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Table 6 The correlation analysis between three years and eight seed-related traits among F2 population

From: Construction of the first high-density genetic linkage map and identification of seed yield-related QTLs and candidate genes in Elymus sibiricus, an important forage grass in Qinghai-Tibet Plateau

Traits

Year

2016

2017

2018

SL

FN

SS

SSD

SSC

AL

WS

SW1

SL

2016

1

  

1

       

2017

0.312**

1

 

1

       

2018

0.432**

0.981**

1

1

       

FN

2016

1

  

0.646**

1

      

2017

0.182*

1

 

0.362**

1

      

2018

0.773**

0.736**

1

0.345**

1

      

SS

2016

1

  

0.178*

0.315**

1

     

2017

0.189*

1

 

0.291**

0.317**

1

     

2018

0.372**

0.978**

1

0.331**

0.275**

1

     

SSD

2016

           

2017

   

−0.049

0.052

−0.340**

1

    

2018

           

SSC

2016

1

  

−0.142

−0.046

−0.079

 

1

   

2017

0.360**

1

 

−0.054

0.168*

0.039

0.064

1

   

2018

0.841**

0.783**

1

−0.074

0.103

0.118

 

1

   

AL

2016

1

  

0.383**

0.226**

0.113

 

−0.064

1

  

2017

0.194*

1

 

0.174*

0.151*

0.108

0.017

0.009

1

  

2018

0.559**

0.920**

1

0.189**

0.133

0.076

 

−0.063

1

  

WS

2016

1

  

0.470**

0.455**

0.284**

 

−0.139

0.373**

1

 

2017

0.072

1

 

0.310**

0.155*

−0.038

0.250**

−0.017

0.288**

1

 

2018

0.510**

0.890**

1

0.224**

0.210**

0.007

 

−0.134

0.285**

1

 

SW1

2016

1

  

0.144

−0.066

0.069

 

−0.154

0.202*

0.275**

1

2017

−0.026

1

 

0.456**

0.229**

0.018

0.113

0.085

0.325**

0.383**

1

2018

0.427**

0.684**

1

0.338**

−0.135

0.154*

 

−0.002

0.150*

0.107

1

  1. * represent significant correlation at 0.05 level, ** represent significant correlation at 0.01 level