Table 2. Cucumber lincRNAs under positive selection and balancing selection.
| Gene_ID | Chr a | Length | S b | Pi c | Tajima’s D d | 95% confidence interval e | Peak expression tissue f |
|---|---|---|---|---|---|---|---|
| CU1NC10 | Chr1 | 239 | 9 | 0.001105 | −2.2659441** | No | NA |
| CU1NC88 | Chr1 | 278 | 4 | 0.0062904 | 2.5505173* | Yes | Ovary1 |
| CU1NC163 | Chr1 | 291 | 2 | 0.0034695 | 2.4648383* | Yes | Root |
| CU1NC200 | Chr1 | 501 | 7 | 0.0050127 | 2.0830965* | Yes | Root |
| CU1NC212 | Chr1 | 636 | 4 | 0.0026174 | 2.3492285* | Yes | Root |
| CU1NC213 | Chr1 | 544 | 4 | 0.0030601 | 2.3492285* | Yes | Root |
| CU1NC281 | Chr1 | 203 | 3 | 0.0070937 | 2.7242963* | No | Ovary3 |
| CU1NC336 | Chr1 | 513 | 3 | 0.0029223 | 2.8775269* | No | Leaf |
| CU1NC346 | Chr1 | 253 | 2 | 0.0039875 | 2.503925* | Yes | Root |
| CU1NC413 | Chr1 | 294 | 2 | 0.0032004 | 2.2522393* | Yes | Root |
| CU1NC476 | Chr1 | 256 | 3 | 0.0057236 | 2.7862235* | No | Ovary3 |
| CU1NC531 | Chr1 | 569 | 7 | 0.0003921 | −1.9389757* | Yes | Ovary3 |
| CU1NC532 | Chr1 | 612 | 5 | 0.0001901 | −2.0106222* | Yes | Ovary3 |
| CU2NC602 | Chr2 | 419 | 3 | 0.0005007 | −1.9692466* | Yes | Ovary3 |
| CU2NC712 | Chr2 | 313 | 10 | 0.0039749 | −2.0240647* | No | Ovary3 |
| CU2NC844 | Chr2 | 492 | 4 | 0.000271 | −1.8212527* | Yes | Tendril |
| CU2NC897 | Chr2 | 303 | 4 | 0.0012324 | −1.8243111* | Yes | Ovary3 |
| CU2NC903 | Chr2 | 365 | 3 | 0.0040301 | 2.8203487* | No | Root |
| CU2NC943 | Chr2 | 1005 | 7 | 0.000392 | −1.9146939* | Yes | Ovary3 |
| CU3NC998 | Chr3 | 206 | 4 | 0.007585 | 2.0897819* | Yes | Ovary2 |
| CU3NC1042 | Chr3 | 261 | 2 | 0.0037901 | 2.4445273* | Yes | Root |
| CU3NC1046 | Chr3 | 211 | 2 | 0.0047828 | 2.5080474* | Yes | Leaf |
| CU3NC1070 | Chr3 | 224 | 2 | 0.0042939 | 2.3222843* | Yes | Ovary3 |
| CU3NC1211 | Chr3 | 342 | 5 | 0.0004525 | −2.1717458** | No | Root |
| CU3NC1228 | Chr3 | 205 | 4 | 0.0020915 | −1.8572054* | Yes | Ovary3 |
| CU3NC1230 | Chr3 | 232 | 5 | 0.0004226 | −1.9060085* | Yes | Root |
| CU3NC1394 | Chr3 | 325 | 4 | 0.00515 | 2.3797784* | Yes | Ovary3 |
| CU3NC1397 | Chr3 | 271 | 3 | 0.0050691 | 2.5022962* | Yes | Ovary3 |
| CU3NC1466 | Chr3 | 359 | 2 | 0.0025722 | 2.1949941* | Yes | Male_flower |
| CU3NC1523 | Chr3 | 271 | 6 | 0.0115769 | 2.5886134* | Yes | Root |
| CU4NC1592 | Chr4 | 519 | 3 | 0.0028003 | 2.7559386* | No | Root |
| CU4NC1593 | Chr4 | 270 | 5 | 0.0072616 | 2.2587333* | Yes | Root |
| CU4NC1605 | Chr4 | 367 | 4 | 0.0045567 | 2.3688663* | Yes | Ovary3 |
| CU4NC1606 | Chr4 | 568 | 3 | 0.0021774 | 2.0839754* | Yes | Male_flower |
| CU4NC1644 | Chr4 | 350 | 3 | 0.0037895 | 2.3348271* | Yes | Ovary3 |
| CU4NC1659 | Chr4 | 488 | 2 | 0.0019324 | 2.2553741* | Yes | Female_flower |
| CU4NC1667 | Chr4 | 246 | 2 | 0.0037646 | 2.1717333* | Yes | Ovary1 |
| CU4NC1767 | Chr4 | 260 | 3 | 0.0058175 | 2.9329276* | No | Ovary2 |
| CU4NC1781 | Chr4 | 283 | 3 | 0.0044405 | 2.135983* | Yes | Ovary1 |
| CU4NC1796 | Chr4 | 196 | 5 | 0.0030814 | −1.8400142* | Yes | Ovary3 |
| CU4NC1800 | Chr4 | 292 | 2 | 0.0033105 | 2.3304458* | Yes | Ovary3 |
| CU4NC1802 | Chr4 | 417 | 2 | 0.0023499 | 2.3860244* | Yes | Male_flower |
| CU4NC1868 | Chr4 | 304 | 3 | 0.0041277 | 2.1525254* | Yes | Root |
| CU4NC1885 | Chr4 | 516 | 3 | 0.0002247 | −2.0113611* | Yes | Ovary2 |
| CU5NC1977 | Chr5 | 302 | 2 | 0.0033386 | 2.5229679* | Yes | Ovary3 |
