Table 1 Categorization of reads of small RNAs in pear fruit at various developmental stages DAF: days after flowering

Total reads

22,354,861

23,934,357

19,030,925

25,576,773

23,934,213

24,527,030

23,226,360

Clean reads

21,612,084

23,153,525

18,618,514

25,086,346

23,575,395

24,263,969

22,718,306

Exon_antisense

319,460

308,465

218,280

257,309

215,078

220,482

256,512

Exon_sense

509,150

453,742

341,272

398,473

365,311

350,102

403,008

Intron_antisense

377,104

395,221

298,440

378,094

331,083

360,635

356,763

Intron_sense

797,178

619,168

528,500

614,109

662,064

599,612

636,772

Known miRNAs

1,147,166

1,014,459

1,271,600

1,590,575

1,170,540

1,113,401

1,217,957

rRNA etc.*

1,158,744

756,242

617,356

708,315

607,519

635,925

747,350

Repeat

9,514,359

10,881,244

8,544,263

11,564,973

11,161,868

11,351,321

10,503,005

Un-annotated

7,788,923

8,724,984

6,798,803

9,574,498

9,061,932

9,632,491

8,596,939