 0.15 ± 0.01 | ||
ANOVA | |||||
Canopy Closure Period | Year | 30.42 ** | 0 | - | |
Treatment | 388.74 ** | 0.13 ** | - | ||
Year × Treatment | 0.45 | 0 | - | ||
Harvest Time | Year | 2926.28 ** | 0.26 ** | 0.05 ** | |
Treatment | 3672.63 ** | 0.35 ** | 0.04 ** | ||
Year × Treatment | 280.17 ** | 0.03 | 0.00 ** |
Gene ID | Rename | Chromosome | +/− | From | To | Protein (aa) a | MW (Da) b | PI c | Instability Index | Subcellular Localization |
---|---|---|---|---|---|---|---|---|---|---|
g5252.t1 | IbAMT1.1 | LG2 | − | 6,966,130 | 6,967,728 | 474 | 50,364.83 | 5.94 | 26.04 | Plasma membrane |
g8186.t1 | IbAMT1.2 | LG2 | − | 29,455,175 | 29,457,130 | 500 | 53,162.08 | 6.49 | 25.23 | Plasma membrane |
g8219.t1 | IbAMT1.3 | LG2 | + | 29,703,630 | 29,707,688 | 718 | 76,762.85 | 8.54 | 45.62 | Plasma membrane |
g9593.t1 | IbAMT2.1 | LG3 | + | 1,155,199 | 1,157,128 | 461 | 50,746.34 | 8.49 | 42.93 | Plasma membrane |
g14003.t1 | IbAMT1.4 | LG4 | + | 8,704,965 | 8,706,760 | 495 | 52,496.55 | 7.11 | 23.74 | Cytosol |
g17995.t1 | IbAMT2.2 | LG5 | + | 9,624,603 | 9,630,151 | 450 | 48,335.51 | 8.77 | 28.96 | Plasma membrane |
g23921.t1 | IbAMT2.3 | LG6 | − | 22,757,713 | 22,760,447 | 404 | 44,089.46 | 6.22 | 32.83 | Plasma membrane |
g27616.t1 | IbAMT2.4 | LG7 | + | 17,584,800 | 17,610,979 | 480 | 52,074.74 | 8.34 | 35.08 | Plasma membrane |
g29440.t1 | IbAMT2.5 | LG7 | − | 30,456,113 | 30,458,239 | 410 | 44,766.8 | 6.34 | 37.27 | Plasma membrane |
g37079.t1 | IbAMT2.6 | LG9 | − | 22,670,108 | 22,674,025 | 327 | 35,229.26 | 8.74 | 34.14 | Plasma membrane |
g44418.t1 | IbAMT2.7 | LG11 | − | 22,000,413 | 22,003,757 | 449 | 48,838.24 | 6.30 | 31.50 | Plasma membrane |
g54923.t1 | IbAMT1.5 | LG13 | + | 26,814,002 | 26,816,033 | 510 | 54,360.35 | 6.85 | 27.43 | Plasma membrane |
City | Year | Month | Total Rainfall (mm) | Maximum Temperature (°C) | Minimum Temperature (°C) | Average Temperature (°C) |
---|---|---|---|---|---|---|
Haikou | 2021 | 10 | 505.30 | 32.00 | 18.00 | 24.90 |
11 | 26.30 | 30.00 | 17.00 | 22.70 | ||
12 | 57.90 | 25.00 | 14.00 | 19.00 | ||
2022 | 1 | 16.70 | 26.00 | 14.00 | 19.70 | |
2 | 140.60 | 26.00 | 8.00 | 16.80 | ||
Sanya | 10 | 45.00 | 31.00 | 20.00 | 25.70 | |
11 | 2.10 | 31.00 | 20.00 | 25.60 | ||
12 | 0.20 | 29.00 | 15.00 | 21.70 | ||
2023 | 1 | 3.00 | 28.00 | 14.00 | 21.30 | |
2 | 9.00 | 31.00 | 18.00 | 23.40 |
Gene Name | Forward Primer Sequence (5′-3′) | Reverse Primer Sequence (5′-3′) |
---|---|---|
Actin | TATGGTTGGGATGGGACAGAA | CGGTAAGAAGGACAGGGTGCT |
IbAMT1.1 | CAACGGCGTGGAAGACAAATTCG | GAAGACTAGGTAGGCGGAGAAGAGG |
IbAMT1.2 | GGAAGACGAAATGGCGGGTATGG | TGCGGGTTCAATCCTTCTCATTTGG |
IbAMT1.3 | CATATCCATACCGACGCCCATGTAC | CTCCTCCCTCCCATCTCTCATCAAG |
IbAMT1.4 | TGTCGGGGCATTGGAAAGTTACG | ATTAAGACCAGAGCCGCCACAAAC |
IbAMT1.5 | CGGAAGATGAGACCTGCGGAATG | GTGTGGGAGTATTGGACGGTTCG |
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Meng, Y.-Y.; Wang, N.; Zhang, H.-Y.; Xu, R.; Si, C.-C. Genome-Wide Analysis of Sweet Potato Ammonium Transporter (AMT): Influence on Nitrogen Utilization, Storage Root Development and Yield. Int. J. Mol. Sci. 2023, 24, 17424. https://doi.org/10.3390/ijms242417424
Meng Y-Y, Wang N, Zhang H-Y, Xu R, Si C-C. Genome-Wide Analysis of Sweet Potato Ammonium Transporter (AMT): Influence on Nitrogen Utilization, Storage Root Development and Yield. International Journal of Molecular Sciences. 2023; 24(24):17424. https://doi.org/10.3390/ijms242417424
Chicago/Turabian StyleMeng, Ya-Yi, Ning Wang, Hai-Yan Zhang, Ran Xu, and Cheng-Cheng Si. 2023. "Genome-Wide Analysis of Sweet Potato Ammonium Transporter (AMT): Influence on Nitrogen Utilization, Storage Root Development and Yield" International Journal of Molecular Sciences 24, no. 24: 17424. https://doi.org/10.3390/ijms242417424