The presence of Bt-transgenic oilseed rape in wild mustard populations affects plant growth
Yongbo Liu1,*, C. Neal Stewart Jr. 2, Junsheng Li1, Hai Huang1, Xitao Zhang1
1 State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
2 Department of Plant Sciences, University of Tennessee, 2431 Joe Johnson Drive, Knoxville, TN 37996-4561, USA
* Correspondence author:
State Key Laboratory of Environmental Criteria and Risk Assessment
Chinese Research Academy of Environmental Sciences
8 Dayangfang, Beijing 100012, China
Tel/Fax: 86-10-84910906;
Email: (YL)
Short title: Bt oilseed rape in wild populations
Tables
Supplementary Table 1. Parameters of linear regression functions (Y~a+b*X) against the proportion of Bt OSR for measured plant characteristics in the field.
Parameters / Branch number / Biomass / Seed weight / RABt OSR insect +
a / 16.5 / 139.9 / 8.86 / 7.12
b / -0.48 / -22.8 / -1.37 / -0.14
R2 / 0.15 / 0.73 / 0.57 / 0.01
P value / 0.22 / <0.001 / 0.005 / 0.86
Bt OSR insect -
a / 16.3 / 135.6 / 8.73 / 6.23
b / -0.60 / -21.9 / -1.42 / -0.05
R2 / 0.15 / 0.67 / 0.46 / 0.01
P value / 0.22 / 0.001 / 0.02 / 0.95
Mustard insect +
a / 7.99 / 13.6 / 8.14 / 31.9
b / -0.81 / -1.96 / -1.68 / -1.22
R2 / 0.32 / 0.19 / 0.38 / 0.03
P value / 0.06 / 0.16 / 0.03 / 0.58
Mustard insect -
a / 7.51 / 11.8 / 4.12 / 23.5
b / -0.27 / -1.09 / -0.88 / -1.45
R2 / 0.02 / 0.02 / 0.70 / 0.09
P value / 0.67 / 0.64 / 0.001 / 0.36
a RA, reproduction allocation.
Supplementary Table 2. F values of mixed ANOVA (Y~I*P +Error(block)) for population yield in the field.
Insect (I) / 1 / 0.08 / 15.66***
Proportion (P) / 4 / 8.68*** / 19.53***
I*P / 4 / 0.82 / 10.60***
*, ** and *** indicate the significant difference at P<0.05, 0.01 and 0.001 respectively.
Supplementary Fig. 1. Percentage of three ratings of damaged leaf area for wild mustard and OSR in the greenhouse. A, mustard; B, oilseed rape. L, ML, M, MH and H, from low to high plant densities. Different letters above bars indicate a significant difference at P<0.05, and “ns”, no significant difference.