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Table 2 Distribution of unique small RNA (sRNA) sequences from Tieguanyin tea plants subjected to normal water supply (CK), mild drought stress (T1), moderate drought stress (T2) and severe drought stress (T3) treatments. “Unann” refers to sRNA sequences for which no annotation information could be obtained by database comparisons

From: Identification of drought-responsive miRNAs and physiological characterization of tea plant (Camellia sinensis L.) under drought stress

Types

CK

T1

T2

T3

UniquesRNAs

Unique sRNAs

Unique sRNAs

Unique sRNAs

(Percentage)

(Percentage)

(Percentage)

(Percentage)

Total

8,797,521

7,277,866

7,842,237

5,165,455

(100%)

(100%)

(100%)

(100%)

Exon_antisense

743

842

897

1071

(0.01%)

(0.01%)

(0.01%)

(0.02%)

Exon_sense

1086

1354

1443

2136

(0.01%)

(0.02%)

(0.02%)

(0.04%)

Intron_antisense

156

180

164

227

(0%)

(0%)

(0%)

(0%)

Intron_sense

189

211

205

287

(0%)

(0%)

(0%)

(0%)

miRNA

32,364

29,770

35,077

30,580

(0.37%)

(0.41%)

(0.45%)

(0.59%)

rRNA

37,966

56,302

55,779

120,595

(0.43%)

(0.77%)

(0.71%)

(2.33%)

Repeat

31,260

28,218

29,298

26,544

(0.36%)

(0.39%)

(0.37%)

(0.51%)

snRNA

1969

2062

2363

3289

(0.02%)

(0.03%)

(0.03%)

(0.06%)

snoRNA

685

745

883

892

(0.01%)

(0.01%)

(0.01%)

(0.02%)

tRNA

2632

4201

4291

8184

(0.03%)

(0.06%)

(0.05%)

(0.16%)

unann

8,688,471

7,153,981

7,711,837

4,971,650

(98.76%)

(98.30%)

(98.34%)

(96.25%)