Table 6 The pairwise comparison result of the upper lethal temperature data in Table 3 by two-way ANOVA and the Tukey test, showing intra-breed variation in the thermal tolerance plasticity of mulberry silkworm (Bombyx mori L.)

42.8 ± 0.227^b

40.5 ± 0.217^d

38 ± 0.213 ^fg

43.8 ± 0.244^a

41.3 ± 0.186^cd

38.9 ± 0.214^ef

42.2 ± 0.189^bc

39.4 ± 0.237^e

37.6 ± 0.152^g

 < 0.001

 < 0.001

0.37

46 ± 0.113^b

43.7 ± 0.199^d

40.6 ± 0.242^fg

47 ± 0.0549^a

44.7 ± 0.177^c

41.3 ± 0.235^f

45.6 ± 0.152^bc

42.6 ± 0.26^e

40 ± 0.17^g

 < 0.001

 < 0.001

0.191

39.9 ± 0.213^ab

37.1 ± 0.205^cd

36.3 ± 0.207^de

40.8 ± 0.232^a

37.8 ± 0.178^c

36.7 ± 0.204^d

39.2 ± 0.18^b

36.9 ± 0.229^cd

35.4 ± 0.146^e

 < 0.001

 < 0.001

0.313

43.8 ± 0.221^ab

39.9 ± 0.311^cd

38.6 ± 0.315^de

44.8 ± 0.202^a

40.6 ± 0.273^c

39.2 ± 0.31^cd

43.3 ± 0.224^b

39.7 ± 0.362^cd

37.6 ± 0.238^e

 < 0.001

 < 0.001

0.56

41.2 ± 0.22^b

38.9 ± 0.209^c

37.1 ± 0.209^d

42.6 ± 0.262^a

40.4 ± 0.184^b

38.4 ± 0.21^c

40.4 ± 0.183^b

38.3 ± 0.231^c

36.3 ± 0.145^d

 < 0.001

 < 0.001

0.988

44.5 ± 0.178^ab

42.1 ± 0.241^c

39.6 ± 0.274^e

45.3 ± 0.108^a

43.6 ± 0.196^b

40.9 ± 0.248^d

44.1 ± 0.199^b

41.6 ± 0.291^cd

38.8 ± 0.198^e

 < 0.001

 < 0.001

0.317