TABLE 1.
Description of the samples used in this study.
| Sample ID | DCL-1 | DCL-2 | XYL-1 | XYL-2 | EL-1 | EL-2 | FXL-1 | FXL-2 | LGL-1 | LGL-2 | |
| Physicochemical properties | Date | 20160618 | 20170925 | 20160607 | 20170924 | 20140614 | 20170721 | 20151210 | 20170924 | 20160518 | 20170812 |
| Location | 24.96°N | 24.95°N | 24.38°N | 24.36°N | 25.94°N | 25.90°N | 24.57°N | 24.38°N | 27.71°N | 27.71-27.73°N | |
| 102.65°E | 102.66°E | 102.78°E | 102.79°E | 100.16°E | 100.15°E | 102.89°E | 102.85°E | 100.78°E | 100.76-100.80°E | ||
| WT (°C) | 22.13 | 21.80 | 25.08 | 23.80 | 23.50 | 22.20 | 16.91 | 22.40 | 15.19 | 20.87 | |
| PH | 8.45 | 8.63 | 8.88 | 9.45 | 9.51 | 8.66 | 8.04 | 8.94 | 8.18 | 8.76 | |
| TP (mg/L) | 0.544 | 0.351 | 0.468 | 0.581 | 0.032∗ | 0.031 | 0.022 | 0.020 | 0.024 | 0.013 | |
| TN (mg/L) | 5.815 | 4.816 | 5.181 | 4.151 | 0.57∗ | 0.593 | 0.220 | 0.168 | 0.048 | <0.103 | |
| Geographic information# | Lake | Lake Dianchi | Lake Xingyun | Lake Erhai | Lake Fuxian | Lake Lugu | |||||
| Trophic status | Eutrophic | Eutrophic | Mesoeutrophic | Oligomesotrophic | Oligotrophic | ||||||
| Basin | The Yangtze River | The Pearl River | The Lancang River, Jinsha, and Yuanjiang Rivers | The Pearl River | The Yangtze River | ||||||
| Water level (m a.s.l.) | 1887.4 | 1722 | 1971 | 1721 | 2690.75 | ||||||
| Area (km2) | 308.6 | 34.7 | 249.8 | 211 | 48.25 | ||||||
| Average water depth (m) | 4.4 | 7 | 10.5 | 87 | 40.3 | ||||||
| Maximum depth(m) | 6 | 11 | 21.5 | 155 | 93.5 | ||||||
| Volume (108 m3) | 11.69 | 1.84 | 25.31 | 189 | 19.53 | ||||||
| Lake type | Shallow | Shallow | Shallow | Deep | Deep | ||||||
| Metagenomic survey | Clean data (Gbps) | 50.60 | 58.91 | 50.38 | 64.12 | 63.43 | 63.98 | 60.49 | 53.01 | 51.85 | 41.43 |
| Number of clean reads | 337,333,394 | 392,760,680 | 335,888,304 | 427,445,344 | 422,842,886 | 426,528,358 | 403,286,044 | 353,402,296 | 345,656,552 | 276,184,372 | |
| Number of contigs (>500 bps) | 2,381,193 | 2,318,367 | 3,929,297 | 3,368,043 | 1,604,121 | ||||||
| Number of predicted CDS | 3,775,712 | 3,059,812 | 6,560,747 | 5,229,770 | 2,840,196 | ||||||
| % Predicted CDS with taxonomic group assignment | 60.22 | 44.12 | 57.69 | 40.85 | 58.89 | ||||||
| % Predicted CDS with KOs assignment | 26.45 | 20.66 | 27.24 | 20.23 | 27.91 | ||||||
| Bacteria (%, based on reads from metagenomic data) | 23.31 | 33.11 | 14.66 | 41.15 | 13.65 | 18.79 | 19.69 | 12.55 | 22.61 | 28.97 | |
| Archaea (%, based on reads from metagenomic data) | 0.04 | 0.02 | 0.01 | 0.01 | 0.02 | 0.03 | 0.03 | 0.02 | 0.03 | 0.02 | |
| Viruses (%, based on reads from metagenomic data) | 0.74 | 0.09 | 0.03 | 0.03 | 0.06 | 0.14 | 0.28 | 0.08 | 0.39 | 0.11 | |
TN, total nitrogen concentration (mg/L); TP, total phosphorus concentration (mg/L); WT, water temperature; ∗Data source: Cao et al. (2018). #Data source: [opetwcite]B12,B86[clotwcite]Cui et al. (2008); Yang et al. (2010), [opetwcite]B29,B45[clotwcite]Hu et al. (2014); Liao et al. (2015), Wang et al. (2015a, b), [opetwcite]B15,B22[clotwcite]Ding et al. (2017); Gao et al. (2018).