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Table 3 Estimation of time since integration

From: Identification of diverse full-length endogenous betaretroviruses in megabats and microbats

 

Divergencea

Age (mya)b

P. vampyrus

  

 PvERV-βA

0.024

30

 PvERV-βB

0.011

13.8

 PvERV-βC

0.027

33.8

 PvERV-βD

0.056

ND

 PvERV-βE

0.011

13.8

 PvERV-βF

0.043

ND

 PvERV-βG

0.039

ND

 PvERV-βH

0.006

7.5

 PvERV-βI

0.029

36.3

 PvERV-βJ

0.005

6.3

 PvERV-βK

0.025

ND

M. lucifugus

  

 MlERV-βA

0.055

29

 MlERV-βB

0.043

22.6

 MlERV-βC

0.008

4.2

 MlERV-βD

0.012

6.3

 MlERV-βE

0.007

3.7

 MlERV-βF

0.006

3.2

  1. a 5′ and 3′ LTR divergence: number of differences, per nucleotide, per site.
  2. b Molecular clock dating was used to estimate the time in millions of years (mya) since the integration of each betaretrovirus into the host genome, based on the number of nucleotide differences between the 5′ and 3′ LTRs of each betaretrovirus [25].
  3. ND: Not dated; these βERVs could not be dated using this method. PvERV-βD and PvERV-βF contained non-sequenced regions within their 5′ LTR, while PvERV-βG and PvERV-βK contained bulk deletions within their 3′ LTRs.