| Literature DB >> 35898295 |
Ewen Mullins, Jean-Louis Bresson, Tamas Dalmay, Ian Crawford Dewhurst, Michelle M Epstein, Leslie George Firbank, Philippe Guerche, Jan Hejatko, Francisco Javier Moreno, Hanspeter Naegeli, Fabien Nogué, Nils Rostoks, Jose Juan Sánchez Serrano, Giovanni Savoini, Eve Veromann, Fabio Veronesi, Michele Ardizzone, Giacomo De Sanctis, Silvia Federici, Antonio Fernandez Dumont, Andrea Gennaro, Jose Angel Gomez Ruiz, Tilemachos Goumperis, Anna Lanzoni, Paolo Lenzi, Franco Maria Neri, Nikoletta Papadopoulou, Tommaso Raffaello, Franz Streissl.
Abstract
Oilseed rape MON 94100 was developed to confer tolerance to dicamba herbicide. The molecular characterisation data and bioinformatic analyses do not identify issues requiring food/feed safety assessment. None of the identified differences in the agronomic/phenotypic and compositional characteristics tested between oilseed rape MON 94100 and its conventional counterpart needs further assessment, except for the levels of carbohydrates, calcium and ADF in seeds, which do not raise nutritional and safety concerns. The GMO Panel does not identify safety concerns regarding the toxicity and allergenicity of the dicamba mono-oxygenase (DMO) protein as expressed in oilseed rape MON 94100. The GMO Panel finds no evidence that the genetic modification impacts the overall safety of oilseed rape MON 94100. In the context of this application, the consumption of food and feed from oilseed rape MON 94100 does not represent a nutritional concern in humans and animals. The GMO Panel concludes that oilseed rape MON 94100 is as safe as the conventional counterpart and non-GM oilseed rape reference varieties tested, and no post-market monitoring of food/feed is considered necessary. In the case of accidental release of viable oilseed rape MON 94100 seeds into the environment, this would not raise environmental safety concerns. The post-market environmental monitoring plan and reporting intervals are in line with the intended uses of oilseed rape MON 94100. The GMO Panel concludes that oilseed rape MON 94100 is as safe as its conventional counterpart and the tested non-GM oilseed rape reference varieties with respect to potential effects on human and animal health and the environment.Entities:
Keywords: DMO; GM; MON 94100; genetic engineering; import and processing; oilseed rape (Brassica napus)
Year: 2022 PMID: 35898295 PMCID: PMC9305391 DOI: 10.2903/j.efsa.2022.7411
Source DB: PubMed Journal: EFSA J ISSN: 1831-4732
Mean values, standard errors and ranges of newly expressed protein in seeds [μg/g dry weight (dw) and μg/g fresh weight (fw)] from oilseed rape MON 94100 (n = 20)
| Dicamba treatment | ||||
|---|---|---|---|---|
| Tissues | Not treated | Treated | ||
| μg/g dry weight (dw) | μg/g fresh weight (fw) | μg/g dry weight (dw) | μg/g fresh weight (fw) | |
|
| ||||
| DMO | 0.63 | 0.59 ± 0.029 (0.33–0.81) | 0.64 ± 0.068 (0.38–1.8) | 0.59 ± 0.063 (0.35–1.6) |
Mean value.
Standard error.
Range.
Overview of the comparative analysis studies to characterise the oilseed rape MON 94100 provided in application EFSA‐GMO‐NL‐2020‐169
| Study focus | Study details | Comparator | Non‐GM reference varieties |
|---|---|---|---|
| Agronomic, phenotypic and compositional | Field study, US and Canada, 2018, eight sites | 55076 × 65037 | 12 |
GM: Genetically modified.
Six field trials were located in United States at Power County, Idaho; Bonneville County, Idaho; Jerome County, Idaho; Grand Forks County, North Dakota; Brookings County, South Dakota and Grant County, Washington. Two field trials were located in Canada at Portage la Prairie R.M., Manitoba and Westlake‐Gladstone R.M., Manitoba.
Non‐GM oilseed rape hybrid varieties with their corresponding maturity indicated in brackets were Advanta Hyola 575 CL (early), Brett Young 5535 CL (early), Brett Young 5545 CL (mid), Dekalb 71–30 CL (mid), Mycogen 2020 CL (mid), Mycogen 2022 CL (mid), Mycogen 2024 CL (mid), Pioneer 45H76 (mid), Pioneer 46H75 (mid), Rubisco Atomic TT (early), Rubisco DL1501 CL (mid‐late) and Rubisco Trapper (early).
Outcome of the comparative compositional analysis in seeds of oilseed rape MON 94100. The table shows the number of endpoints in each category
| Test of difference | |||||
|---|---|---|---|---|---|
| Not treated | Treated | ||||
| Not different | Significantly different | Not different | Significantly different | ||
|
| Category I/II | 31 | 11 | 32 | 11 |
| Category III/IV | 2 | 2 | 1 | 2 | |
| Not categorised | – | – | – | ||
| Total endpoints | 46 | 46 | |||
Comparison between MON 94100 oilseed rape and the conventional counterpart.