| CU5NC2008 | Chr5 | 467 | 2 | 0.0019797 | 2.1919823* | Yes | Female_flower |
| CU5NC2111 | Chr5 | 277 | 3 | 0.0008379 | −1.9128665* | Yes | Ovary3 |
| CU5NC2118 | Chr5 | 385 | 2 | 0.0023619 | 2.1313885* | Yes | Stem |
| CU5NC2119 | Chr5 | 605 | 2 | 0.001503 | 2.1313885* | Yes | Stem |
| CU5NC2199 | Chr5 | 409 | 5 | 0.0002844 | −2.0106222* | Yes | Tendril_base |
| CU5NC2215 | Chr5 | 280 | 6 | 0.0006261 | −1.8997299* | Yes | Male_flower |
| CU5NC2264 | Chr5 | 361 | 2 | 0.002709 | 2.389199* | Yes | Ovary2 |
| CU5NC2297 | Chr5 | 750 | 3 | 0.0001277 | −1.9040852* | Yes | Ovary2 |
| CU5NC2308 | Chr5 | 306 | 5 | 0.0004429 | −2.0981125* | No | Ovary1 |
| CU5NC2322 | Chr5 | 289 | 5 | 0.0004683 | −1.9736752* | Yes | Ovary1 |
| CU5NC2333 | Chr5 | 1185 | 12 | 0.0003154 | −2.2046959** | No | Ovary3 |
| CU5NC2398 | Chr5 | 462 | 5 | 0.0006118 | −1.839069* | Yes | Ovary2 |
| CU5NC2405 | Chr5 | 346 | 2 | 0.002886 | 2.4711995* | Yes | Tendril |
| CU5NC2413 | Chr5 | 302 | 5 | 0.0003246 | −1.9060085* | Yes | Leaf |
| CU5NC2414 | Chr5 | 258 | 5 | 0.0004501 | −1.8626232* | Yes | Tendril |
| CU6NC2488 | Chr6 | 233 | 3 | 0.0013168 | −1.7863936* | Yes | Female_flower |
| CU6NC2519 | Chr6 | 435 | 5 | 0.0058552 | 2.1541265* | Yes | Female_flower |
| CU6NC2591 | Chr6 | 368 | 8 | 0.0006311 | −2.3781938** | No | Ovary1 |
| CU6NC2592 | Chr6 | 388 | 7 | 0.0003503 | −2.0974517* | No | Ovary1 |
| CU6NC2614 | Chr6 | 376 | 3 | 0.0039007 | 2.7872349* | No | Root |
| CU6NC2664 | Chr6 | 1414 | 5 | 0.0003119 | −1.8432369* | Yes | Ovary3 |
| CU6NC2673 | Chr6 | 258 | 3 | 0.000859 | −1.9415208* | Yes | Ovary1 |
| CU6NC2686 | Chr6 | 205 | 4 | 0.0080763 | 2.3471704* | Yes | Female_flower |
| CU6NC2748 | Chr6 | 260 | 2 | 0.0035033 | 2.1110979* | Yes | Female_flower |
| CU6NC2798 | Chr6 | 517 | 2 | 0.0002231 | −2.0124695* | Yes | Ovary3 |
| CU6NC2830 | Chr6 | 1978 | 12 | 0.0001921 | −2.273675** | No | Ovary3 |
| CU6NC2833 | Chr6 | 754 | 7 | 0.0036891 | 2.5633424* | Yes | Ovary3 |
| CU6NC2881 | Chr6 | 231 | 2 | 0.0043548 | 2.5263375* | Yes | Male_flower |
| CU7NC3029 | Chr7 | 370 | 2 | 0.0026393 | 2.3991555* | Yes | Root |
| CU7NC3079 | Chr7 | 453 | 6 | 0.0003417 | −2.1717458** | No | Root |
| CU7NC3086 | Chr7 | 202 | 2 | 0.0009368 | −1.8691152* | Yes | Female_flower |
| CU7NC3093 | Chr7 | 339 | 6 | 0.0018118 | −1.8311426* | Yes | Root |
| CU7NC3094 | Chr7 | 330 | 5 | 0.0014267 | −1.9062613* | Yes | Ovary2 |
| CU7NC3201 | Chr7 | 345 | 3 | 0.0036221 | 2.130209* | Yes | Tendril |
| CU7NC3207 | Chr7 | 465 | 3 | 0.0002485 | −1.8638834* | Yes | Male_flower |
| CU7NC3276 | Chr7 | 389 | 4 | 0.000346 | −1.9751531* | Yes | Ovary3 |
* indicates a significance level of p<0.05
** indicates a significance level of p<0.01.
a Chr: Chromosome where the lincRNA is located.
b S: Number of polymorphic (segregating) sites.
c Pi: Nucleotide diversity.
d Tajima’s D calculated for lincRNAs from 102 cucumber accessions.
e The threshold 95% confidence interval calculated for all cucumber intergenic regions from 102 cucumber accessions. "Yes" indicates that the Tajima’s D value for each lincRNA is within the 95% confidence interval, while "No" indicates that the Tajima’s D value for each lincRNA is outside of the 95% confidence interval.
f Peak expression tissue: tissue with the highest expression level of lincRNAs. Ovary1: unexpanded ovary. Ovary2: expanded ovary (fertilized). Ovary3: expanded ovary (unfertilized).