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Table 3 Summary of SNPs associated with different traits as detected by genome wide association studies (GWAS) under normal and heat stress conditions using 662 doubled haploid association panel

From: Genome wide association mapping for heat tolerance in sub-tropical maize

Condition

Trait

No s

Chromosome (No s)

P-value range

PV (%)

Normal

GY

25

1 (1), 3 (1), 7 (2), 10 (21),

10−5 – 10−7

21.9–23.23

 

AD

17

1 (6), 3 (1), 6 (6), 8 (1), 10 (3)

10− 5

45.45–45.78

 

SD

19

1 (3), 3 (1), 4 (1), 6 (5),7 (1), 10 (8)

10−5 – 10− 6

36.69–39.21

 

ASI

25

1 (4), 6 (11), 8 (2), 10 (8)

10−5 – 10−7

20.94–21.89

 

PH

19

1 (1), 2 (3), 8 (2), 10 (13)

10−5 – 10−6

25.75–27.03

 

EH

14

2 (3), 7 (1), 8 (3), 10 (7)

10−5 – 10− 6

23.10–23.79

 

EPO

11

1 (1), 2 (3), 3 (4), 5 (1), 8 (1), 9 (1)

10−5 – 10−7

4.39–5.85

Heat stress

GY

12

1 (3), 3 (1), 6 (3), 7 (3), 10 (2)

10−5

18.14–18.65

 

ASI

17

1 (12), 2 (1), 3 (1), 6 (3)

10−5 – 10−6

27.81–28.53

 

EH

14

3 (1), 8 (12), 10 (1)

10−5 – 10−6

25.67–26.27

 

EPO

3

8 (3)

10−5

33.44–35.69

  1. No s Number of significant SNP-based associations, The value in parenthesis indicates the number of SNPs detected in that particular chromosome, PV (%) Percentage of the phenotypic variation range explained by SNP markers, GY Grain yield, AD Days to 50% anthesis, SD Days to 50% silking, ASI Anthesis-silking interval, PH Plant height, EH Ear height and EPO Ear position