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Table 4 List of top 20 repeat sequences originated piRNAs that upregulated in PGCs

From: Small non-coding RNA profiling and the role of piRNA pathway genes in the protection of chicken primordial germ cells

piRNA seq. ID

Sequence length

Sequences

Origin

Genomic distribution

PGCs

Stage X

GSCs

CEFs

Fold change

(RPKM)

(RPKM)

(RPKM)

(RPKM)

ISG_3439104*

25

TATTTCCTAACGTCCAGCCTGAACC

Repeat seq.

LINE/CR1:0

1147.02

13.07

13.52

0

129.42

ISG_1952422*

27

CCAGAACACACTTGGCCTTCCGGGCTG

Repeat seq.

LINE/CR1:0

928.3

3.78

17.55

0

130.55

ISG_2828838

25

CACTGATGGACAGGTCCTGGCTAAG

Repeat seq.

LTR/ERVL:1

251.4

2.68

3.92

0

114.24

ISG_1920655*

27

ACTGAACACAGCACTCGAGGTGAGGCC

Repeat seq.

LINE/CR1:0

242.5

2.83

3.49

0

115.05

ISG_587310

25

TATTTCCTAACGTCCAGCCTGAATC

Repeat seq.

Ambi

215.07

1.73

2.29

0

160.43

ISG_434349

27

TCCTTGCACAGCCACGACAGTCGCCTG

Repeat seq.

LINE/CR1:0

205.56

0.31

3.6

0

157.61

ISG_3712010

25

TACCTGTAGAACCCCTTCTTGTTGT

Repeat seq.

LINE/CR1:0

194.22

0.63

4.03

0

124.93

ISG_347271

28

TTGAACCTCATTAGGTTTTCGTGGGACC

Repeat seq.

LINE/CR1:0

175.2

2.36

2.83

0

101.14

ISG_471296

27

TGCACTCGATGCCATCGTCTGTCACTG

Repeat seq.

LINE/CR1:0

169.35

0.47

4.03

0

112.74

ISG_2635821

26

TTCCAGCGTTGTGTGATTTTAGAAGC

Repeat seq.

LINE/CR1:1

155.45

0.63

3.16

0

123

ISG_2618644

26

TGCTGACGGACTTCCCTGGGCCTGCT

Repeat seq.

LTR/ERVL:1

150.81

0.16

1.85

0

225

ISG_3554587

29

TCTGATCATCCTCTGGACTTGCTCCAAGA

Repeat seq.

LINE/CR1:0

149.72

0.63

2.51

0

143.16

ISG_3050277

25

TTTTGACTTAAAAAACGTGTGCGCC

Repeat seq.

LTR/ERVL:1

144.48

2.99

1.09

0

106.18

ISG_1247918

25

AAGAAAGACGCAGAGCTCTTGGACC

Repeat seq.

LINE/CR1:1

130.09

0.79

3.05

0

101.63

ISG_2559548

26

TTTCCATCCCTCACTGTCTCTGAGCT

Repeat seq.

LINE/CR1:0

120.94

0.16

2.07

0

162.79

ISG_2994213

27

TGTACCTGTAGAACCCCTTCTTGTTGT

Repeat seq.

LINE/CR1:0

119.36

0

1.74

0

205.28

ISG_2004249

23

TTTCCTAACGTCCAGCCTGAACC

Repeat seq.

LINE/CR1:0

110.95

0.16

1.64

0

185.66

ISG_988698

26

GATGATCAGAGGGCTGGAGCACCTCC

Repeat seq.

LINE/CR1:1

110.22

0.63

1.96

0

127.55

ISG_1691836

26

TGTACCTGTAGAACCCCTTCTTGTTG

Repeat seq.

LINE/CR1:0

109.73

0.16

1.64

0

183.61

ISG_2499527

25

AGGAATGGGCTGCCCAGAGAGGTGG

Repeat seq.

LINE/CR1:1

108.39

0

1.53

0

213.04

  1. LINE: long interspersed element; CR1: chicken repetitive 1 element; LTR: long terminal repeat; ERVL: endogenous retroviral element; Ambi (ambiguous): denotes small RNAs overlap with more than one repeat type. *piRNAs were examined by qPCR along with CR1.