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Table 1 Summary of TGTT and AACA elements in four Rosaceae genomes

From: TGTT and AACA: two transcriptionally active LTR retrotransposon subfamilies with a specific LTR structure and horizontal transfer in four Rosaceae species

Family

Superfamily

No. of intact element

Length of LTR (bp)

Length of intact element (bp)

Start and end of LTR (Plus)

Length of TSDs

Ave. age

 

Lineage

(mys)

PbrTGTT1

Copia/Ale

8

184

5049

TG..TT

5

2.32

MdTGTT1

Copia/Ale

6

179

5113

TG..TT

5

0.91

PpTGTT1

Copia/Ale

4

179

5009

TG..TT

5

0.16

PmTGTT1

Copia/ Ale

2

180

5055

TG..TT

5

0.65

PbrTGTT2

Copia/ Ale

22

180

5039

TG..TT

5

0.3

MdTGTT2

Copia/ Ale

3

169

5046

TG..TT

5

0.92

PbrTGTT3

Copia/ Ale

2

152

5114

TG..TT

4

0.38

PbrTGTT4

Copia/ Ale

3

229

4999

TG..TT

6

0.28

Subtotal/average

 

50

180

5053

TG..TT

5

0.74

PbrAACA1

Copia/ Ale

7

266

4924

AA..CA

6

0.94

PmAACA1

Copia/ Ale

2

251

4883

AA..CA

6

0.15

PbrAACA2

Copia/ Ale

4

201

4857

AA..CA

6

0.05

PbrAACA3

TRIM

4

244

2129

AA..CA

6

1.85

PbrAACA4

TRIM

16

203/242

2364/2522

AA..CA

6

1.84

MdAACA4

TRIM

8

207/242

2606/2735

AA..CA

6

1.03

Subtotal/average

 

41

232

3378

AA..CA

6

1.26

  1. Note: PbrAACA4 and MdAACA4 elements can be separated into two sub-groups based on their sequence length, since their sequence identity and sequence length are still over 80%, the two sub-groups were still classified into one family