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Table 4 The top ten positional candidate genes located in the wood density QTL interval on linkage group 9 of the F 1 hybrid parent in the E. urophylla backcross family (52.2 cM, 28,269,541 bp to 70.9 cM, 37,191,970 bp, E. grandis genome assembly V1.0, http://www.phytozome.net/ )

From: Genetic dissection of growth, wood basic density and gene expression in interspecific backcrosses of Eucalyptus grandis and E. urophylla

Gene identification

Physical position (bp)

At. identification

At. description

eQTL on linkage group

eQTL position (cM)

Correlation with wood density (R2)

Eucgr.I01988.1

29,648,986

AT5G15410.1

Cyclic nucleotide-regulated ion channel family protein

4, 6, 10

12, 101, 51

0.53

Eucgr.I02335.1

33,854,742

AT2G17820.1

Histidine kinase 1

4, 9, 10

27, 52, 74

0.52

Eucgr.I02215.1

32,019,312

AT5G65980.1

Auxin efflux carrier family protein

2, 9

74, 71

0.51

Eucgr.I02312.1

33,682,442

AT1G68490.1

Unknown

9, 10

58, 74

0.48

Eucgr.I02402.1

34,626,812

AT3G50930.1

Cytochrome BC1 synthesis

4, 10

20, 79

0.48

Eucgr.I02479.1

35,623,844

AT2G46600.1

Calcium-binding EF-hand family protein

10

48

0.47

Eucgr.I02498.1

35,941,078

AT1G23780.1

F-box family protein

9

52

0.43

Eucgr.I02108.1

30,728,548

AT3G19660.1

Unknown

10

51

0.42

Eucgr.I02337.1

33,876,173

AT5G66180.1

S-adenosyl-L-methionine-dependent methyltransferases superfamily protein

9

67

0.41

Eucgr.I01935.1

29,248,252

AT5G39865.1

Glutaredoxin family protein

4, 10

33, 77

0.41

  1. The positional candidate genes were identified using physical location, expression analysis and correlation of transcript abundance with wood density trait variation.
  2. At, Arabidopsis thaliana; eQTL, Expression quantitative trait locus; Eucgr., Eucalyptus grandis; QTL, Quantitative trait locus.