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Table 1 Predicted orthology relationships by sequence comparison of all Hox genes reported to date in different lamprey species to infer the condition of the LCA of lampreys

From: Evolution of Hoxgene clusters in deuterostomes

PG

Lamprey Hox Gene

Petromyzon marinus

Lethenteron japonicum

Lampetra planeri

GenBank Acc. No

  

Pendleton et al.[59]

Amores et al.[60] / Force et al.[62]

Irvine et al.[63]

Smith et al.[67]

Takio et al.[65],[66] / Kuraku et al.[44]

Sharman et al.[64]

 

1

Hox1α

Pm27-a

    

LpHox1A (5 nt different: syn)

L14893; AF044797

Hox1β

Pm6-b*

1w

1B

Pm2Hox1w (5 nt, 3 aa different; 3 nt del.)

LjHox1w

LpHox1B (Identical)

L14902; AF434665; AB286671; AF044798

Hox1y

Pm87-c

  

PmHox1 (1 nt, 1 aa different)

  

L14908; ENSPMAT00000011284 (Ensembl)

Hox1δ

Pm62-d*

    

LpHox1C (4 nt different: syn)

L14904; AF044799

2

Hox2α

Pm6-e

 

E2

Pm1Hox2

  

L14890; AF410908; JQ706314

Hox2β

    

LjHox2 (5 nt different from E2)

LpHox2A (Identical to LjHox2)

AY497314; AF044800

3***

Hox3α

  

3

Pm1Hox3

LjHox3d

 

AF410909; AB125270; JQ706315

Hox3β

     

LpHox3A

AF044801

4

Hox4α

Pm33-n**

4w

 

Pm1Hox4w

LjHox4w (1nt different from 4w)

LpHox4-7B (1 nt different from 4w)

L14896; AF434666; AB125269; AF044803; JQ706316

Hox4β

   

Pm2Hox4

  

JQ706323

Hox4γ

Pm2-i

4x

  

LjHox4x

LpHox4-7E (3 nt, 1 aa different)

L14891; AY056469; AB125278; AF044806

Hox4δ

Pm99-g

4y

G4

   

L14912; AF410911

Hox4ϵ

Pm88-h

     

L14909

5-7***

Hox5α

  

N5

Pm1Hox5 (1nt, 1aa different)

  

AF410915; JQ706317

Hox6α

Pm33-n**

6w (1nt different: syn)

N6

Pm1Hox6

LjHox6w (4nt different from N6/Hox6: syn)

 

L14896; AF071235; AF410916; AB125275; JQ706318

Hox7α

  

N7

Pm1Hox7

  

AF410917; JQ706319

Hox5β

Pm63-l

51

L5/6

Pm2Hox5

  

L14905; AF410914; JQ706324

Hox7β

Pm4-k

83

K6/7

Pm2Hox7

LjHox6/7m (3 nt different from K6/7: syn)

LpHox4-7C (1 nt different from LjHox6/7m: syn)

L14897; AF410913; AB125272; AF044804

Hox5-7γ

Pm22-f

31

F5/6/7

PmHox7

 

LpHox4-7D (3 nt different: syn)

L14892; AF410910; AF044805; ENSPMAT00000011116 (Ensembl)

Hox5-7δ

Pm54.T7m

     

L14899

Hox5-7ϵ

Pm66-j

5w

J5/6/7

 

LjHox5w (1 nt different: syn)

LpHox4-7A (Identical to LjHox5w)

L14906; AF071234; AF410912; AB125277; AF044802

Hox5-7ζ

Pm74-o

    

LjHox5i (2 nt different)

L14907; AB125276

Hox5-7η

Pm50-p

     

L14898

8

Hox8α

Pm57-q

 

Q8

Pm1Hox8Q (4 nt, 1 aa different; 6 nt del.)

LjHoxQ8 (4nt different from Hox8: syn)

 

L14901; AH005896; AB125274; JQ706320

Hox8β

  

Q8a

Pm2Hox8Qb

  

AF035589; JQ706325

Hox8γ

Pm60-r

 

R8

PmHox8 (2 nt different: syn)

 

LpHox8A (3 nt different: syn)

L14903; AF035588; AF044807; ENSPMAT00000005057 (Ensembl)

Hox8δ

    

LjHox8p (7 nt, 2 aa different from Q8a)

 

AB125273

9

Hox9α

Pm28-v

9y

V9

Pm1Hox9 (6 nt, 2 aa different)

  

L14889; AF410919; JQ706321

Hox9β

Pm29-t

9w

T9

Pm2Hox9 (1 nt different: syn)

LjHox9r (5 nt different from T9: syn)

LpHox9B (4 nt different from T9: syn)

L14894; AF410918; AB125271; AF044810; JQ706326

Hox9γ

Pm94-u

9x

   

LpHox9C (3 nt different: syn)

L14910; AF044811

Hox9δ

Pm98-s

  

PmHox9 (Scaffold_6175)

 

LpHox9A (2 nt different: syn)

L14911; AF044809; ENSPMAT00000011060

Hox9ϵ

   

PmHox9 (Scaffold_16685)

  

ENSPMAT00000011449 (Ensembl)

10

Hox10α

  

W10b

 

LjHox10s (5 nt different from W10b: syn)

 

AF410921; AB286673

Hox10β

P3-w

10w

W10a

Pm2Hoxa10b

LjHoxW10a (4nt different from W10a: syn)

LpHox10B (2 nt different from W10a: syn)

L14895; AF410920; AB286672; AF044813

Hox10γ

Pm56-x

 

X10

   

L14900; AF410922

Hox10δ

     

LpHox10A (5 nt, 1 aa different from X10)

AF044812

11

Hox11α

***

 

Z11a

Pm1Hox11 (1nt, 1aa different)

  

AF410924; JQ706322

Hox11β

   

Pm2Hox11a

  

ENSPMAT00000010946 (Ensembl)

Hox11γ

***

11w

Y11

   

AF410923

Hox11δ

  

Z11b

   

AF410925

Hox11ϵ

    

LjHox11t

 

AB286674

13

Hox13α

    

LjHox13α

LpHox13A

AB293597; AF044814

Hox13β

PmHox13β

   

LjHox13β

 

AB293598; ENSPMAT00000000840 (Ensembl)

14

Hox14α

    

LjHox14α

 

AB293599

  1. * Just 2 nucleotides between Pm6-b and Pm62-d, but non-synonymous: probably two different genes. They also have Lampetra counterparts.
  2. ** Clone n of Pendleton et al.[59] corresponded to two different genes in Force et al.[62]: Hox4w and Hox6w.
  3. *** Clone 139 and Hox11 clones mentioned in [63] as personal communication by W.J. Bailey, and Hox3y and Hox5x from [62], are not taken into account for lacking a published sequence.
  4. Note: LpHox8B (AF044808) sequence from reference [64] contains two undetermined nucleotides, N, and could be orthologue of any other Hox8 gene previously identified.
  5. Note 2: In the case of Pm2Hox1w the whole coding sequence is available to compare, and that is why is more polymorphic than other cases, whith shorter sequences to align.
  6. Genes for which there are linkage data are shown in bold. Bold α and β genes belong to Pm1Hox and Pm2Hox clusters, respectively. See [67] and [68].
  7. nt, nucleotides; aa, amino acids; syn, synonymous; del, deletion.