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Table 3 Genes present in palindromes 1 and 2

From: A willow sex chromosome reveals convergent evolution of complex palindromic repeats

 

Gene symbol

Number of copies

GeneID

Chromosome of the non-W best hit

Best hit in A. thaliana

Arabidopsis name or description (function)

Best hit in P. trichocarpa v3

Identity of P. trichocarpa best hit

Palindromes W.P1 and W.P2

SMR

4[a]

Manually annotated

Chr19

AT5G23520

SMR (Small MutS Related) domain-containing protein)

Potri.T013000

90.70

RR

4

Sapur.15WG073500

Chr19

AT3G56380

ARR17 (type A cytokinin response regulator)

Potri.019G133600

92.81

Sapur.15WG073900

Sapur.15WG074000

Sapur.15WG075200

R1

4[a]

Sapur.15WG073800

Chr15Z

AT4G27220

NB-ARC domain-containing disease resistance protein

Potri.T012900

81.00

Sapur.15WG074100

R2

3(1)[a]

Manually annotated

Chr17

AT4G27220

NB-ARC domain-containing disease resistance protein

Potri.T013300

61.23

HCT

4(1)

Sapur.15WG073400

Chr19[b]

AT5G48930

HCT (hydroxycinnamoyl-coa shikimate/quinate hydroxycinnamoyl transferase)

Potri.018G104700

58.02

Sapur.15WG073600

Sapur.15WG073700

Sapur.15WG074200

Sapur.15WG075100

Palindrome W.P2 only

DRBM

2

Sapur.15WG074300

Chr17

AT1G09700

ATDRB1 (dsRNA binding protein)

Potri.017G126700

61.95

Sapur.15WG075000

TF2C

1

Sapur.15WG074400

Chr08[c]

AT2G27040

AGO4 (ARGONAUTE 4, siRNA mediated gene silencing)

NA

NA

ACDP

1

Sapur.15WG074900

Chr17

AT5G52790[d]

CBS domain protein with DUF21 (transmembrane transporter)

Potri.017G147900

83.33

DPRIM

2

Sapur.15WG074500

Chr17

AT5G52800

DNA primase

Potri.017G148000

92.52

Sapur.15WG074800

DUF789

2

Sapur.15WG074600

Chr17

AT1G03610

DUF789 (protein of unknown function)

Potri.017G152600

86.03

Sapur.15WG074700

  1. [a]Manually annotated transcripts were included in the count. Numbers in the parentheses are from a fragment in the upstream portion of W.P1 that is homologous to part of W.P1. [b]This cluster of tandem duplications on Chr19 in S. purpurea is not present on Chr19 in P. trichocarpa. [c]The palindrome gene contains only a truncated blast hit to Sapur.008G005800 on Chr08. [d]This best hit with an expected value of 8 × 10−3 due to a sequence length of 84 aa. Expected values of the remaining A. thaliana were less than 1 × 10− 10