Four different outcomes: category I (indicating full equivalence to the non‐GM reference varieties); category II (equivalence is more likely than non‐equivalence); category III (non‐equivalence is more likely than equivalence); and category IV (indicating non‐equivalence). Not categorised means that the test of equivalence was not applied because of the lack of variation among the non‐GM reference varieties.
Treated/not treated with the intended herbicide.
Endpoints with significant differences between MON 94100 oilseed rape and the conventional counterpart and falling under equivalence category I‐II. Not treated only: threonine, valine, palmitic acid (16:0), oleic acid (C18:1), linoleic acid (C18:2) and alkyl glucosinolates. Treated only: ash, moisture, protein, histidine, tryptophan and α‐tocopherol. Both treated and not treated: NDF, glutamic acid, proline, sinapine and total glucosinolates.
Endpoints with no significant differences between MON 94100 oilseed rape and the conventional counterpart and falling in equivalence categories III–IV. Not treated only: moisture and calcium. Treated only: carbohydrates.
Endpoints with significant differences between MON 94100 oilseed rape and the conventional counterpart and falling in equivalence category III/IV. Not treated only: carbohydrates. Treated only: calcium. Both not treated and treated: ADF. Quantitative results for these endpoints are reported in Table 4.
Quantitative results (estimated means and equivalence limits) for compositional endpoints in MON 94100 oilseed rape that are further assessed based on the results of the statistical analysis
| Endpoint | MON 94100 oilseed rape | Conventional counterpart | Non‐GM reference varieties | ||
|---|---|---|---|---|---|
| Not treated | Treated | Mean | Equivalence limits | ||
|
| 24.48* | 24.68 | 24.92 | 26.79 | 24.85–28.73 |
|
| 13.76* | 13.82* | 14.46 | 15.95 | 14.71–17.19 |
|
| 0.35 | 0.34* | 0.36 | 0.43 | 0.37–0.49 |
dw: dry weight.
Treated with the intended herbicide dicamba (3,6‐dichloro‐2‐methoxybenzoic acid).
For MON 94100 oilseed rape, significantly different values are marked with an asterisk, while the outcomes of the test of equivalence are differentiated by greyscale backgrounds: light grey (equivalence category III) and dark grey (equivalence category IV).
Dietary exposure to DMO protein (μg/kg bw per day) in livestock, based on the consumption of oilseed rape meal
| Body weight (kg) | TDI feed (kg DM/animal) | IR (%) | DMO (μg/kg bw per day) | |
|---|---|---|---|---|
|
| 1.7 | 0.12 | 18 | 13 |
|
| 100 | 3 | 20 | 6 |
|
| 650 | 25 | 10 | 4 |
Statistically significant findings in 90‐day study on oilseed rape MON 94100 in rats
| Statistically significant parameter/endpoint | Finding | GMO Panel interpretation |
|---|---|---|
| Ambulatory activity | Total counts increased (25%) in females of the high‐dose group | Within normal variation for this parameter. Not an adverse effect of treatment. |
| Haemoglobin, haematocrit and red blood cell count | Reduced (3%) in the high‐dose groups. | Low magnitude. Not an adverse effect of treatment. |
| Monocyte count | Decreased (20%) in both test groups (significant at the low dose only) | Within normal variation for this parameter. Not an adverse effect of treatment. |
| Neutrophil count | Decreased (25%) at the low dose | Within normal variation for this parameter. No dose response. Not an adverse effect of treatment. |
| Testes weight | Increased 6% at the low dose | Small magnitude. No associated histopathological findings. Not an adverse effect of treatment. |
| Uterus weight relative to body weight | Increased 28% at the high dose and 33% at the low dose. Statistically significant at low dose only. | Within normal variation. The increase is mainly driven by animals with uterine dilatation/high fluid content, which is typically related to oestrus cycling. The incidence of uterine dilatation/high fluid content is not statistically different from concurrent control values and is within normal variation. Not an adverse effect of treatment. |
| Adrenal weights (absolute and relative to body weight) | Increased (10%) at the low dose. | Small magnitude. No dose response. No associated histopathological findings. Not an adverse effect of treatment. |
| Heart weights relative to body weight | Increased (10%) in both groups. | Small magnitude. No associated histopathological findings (controls have high level of necrosis). Not an adverse effect of treatment. |
| Liver weights relative to body weight | Increased (10%) in both groups. | Small magnitude, within normal variation. No associated histopathological or clinical chemistry findings. Not an adverse effect of treatment. |
| Pituitary weight | Increased (10%) at the low dose. | Small magnitude. No dose response. No associated histopathological findings. Not an adverse effect of treatment. |