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Table 4 Pearson correlations at three stages among all root-related traits for GWAS population

From: Genome-wide association screening and verification of potential genes associated with root architectural traits in maize (Zea mays L.) at multiple seedling stages

Traits

RDW

RDW/SDW

TRL

SUA

ARD

ROV

V1

 RDW/SDW

0.509**

     

 TRL

0.115

-0.251*

    

 SUA

0.183

-0.224*

0.902**

   

 ARD

0.037

0.025

-0.303**

-0.031

  

 ROV

0.172

-0.203

0.731**

0.907**

0.0262*

 

 RBN

0.104

-0.212

0.752**

0.790**

-0.114

0.749**

V2

 RDW/SDW

0.101

     

 TRL

0.788**

-0.183

    

 SA

0.822**

-0.214*

0.941**

   

 ARD

0.381**

-0.127

0.247*

0.418**

  

 ROV

0.816**

-0.199*

0.857**

0.970**

0.542**

 

 RBN

0.634**

-0.209*

0.837**

0.852**

0.378**

0.814**

V3

 RDW/SDW

0.615**

     

 TRL

0.773**

0.423**

    

 SUA

0.843**

0.477**

0.870**

   

 ARD

0.394**

0.215*

0.104

0.343**

  

 ROV

0.813**

0.438**

0.704**

0.933**

0.532**

 

 RBN

0.719**

0.451**

0.900**

0.806**

0.100

0.649**

  1. RDW root dry weight, RDW/SDW root per shoot dry weight, TRL total root length, SUA surface area, ARD average diameter, ROV root volume, RBN root branching number
  2. the symbol * and ** indicate respectively, significance at P < 0.05 and at P < 0.01